{"title":"GMC Ignition","description":"\u003ch2\u003eWhy Upgrade Your GMC Ignition Performance Parts?\u003c\/h2\u003e\n\u003cp\u003eWhether you drive a daily commuter or a heavy-duty work truck, factory ignition components naturally degrade over time. This wear leads to poor fuel economy, rough idling, and delayed throttle response. Our \u003cstrong\u003eGMC ignition performance parts\u003c\/strong\u003e are specifically designed to solve these exact problems. By delivering a stronger, more consistent spark to your engine's combustion chamber, these components ensure complete fuel burn and reliable power delivery under heavy load.\u003c\/p\u003e\n\u003ch3\u003eDirect-Fit GMC Ignition Coil Upgrades\u003c\/h3\u003e\n\u003cp\u003eUpgrading to high-output coils is the most effective way to eliminate engine misfires when towing or accelerating. Our \u003cstrong\u003eGMC ignition coil upgrades\u003c\/strong\u003e bolt directly into the factory locations on your Sierra, Yukon, Acadia, or Savana. These units feature high-grade silicone boots and advanced internal windings, allowing them to resist the extreme heat found in heavy-duty applications. If you are replacing your coils, we highly recommend inspecting your \u003ca href=\"\/collections\/gmc-performance-tune\" title=\"GMC Performance Tune\"\u003eperformance chips\u003c\/a\u003e and spark plugs to guarantee maximum electrical transfer.\u003c\/p\u003e\n\u003ch3\u003eConsistent Power with Performance Modules\u003c\/h3\u003e\n\u003cp\u003eModern engines rely heavily on precision timing. For drivers looking to maximize their modifications, a \u003cstrong\u003eGMC performance ignition module\u003c\/strong\u003e provides sharper acceleration and better low-end torque. These modules communicate seamlessly with your factory ECU, providing advanced ignition timing without requiring extensive mechanical adjustments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I replace my GMC ignition coils?\u003c\/strong\u003e\u003cbr\u003eYou should inspect your ignition components if your truck experiences rough idling, sudden drops in gas mileage, or engine misfires while accelerating. Replacing them as a complete set ensures balanced performance across all cylinders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these components compatible with my factory ECU?\u003c\/strong\u003e\u003cbr\u003eYes. Our replacement modules and high-performance coils are engineered as direct plug-and-play replacements. They require no custom tuning, wire splicing, or specialized software to operate correctly.\u003c\/p\u003e","products":[{"product_id":"high-performance-ignition-coil-for-gmc-canyon-2009-2012-5-3l","title":"High Performance Ignition Coil for GMC Canyon (2009-2012) 5.3L","description":"\u003ch2\u003eHigh-Output UF414 Ignition Coils for 2009-2012 GMC Canyon (LH8\/LH9 \/ GMT355)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This complete set of eight high-performance UF414 ignition coils replaces degrading factory units to restore spark intensity, eliminate high-RPM misfires, and improve throttle response on 5.3L V8 GMT355 trucks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Canyon Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eOEM factory ignition coils on the 5.3L Gen IV LS engines are notorious for age-related thermal degradation. Constant exposure to the extreme heat cycles generated by the compact GMT355 engine bay causes the internal dielectric epoxy to break down over time. This leads to micro-cracking in the external housing and primary winding failure. As a result, the spark voltage drops significantly, leading to intermittent misfires under heavy load, sluggish low-end torque, and reduced fuel efficiency. The factory coil packs simply cannot sustain peak voltage output when pushed during towing, off-roading, or extended operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis UF414 replacement upgrade pack engineers out the factory flaws by utilizing heavy-duty primary and secondary copper wire windings that strictly exceed OEM specifications. By increasing the winding density and utilizing high-grade insulating epoxy, these coils deliver superior thermal dissipation and prevent internal voltage leaks. The reinforced housing materials are highly resistant to heat soak and engine bay vibrations. This results in a much hotter, more consistent spark across the entire RPM range. The enhanced spark duration allows for a more complete combustion cycle, translating to smoother idling, sharper throttle response, and the capability to support increased loads without spark blowout. Installation is a direct plug-and-play process utilizing the factory wiring harness.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2009-2012 GMC Canyon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e5.3L LH8\/LH9 V8 \/ GMT355\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e300 hp \/ 320 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2009 GMC Canyon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2010 GMC Canyon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2011 GMC Canyon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2012 GMC Canyon 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n\u003cp\u003eFor trucks built to haul and work, maintaining reliable ignition under heavy load is non-negotiable. These upgraded coils ensure your Canyon delivers consistent towing capability and unwavering off-road reliability without the risk of mid-trip misfires.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234161406200,"sku":"DS-EC0INH9QU","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-canyon-2009-2012-5-3l-1.jpg?v=1776098641"},{"product_id":"high-performance-ignition-coil-for-gmc-envoy-2005-2009-5-3l","title":"High Performance Ignition Coil for GMC Envoy (2005-2009) 5.3L","description":"\u003ch2\u003eHigh-Performance UF414 Ignition Coils for 2005-2009 GMC Envoy (LH6 \/ GMT360)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDesigned to replace degrading factory coils, this 8-pack of high-output ignition coils restores proper voltage delivery to the spark plugs, eliminating misfires and stabilizing idle on the 5.3L V8.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Envoy GMT360 Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe factory ignition coils on the LH6 5.3L engine are highly susceptible to thermal degradation due to their location directly above the exhaust manifolds. Over thousands of heat cycles, the internal epoxy potting breaks down, increasing internal electrical resistance. This thermal breakdown leads to a weak spark event, resulting in part-throttle hesitation, rough idling, and under-load misfires (often triggering P0300-series OBD-II codes). Furthermore, the stock coil winding ratios often struggle to provide adequate spark energy as the spark plug gap naturally increases with wear, causing incomplete combustion, diminished fuel economy, and poor throttle response.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThese upgraded UF414 replacement coils are engineered to exceed OEM specifications by utilizing high-grade copper windings with an optimized turns ratio, delivering a hotter, more consistent spark across the entire RPM range. The core is encased in a premium high-temperature epoxy resin that actively resists heat soak from the cylinder heads and exhaust manifolds, preventing internal shorting. The robust silicone boots and improved terminal contacts ensure maximum voltage transfer to the spark plug without arcing or dielectric breakdown. By guaranteeing complete combustion per cylinder cycle, this coil pack upgrade restores lost power, smooths out the Gen IV LS idle, and provides reliable ignition performance under heavy loads or towing conditions.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2005-2009 GMC Envoy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eLH6 5.3L V8 \/ GMT360\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e300 hp \/ 330 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2005-2009 GMC Envoy Denali (5.3L V8)\u003c\/li\u003e\n    \u003cli\u003e2005-2006 GMC Envoy XL Denali (5.3L V8)\u003c\/li\u003e\n    \u003cli\u003e2005-2006 GMC Envoy XL SLT\/SLE (5.3L V8)\u003c\/li\u003e\n    \u003cli\u003eFits all 2005-2009 V8 GMT360\/GMT370 models requiring UF414 coils\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe GMC Towing Caliber\u003c\/h3\u003e\n  \u003cp\u003eFor a GMT360 platform that frequently sees towing duty or heavy payloads, consistent spark delivery is critical to maintaining low-end torque and preventing detonation. This coil upgrade ensures your Envoy maintains peak pulling power and long-term reliability under prolonged engine loads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234165174520,"sku":"DS-ECO4C45S5","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-envoy-2005-2009-5-3l-1.jpg?v=1776098690"},{"product_id":"high-performance-ignition-coil-for-gmc-savana-1500-2500-3500-4500-2008-2019-4-8l-5-3l-6-0l","title":"High Performance Ignition Coil for GMC Savana 1500 2500 3500 4500 (2008-2019) 4.8L 5.3L 6.0L","description":"\u003ch2\u003eHigh-Output UF414 Ignition Coils for 2008-2019 GMC Savana (Vortec V8 \/ GMT610)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eReplaces degrading OEM ignition coils to eliminate misfires, restore lost fuel economy, and deliver a consistently strong spark under heavy load conditions.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock GMT610 Ignition Shortcomings\u003c\/h3\u003e\n  \u003cp\u003eThe factory GM coil packs on the Gen IV LS-based Vortec engines are notoriously susceptible to thermal degradation over extended mileage, particularly within the cramped, poorly ventilated engine bay of the GMT610 van chassis. As the internal epoxy and secondary windings endure thousands of extreme heat cycles, internal resistance naturally increases. This physical breakdown leads to weak spark delivery, intermittent cylinder misfires (frequently triggering P0300-series OBD-II codes), sluggish throttle response, and a noticeable drop in towing capability. Heat soak is the primary failure point, degrading the coil's internal insulation and causing spark blowout under heavy engine load.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThese upgraded UF414 replacement coils resolve OEM failure points by utilizing higher-grade internal copper windings and high-temperature epoxy resin potting. This advanced construction significantly lowers primary resistance while maximizing secondary voltage output to the spark plugs. The improved thermal management prevents the heat soak-induced voltage drops common in heavy-duty commercial van applications. By delivering a hotter, more stable spark with increased duration, these coils guarantee complete combustion within the cylinder. The result is a smoothed-out idle, optimized low-end torque for moving heavy payloads, and highly reliable ignition timing across the entire operating RPM range.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2008-2019 GMC Savana\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGen IV Vortec V8 (4.8L, 5.3L, 6.0L) \/ GMT610\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e280-342 hp \/ 295-373 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2008-2019 GMC Savana 1500 (4.8L, 5.3L V8)\u003c\/li\u003e\n    \u003cli\u003e2008-2019 GMC Savana 2500 (4.8L, 6.0L V8)\u003c\/li\u003e\n    \u003cli\u003e2008-2019 GMC Savana 3500 (4.8L, 6.0L V8)\u003c\/li\u003e\n    \u003cli\u003e2008-2019 GMC Savana 4500 (6.0L V8)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n  \u003cp\u003eEngineered for the strenuous demands of heavy towing, cargo hauling, and commercial fleet use, these upgraded ignition coils ensure your Savana remains on the road and out of the service bay. Consistent spark delivery means predictable, reliable engine performance when pulling maximum payloads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234165534968,"sku":"DS-E9UMM7W0P","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-savana-1500-2500-3500-4500-2008-2019-4-8l-5-3l-6-0l-1.jpg?v=1776098740"},{"product_id":"high-performance-ignition-coil-for-gmc-sierra-1500-2500-hd-3500-hd-2007-2019-4-8l-5-3l-6-0l-6-2l","title":"High Performance Ignition Coil for GMC Sierra 1500 2500 HD 3500 HD (2007-2019) 4.8L 5.3L 6.0L 6.2L","description":"\u003ch2\u003eHigh-Output UF414 Ignition Coils for 2007-2019 GMC Sierra (Gen IV \/ GMT900)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eThis complete set of eight upgraded ignition coils replaces degrading factory units to restore secondary voltage output, resolving misfires and stabilizing idle across GM V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Sierra Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe OEM GM ignition coils found on high-mileage GMT900 and early K2XX trucks suffer from progressive thermal degradation and epoxy casing fatigue over time. Mounted directly to the valve covers, these coils endure extreme under-hood temperatures and continuous heat cycling. This thermal stress breaks down the internal primary and secondary windings, leading to increased electrical resistance. As resistance climbs, the spark energy weakens, causing high-RPM spark blowout, rough idling, hesitation under heavy towing loads, and intermittent P0300-series misfire trouble codes. The factory units also struggle to maintain optimal dwell times as they age, significantly reducing combustion efficiency and power delivery in the 4.8L, 5.3L, 6.0L, and 6.2L V8 powerplants.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThese UF414-specification high-performance ignition coils are engineered to exceed factory output parameters and withstand extreme operating environments. The internal copper wire windings are upgraded with a thicker gauge and optimized turn ratio, significantly increasing the secondary voltage output over the OEM units. This ensures a hotter, more consistent spark across the plug gap, optimizing fuel burn and eliminating hesitation under high-load conditions like towing or steep inclines. The external housings are constructed from a high-dielectric epoxy and thermal-resistant polymer blend, effectively shielding the internal components from heat soak and preventing the microscopic casing cracks common with original coils. Additionally, corrosion-resistant stainless steel spring contacts guarantee zero-loss energy transfer to the spark plugs, instantly restoring throttle response and stabilizing the engine's powerband.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2019 GMC Sierra\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGen IV \u0026amp; Gen V V8 \/ GMT900 \u0026amp; K2XX\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e295-420 hp \/ 305-460 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2007-2019 GMC Sierra 1500 (4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8)\u003c\/li\u003e\n    \u003cli\u003e2007-2019 GMC Sierra 2500 HD (6.0L V8)\u003c\/li\u003e\n    \u003cli\u003e2007-2019 GMC Sierra 3500 HD (6.0L V8)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe GMC Heavy-Duty Caliber\u003c\/h3\u003e\n  \u003cp\u003eBuilt to support the rigorous demands of hauling and towing, these upgraded ignition coils ensure your Sierra's V8 maintains relentless reliability and torque delivery, eliminating downtime when you need your truck most.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234165895416,"sku":"DS-E6PMM1M63","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-sierra-1500-2500-hd-3500-hd-2007-2019-4-8l-5-3l-6-0l-6-2l-1.jpg?v=1776098785"},{"product_id":"high-performance-ignition-coil-for-gmc-yukon-2007-2014-4-8l-5-3l-6-0l-6-2l","title":"High Performance Ignition Coil for GMC Yukon (2007-2014) 4.8L 5.3L 6.0L 6.2L","description":"\u003ch2\u003eHigh-Output Ignition Coil Pack Set for 2007-2014 GMC Yukon (Gen IV LS \/ GMT900)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect-fit performance ignition coil upgrade designed to eliminate high-load misfires and maximize spark energy for GMT900 V8 platforms.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Yukon Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eFactory Gen IV LS ignition coils degrade over time due to extreme thermal cycling and localized engine bay heat soak. The OEM internal epoxy potting breaks down, increasing internal electrical resistance across the secondary windings. This degradation results in weak spark delivery under heavy load, leading to part-throttle hesitation, rough idle, increased emissions, and cylinder misfires, especially when towing heavy loads or operating in high ambient temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese UF414 high-performance replacement coils resolve OEM ignition shortcomings by utilizing upgraded primary and secondary copper windings wrapped around a highly conductive, low-resistance internal magnetic core. This advanced internal construction significantly boosts primary voltage output and spark duration compared to standard factory units. The exterior housing is molded from a high-dielectric polymer resin to resist long-term thermal degradation and prevent voltage leaks or cross-firing. By delivering a hotter, more consistent spark event, these upgraded coils ensure complete combustion, stabilizing idle vacuum, improving throttle response, and maintaining peak efficiency across the entire RPM band. The kit includes 8 coils for a complete engine overhaul.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2014 GMC Yukon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGen IV LS V8 \/ GMT900\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e295-403 hp \/ 305-417 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2014 GMC Yukon 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2007-2014 GMC Yukon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2007-2014 GMC Yukon 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2007-2014 GMC Yukon 6.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Towing Standard\u003c\/h3\u003e\n\u003cp\u003eGMT900 SUVs demand absolute operational reliability when towing or hauling heavy payloads. Upgrading to high-output ignition coils ensures consistent pulling power and complete combustion under heavy load, eliminating the risk of torque loss or flashing diagnostic trouble codes on the highway.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234166550776,"sku":"DS-ELHPDA6GI","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-yukon-2007-2014-4-8l-5-3l-6-0l-6-2l-1.jpg?v=1776098849"},{"product_id":"high-performance-ignition-coil-for-gmc-yukon-xl-1500-2500-2007-2014-5-3l-6-0l-6-2l","title":"High Performance Ignition Coil for GMC Yukon XL 1500 2500 (2007-2014) 5.3L 6.0L 6.2L","description":"\u003ch2\u003eHigh-Output Performance Ignition Coils for 2007-2014 GMC Yukon (Gen IV V8 \/ GMT900)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDirect-fit replacement ignition coil packs engineered to restore optimal spark delivery and eliminate misfires on GM Gen IV V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Yukon Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe factory Delco ignition coils on the GMT900 chassis frequently degrade after repeated heat cycles, leading to increased internal electrical resistance. Over time, the constant thermal expansion and contraction within the engine bay break down the internal epoxy potting, compromising the primary and secondary coil windings. This breakdown results in high-RPM misfires, rough idling, poor fuel economy, and flashing check engine lights under load. Hauling cargo or towing heavy trailers exacerbates heat soak, significantly accelerating OEM coil failure and reducing overall combustion efficiency.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThe UF414 high-performance replacement coils feature upgraded primary and secondary copper windings designed to exceed factory voltage output and extend spark duration. Utilizing high-dielectric epoxy and advanced internal potting techniques, these coil packs offer superior thermal management to resist severe heat soak in tight V8 engine bays. Upgraded silicone boots provide maximum insulation against voltage leaks and arching, while actively resisting degradation from oil exposure and extreme engine temperatures. By delivering a hotter, more consistent spark, these coils stabilize idle, optimize throttle response, and ensure complete combustion across the entire RPM range.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2014 GMC Yukon \/ Yukon XL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGen IV V8 (5.3L, 6.0L, 6.2L) \/ GMT900\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e320-403 hp \/ 335-417 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2007-2014 GMC Yukon 1500 (5.3L, 6.0L, 6.2L V8)\u003c\/li\u003e\n    \u003cli\u003e2007-2014 GMC Yukon XL 1500 (5.3L, 6.0L, 6.2L V8)\u003c\/li\u003e\n    \u003cli\u003e2007-2013 GMC Yukon XL 2500 (6.0L V8)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe GMC Towing Standard\u003c\/h3\u003e\n  \u003cp\u003eBuilt to handle the demanding loads and extended duty cycles expected of full-size GMT900 SUVs, ensuring consistent electrical power delivery and reliability whether towing heavy trailers or enduring daily stop-and-go driving.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234166976760,"sku":"DS-EKHNW1N2K","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-gmc-yukon-xl-1500-2500-2007-2014-5-3l-6-0l-6-2l-1.jpg?v=1776098908"},{"product_id":"high-performance-ignition-coils-for-gmc-envoy-xl-xuv-2003-2004-5-3l","title":"High Performance Ignition Coils for GMC Envoy XL XUV (2003-2004) 5.3L","description":"\u003ch2\u003eHigh-Output Ignition Coils for 2003-2004 GMC Envoy XL \/ XUV (5.3L LM4 \/ GMT370)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degrading OEM ignition coils to restore spark voltage, eliminate high-RPM misfires, and improve fuel combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Envoy Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe OEM ignition coils on the 5.3L LM4 V8 are notoriously susceptible to thermal degradation due to excessive heat soak from the aluminum engine block and their close proximity to the exhaust manifolds. Over thousands of miles of intense thermal cycling, the factory epoxy potting material becomes brittle and develops structural micro-cracks. This degradation allows moisture intrusion and internal electrical arcing, which manifests mechanically as erratic voltage drops, noticeable hesitation under heavy acceleration, rough idling, and persistent cylinder misfire codes (P0300 series). This is especially prevalent when the engine is subjected to heavy loads or extended towing conditions where under-hood temperatures peak.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese upgraded electronic ignition coils are engineered specifically to address the thermal limitations of the factory GM units. Constructed with a high-temperature epoxy formulation and premium-grade internal copper windings, they significantly reduce internal resistance and prevent the insulation breakdown that plagues older D585\/UF262 coil packs. The robust bolt-on design features precise 4-terminal blade connectors to ensure a secure, weather-tight electrical connection. By utilizing advanced internal circuitry, these coils guarantee a consistent, high-energy spark across the entire RPM range. Eliminating voltage leaks and maximizing spark dwell time restores factory throttle response, stabilizes the idle, and ensures reliable ignition during high-stress driving.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2003-2004 GMC Envoy XL \/ XUV\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e5.3L LM4 V8 \/ GMT370 \u0026amp; GMT305\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e290 hp \/ 325 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e920-1020, SKIC121, CUF262, 82863, 48658, 178-8399, GN10119, IC413, 353N, 3-566, 8263, 82633, 8286, U5183, 410001, C-593, 10457730, 19005218, D585, 140040ACC, 3IC221, 50016, 36-1205, 5113, 2505-247733, E254, C1251, 12563293, 5C1082, UF262T, 673-7101, 52-1647, EBC1347, 26C1048, IGC0127\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2003 GMC Envoy XL 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2004 GMC Envoy XL 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2004 GMC Envoy XUV 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand the demanding conditions of payload hauling and continuous towing, these precision replacement coils ensure your Envoy maintains dependable V8 power, optimal fuel economy, and factory-grade reliability without triggering a Check Engine Light.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234291593464,"sku":"DS-E7OGUVWKL","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/Ignition-Chevy-V8.jpg?v=1776103425"},{"product_id":"high-performance-ignition-coils-for-gmc-savana-1500-2500-3500-2003-2007-4-8l-5-3l-6-0l","title":"High Performance Ignition Coils for GMC Savana 1500 2500 3500 (2003-2007) 4.8L 5.3L 6.0L","description":"\u003ch2\u003eHigh-Output Ignition Coils for 2003-2007 GMC Savana (Vortec V8 \/ GMT610)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Delivers a hotter, more consistent spark to replace aging factory coils, eliminating misfires and restoring pulling power for heavy-duty hauling.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Savana Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe GMT610 chassis packages the Vortec V8 deep inside a heavily shrouded \"doghouse\" engine bay, creating an environment notorious for extreme heat soak. Over thousands of miles, the factory ignition coils suffer from severe thermal degradation. The internal epoxy potting eventually cracks, increasing electrical resistance and leading to high-rpm misfires, rough idling under load, and significantly reduced fuel efficiency. When towing or hauling heavy payloads, this compromised spark output forces the engine to work harder, burning more fuel and sapping the low-end torque essential for a commercial or heavy-use van.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThese high-performance replacement coils are engineered to resolve the thermal limitations of the factory units. By utilizing upgraded internal copper windings and high-temperature epoxy potting, these coils maintain optimal resistance values even in the sweltering heat of the Savana engine bay. The enhanced electronic blade design and 4-terminal oval connector ensure maximum voltage transfer directly to the spark plug. This translates to a fatter, hotter spark capable of fully igniting the air-fuel mixture, smoothing out the idle, eliminating hesitation, and fully restoring the engine's torque curve for demanding driving conditions. The bolt-on design ensures a hassle-free drop-in installation with zero modifications required.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2003-2007 GMC Savana 1500 \/ 2500 \/ 3500\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4.8L LR4, 5.3L LM7, 6.0L LQ4 \/ GMT610\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e270-330 hp \/ 285-373 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eD585, UF262, 920-1020, 10457730\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility \u0026amp; Cross-Reference\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2003-2007 GMC Savana 1500 (5.3L)\u003c\/li\u003e\n    \u003cli\u003e2003-2007 GMC Savana 2500 (4.8L, 5.3L, 6.0L)\u003c\/li\u003e\n    \u003cli\u003e2003-2007 GMC Savana 3500 (4.8L, 6.0L)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eReplaces OEM \u0026amp; Aftermarket Part Numbers:\u003c\/strong\u003e 920-1020, SKIC121, CUF262, 82863, 48658, 178-8399, GN10119, IC413, 353N, 3-566, 8263, 82633, 8286, U5183, 410001, C-593, 10457730, 19005218, D585, 140040ACC, 3IC221, 50016, 36-1205, 5113, 2505-247733, E254, C1251, C1251-8, 12563293, 8104577300, C1251VC, 5C1082, IC413SB, UF262T, 673-7101, 52-1647, 50016, C1251SPEC, 2-50016, EBC1347, 26C1048, IGC0127\u003c\/p\u003e\n\n  \u003ch3\u003eThe GMC Hauling Standard\u003c\/h3\u003e\n  \u003cp\u003eBuilt for the long haul, the GMC Savana demands reliable power when loaded down with cargo or pulling a heavy trailer. Upgrading your ignition coils ensures that your Vortec V8 delivers maximum torque, unyielding durability, and steadfast reliability shift after shift, mile after mile.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234292543736,"sku":"DS-EXUQGIIT5","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/Ignition-Chevy-V8.jpg?v=1776103425"},{"product_id":"high-performance-ignition-coils-for-gmc-sierra-1999-2007-4-8l-5-3l-6-0l-8-1l","title":"High Performance Ignition Coils for GMC Sierra (1999-2007) 4.8L 5.3L 6.0L 8.1L","description":"\u003ch2\u003eHigh-Output Ignition Coils for 1999-2007 GMC Sierra (Vortec V8 \/ GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eUpgrades the factory ignition system:\u003c\/strong\u003e Replaces weak factory coil packs to eliminate high-load misfires and ensure consistent spark delivery across 4.8L, 5.3L, 6.0L, and 8.1L engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Sierra Ignition Shortcomings\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition coils on GMT800 trucks are susceptible to thermal degradation over high-mileage heat cycles. Mounted directly above the exhaust manifolds, OEM coil packs suffer from severe heat soak, which exponentially increases internal electrical resistance. Over time, the primary and secondary winding insulation breaks down, leading to internal voltage leaks. This manifests as weak spark energy, intermittent misfires under heavy towing, rough idling, and reduced fuel economy. Additionally, older OEM potting compounds crack in harsh engine bay environments, allowing moisture ingress that accelerates failure and triggers persistent P0300-series misfire codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese high-performance ignition coils resolve factory voltage leaks through robust upgraded internal components. Featuring heavy-gauge copper wire for both primary and secondary windings, these coils significantly decrease resistance while maximizing voltage output directly to the spark plug. The housing is constructed from high-dielectric epoxy and a thermal-shock-resistant polymer, effectively shielding the internal electronics from exhaust manifold heat soak and extreme high-frequency engine vibration. By delivering a hotter, more concentrated spark, this direct bolt-on upgrade optimizes the combustion event. This immediately stabilizes idle quality, restores lost engine horsepower, and prevents spark blowout under extreme towing or high-load conditions.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1999-2007 GMC Sierra\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVortec V8 (4.8L, 5.3L, 6.0L, 8.1L) \/ GMT800\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e255-345 hp \/ 285-455 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eD585, UF262, 920-1020, 10457730, SKIC121, C1251\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1999-2007 GMC Sierra 1500 (4.8L V8)\u003c\/li\u003e\n  \u003cli\u003e1999-2007 GMC Sierra 1500 (5.3L V8)\u003c\/li\u003e\n  \u003cli\u003e1999-2007 GMC Sierra 1500HD \/ 2500 \/ 2500HD (6.0L V8)\u003c\/li\u003e\n  \u003cli\u003e2001-2007 GMC Sierra 2500HD \/ 3500 (8.1L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Hauling Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the rigors of heavy hauling and demanding workloads, these upgraded ignition coils ensure your GMT800 maintains reliable power delivery. Whether you are towing heavy equipment or logging continuous daily highway miles, expect restored throttle response, smooth operation, and relentless long-term durability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234293592312,"sku":"DS-EZYS2DY8J","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/Ignition-Chevy-V8.jpg?v=1776103425"},{"product_id":"high-performance-ignition-coils-for-gmc-yukon-2000-2006-4-8l-5-3l-6-0l","title":"High Performance Ignition Coils for GMC Yukon (2000-2006) 4.8L 5.3L 6.0L","description":"\u003ch2\u003eHigh-Output Ignition Coils for 2000-2006 GMC Yukon (Vortec Gen III \/ GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Replaces aging or failing factory coil packs to restore optimal spark energy, eliminate misfires under heavy load, and ensure consistent combustion across all cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Yukon Thermal Degradation Problem\u003c\/h3\u003e\n\u003cp\u003eThe factory Gen III Vortec ignition coils, particularly on high-mileage GMT800 platforms, suffer from severe thermal degradation. Positioned directly above the exhaust manifolds, the OEM plastic housings undergo thousands of extreme heat cycles. Over time, this thermal stress causes micro-cracking in the epoxy potting compound, allowing moisture intrusion and internal arcing. Symptoms manifest as intermittent P0300 random misfire codes, rough idling, degraded throttle response, and significant power loss during towing or heavy acceleration. The factory internal windings also break down as resistance builds, leading to noticeably weak spark delivery at higher RPMs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese replacement ignition coils are engineered to exceed factory Delphi and ACDelco specifications. Featuring upgraded copper-core primary and secondary windings alongside improved magnetic steel laminations, they deliver superior primary voltage saturation and faster recovery times between firing events. The housing is constructed from a high-temperature dielectric polymer that actively resists thermal breakdown and prevents the housing fractures common to OEM units. An advanced epoxy resin potting isolates the internal circuitry against extreme engine bay temperatures and severe chassis vibration. The direct-fit, bolt-on design utilizes standard oval female connectors and 4-blade male terminals for seamless integration with the factory GMT800 wiring harness, ensuring zero-splice installation and immediate restoration of drivability.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2000-2006 GMC Yukon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVortec Gen III (LR4\/LM7\/LQ4) \/ GMT800\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e275-345 hp \/ 290-380 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e920-1020, SKIC121, CUF262, 82863, 48658, 178-8399, GN10119, IC413, 353N, 3-566, 8263, 82633, 8286, U5183, 410001, C-593, 10457730, 19005218, D585, 140040ACC, 3IC221, 50016, 36-1205, 5113, 2505-247733, E254, C1251, C1251-8, 12563293, 8104577300, C1251VC, 5C1082, IC413SB, UF262T, 673-7101, 52-1647, 50016, C1251SPEC, 2-50016, EBC1347, 26C1048, IGC0127\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2006 GMC Yukon 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2000-2006 GMC Yukon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2000-2006 GMC Yukon 6.0L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the demands of the GMT800 chassis, these coils ensure reliable ignition performance whether you are daily driving, hauling heavy payloads, or towing cross-country, eliminating annoying CEL misfire codes and restoring true heavy-duty reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234297196792,"sku":"DS-EH7YHBXLT","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/Ignition-Chevy-V8.jpg?v=1776103425"},{"product_id":"high-performance-ignition-coils-for-gmc-w3500-forward-2003-5-7l","title":"High Performance Ignition Coils for GMC W3500 Forward (2003) 5.7L","description":"\u003ch2\u003eHigh-Output Ignition Coils for GMC W3500 Forward (5.7L L31 \/ W-Series COE)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngineered to replace degrading factory ignition components, these high-performance electronic ignition coils deliver increased spark energy to restore heavy-duty towing capacity and eliminate under-load misfires.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock W3500 Thermal Degradation\u003c\/h3\u003e\n\u003cp\u003eThe GMC W3500 cab-over configuration packages the 5.7L V8 in a highly constrained, low-airflow environment, subjecting ignition components to severe and continuous heat soak. Over thousands of commercial miles, the constant thermal cycling breaks down the factory coil's internal epoxy potting and primary copper windings. This thermal degradation leads to voltage leaks, weak spark delivery, and intermittent misfires, especially when the truck is hauling maximum payload or climbing steep grades. The result is a subtle hesitation, reduced throttle response, and ultimately, unburned fuel triggering efficiency losses and reduced fleet reliability.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese bolt-on replacement coils are manufactured with high-dielectric epoxy resin and upgraded internal copper windings to combat harsh engine bay environments. The robust oval-connector housing and superior potting compound protect the delicate internal circuitry from the aggressive thermal shock found in the W3500 COE engine bay. By optimizing the primary-to-secondary winding ratio, these coils produce a substantially higher millijoule spark output. This hotter, longer-duration spark prevents spark blowout under heavy load, ensuring complete combustion across the RPM range. The result is a stabilized idle, restored low-end torque for moving heavy loads, and reliable long-haul operation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGMC W3500 Forward (2003)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e5.7L V8 L31 \/ W-Series COE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e255 hp \/ 330 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e920-1020, D585, UF262\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e920-1020\u003c\/li\u003e\n\u003cli\u003eSKIC121\u003c\/li\u003e\n\u003cli\u003eCUF262\u003c\/li\u003e\n\u003cli\u003e82863\u003c\/li\u003e\n\u003cli\u003e48658\u003c\/li\u003e\n\u003cli\u003e178-8399\u003c\/li\u003e\n\u003cli\u003eGN10119\u003c\/li\u003e\n\u003cli\u003eIC413\u003c\/li\u003e\n\u003cli\u003e353N\u003c\/li\u003e\n\u003cli\u003e3-566\u003c\/li\u003e\n\u003cli\u003e8263\u003c\/li\u003e\n\u003cli\u003e82633\u003c\/li\u003e\n\u003cli\u003e8286\u003c\/li\u003e\n\u003cli\u003eU5183\u003c\/li\u003e\n\u003cli\u003e410001\u003c\/li\u003e\n\u003cli\u003eC-593\u003c\/li\u003e\n\u003cli\u003e10457730\u003c\/li\u003e\n\u003cli\u003e19005218\u003c\/li\u003e\n\u003cli\u003eD585\u003c\/li\u003e\n\u003cli\u003e140040ACC\u003c\/li\u003e\n\u003cli\u003e3IC221\u003c\/li\u003e\n\u003cli\u003e50016\u003c\/li\u003e\n\u003cli\u003e36-1205\u003c\/li\u003e\n\u003cli\u003e5113\u003c\/li\u003e\n\u003cli\u003e2505-247733\u003c\/li\u003e\n\u003cli\u003eE254\u003c\/li\u003e\n\u003cli\u003eC1251\u003c\/li\u003e\n\u003cli\u003eC1251-8\u003c\/li\u003e\n\u003cli\u003e12563293\u003c\/li\u003e\n\u003cli\u003e8104577300\u003c\/li\u003e\n\u003cli\u003eC1251VC\u003c\/li\u003e\n\u003cli\u003e5C1082\u003c\/li\u003e\n\u003cli\u003eIC413SB\u003c\/li\u003e\n\u003cli\u003eUF262T\u003c\/li\u003e\n\u003cli\u003e673-7101\u003c\/li\u003e\n\u003cli\u003e52-1647\u003c\/li\u003e\n\u003cli\u003e50016\u003c\/li\u003e\n\u003cli\u003eC1251SPEC\u003c\/li\u003e\n\u003cli\u003e2-50016\u003c\/li\u003e\n\u003cli\u003eEBC1347\u003c\/li\u003e\n\u003cli\u003e26C1048\u003c\/li\u003e\n\u003cli\u003eIGC0127\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Commercial Caliber\u003c\/h3\u003e\n\u003cp\u003eWhen operating a commercial W-Series COE, downtime is not an option. Upgrading to these thermally stable ignition coils ensures your 5.7L engine maintains consistent torque delivery, maximizing payload efficiency and keeping your fleet on the road.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234299359480,"sku":"DS-E14I2AIS5","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/Ignition-Chevy-V8.jpg?v=1776103425"},{"product_id":"ignition-coil-iridium-spark-plugs-for-gmc-canyon-2007-2012-3-7l-i5","title":"Ignition Coil \u0026 Iridium Spark Plugs for GMC Canyon (2007-2012) 3.7L I5","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plugs for 2007-2012 GMC Canyon (LLR \/ GMT355)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degrading OEM coil packs and worn spark plugs to restore optimal combustion efficiency, eliminate misfires, and stabilize idle in the 3.7L Atlas inline-five engine.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Canyon Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eFactory ignition coils on the GMT355 platform frequently suffer from thermal degradation due to their mounting location directly above the cylinder head. Over thousands of heat cycles, the epoxy potting compound breaks down, leading to micro-cracking in the primary and secondary windings. This creates internal electrical resistance, reducing spark energy output and triggering P0300-series random misfire codes. Furthermore, standard factory plugs erode under high-load conditions, widening the spark gap. This results in delayed flame front propagation, poor fuel economy, and noticeable power loss when towing or climbing steep grades.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis complete Aero ignition suite addresses OEM shortcomings by pairing direct-replacement, high-resistance ignition coils with precision-gapped Iridium spark plugs. The upgraded coils feature superior thermal epoxy and enhanced copper windings to step up voltage output without excessive heat retention, maintaining a consistent spark under continuous high-load truck applications. The Iridium center electrodes offer an extremely high melting point, drastically reducing electrode wear and maintaining a precise gap over an extended service life. The result is a concentrated, high-energy spark that promotes a faster, more complete combustion event, effectively restoring factory horsepower and torque metrics while minimizing unburned hydrocarbon emissions.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2012 GMC Canyon\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3.7L LLR I5 \/ GMT355\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e242 hp \/ 242 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eIC78051257057810010305\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2007 GMC Canyon 3.7L I5\u003c\/li\u003e\n    \u003cli\u003e2008 GMC Canyon 3.7L I5\u003c\/li\u003e\n    \u003cli\u003e2009 GMC Canyon 3.7L I5\u003c\/li\u003e\n    \u003cli\u003e2010 GMC Canyon 3.7L I5\u003c\/li\u003e\n    \u003cli\u003e2011 GMC Canyon 3.7L I5\u003c\/li\u003e\n    \u003cli\u003e2012 GMC Canyon 3.7L I5\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n  \u003cp\u003eDesigned for the rigorous demands of the Atlas I5 powertrain, this ignition upgrade ensures your GMT355 maintains reliable towing capability, consistent idle quality, and dependable all-weather starting performance under heavy workloads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48266172465400,"sku":"DS-ERSGXCHDC","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-gmc-canyon-2007-2012-3-7l-i5-1.jpg?v=1776806898"},{"product_id":"ignition-coil-iridium-spark-plugs-for-gmc-acadia-2007-2023-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for GMC Acadia (2007-2023) 3.6L V6","description":"\u003ch2\u003eDirect Replacement Ignition Coils \u0026amp; Iridium Spark Plugs for 2007-2023 GMC Acadia \u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces worn factory ignition components to restore optimal combustion, eliminate misfires, and improve fuel efficiency.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Stock Acadia Ignition System Degradation\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition coils and spark plugs on the 3.6L High Feature V6 are subjected to extreme thermal cycling. Over time, the internal epoxy of the OEM coils breaks down due to heat soak, causing micro-cracks and voltage leaks. Standard spark plug electrodes erode, increasing the spark gap. This widened gap demands higher voltage from weakened coils, creating a compounding failure cycle resulting in rough idling, hesitation, and P0300-P0306 misfire codes. The transverse engine layout in the Lambda and C1XX chassis further restricts airflow to the rear bank, accelerating thermal degradation on cylinders 1, 3, and 5.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis ignition overhaul addresses these weaknesses using upgraded materials and tighter tolerances. The ignition coils feature high-temperature-resistant epoxy and reinforced dielectric boots to prevent voltage tracking and withstand severe firewall heat. High-purity copper windings ensure consistent energy transfer for a robust spark. Pairing these coils with Iridium spark plugs guarantees long-term reliability. Iridium's high melting point allows for a fine-wire center electrode, concentrating the electrical field for a stronger spark at a lower voltage. This reduces strain on the coils while ensuring complete combustion, resulting in a stabilized idle and restored throttle response.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e2007-2023 GMC Acadia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3.6L High Feature V6 (LY7\/LLT\/LGX) \/ Lambda \u0026amp; C1XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e275-310 hp \/ 251-271 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3340078J00, 3340078J01, 3340078J02, 3340078J03, CLS1226, V40-70-0092, 921-2109, 2505-301881, 673-7300, C-761, IC649\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2007-2023 GMC Acadia 3.6L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the towing and daily hauling demands of your Acadia, this ignition kit delivers the uncompromising durability and reliable performance required for heavy-duty family transport.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303184937208,"sku":"DS-EVO04SMX5","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-gmc-acadia-2007-2023-3-6l-v6-1.jpg?v=1777577337"},{"product_id":"ignition-coil-iridium-spark-plugs-for-gmc-canyon-2015-2016-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for GMC Canyon (2015-2016) 3.6L V6","description":"\u003ch2\u003eReliable Ignition Coil \u0026amp; Iridium Spark Plugs for 2015-2016 GMC Canyon \u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis complete ignition service kit replaces the degrading factory coils and plugs to restore optimal spark energy, mitigate misfires, and stabilize idle under heavy load.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Stock Canyon Thermal Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory ignition components on the GMT31XX platform, particularly the LFX 3.6L V6, are prone to heat degradation over extended mileage. Prolonged thermal cycling within the engine bay gradually breaks down the internal epoxy resin of the OEM ignition coils, leading to micro-cracking and parasitic voltage leaks. Simultaneously, factory spark plug electrodes wear down, inevitably widening the spark gap. This combined deterioration results in erratic spark timing, rough idling, hesitation under heavy engine load, and pending P0300-series misfire diagnostic trouble codes, ultimately compromising fuel efficiency and drivability.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 12-piece ignition overhaul kit corrects OEM deficiencies by utilizing high-dielectric epoxy and reinforced polymer housings in the ignition coils to seamlessly withstand extreme thermal loads. The primary and secondary copper windings are engineered to deliver a consistent, high-voltage output for complete, efficient combustion. Paired with advanced laser-welded iridium spark plugs, the system ensures a highly concentrated spark. The ultra-fine iridium center electrode significantly reduces the voltage required to jump the spark gap, while offering superior resistance to electrical erosion and fouling. This ensures consistent engine performance, immediate throttle response, and extended service intervals.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e2015-2016 GMC Canyon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eLFX \/ GMT31XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e305 hp \/ 269 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3340078J00, 3340078J01, 3340078J02, 3340078J03, CLS1226, V40-70-0092, 921-2109, 2505-301881, 673-7300, C-761, IC649\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2015-2016 GMC Canyon Base 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2015-2016 GMC Canyon SLE 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2015-2016 GMC Canyon SLT 3.6L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe GMC Truck Durability\u003c\/h3\u003e\n\u003cp\u003eMaintaining robust ignition health is critical for the towing and payload demands of a mid-size truck, ensuring reliable torque delivery when pulling heavy loads without the risk of misfire-induced limp mode or power loss.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303185985784,"sku":"DS-E7FENHTDV","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-gmc-canyon-2015-2016-3-6l-v6-1.jpg?v=1777577389"},{"product_id":"ignition-coil-iridium-spark-plugs-for-gmc-terrain-2010-2017-3-0l-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for GMC Terrain (2010-2017) 3.0L 3.6L V6","description":"\u003ch2\u003eDirect-Replacement Ignition Coil \u0026amp; Iridium Spark Plugs for 2010-2017 GMC Terrain \u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRestoring spark energy and combustion efficiency:\u003c\/strong\u003e This comprehensive ignition overhaul kit replaces degraded OEM ignition coils and worn spark plugs to eliminate misfires, rough idling, and hesitation under load.\u003c\/p\u003e\n\u003ch3\u003eThe Stock Terrain Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eOver time, the factory High Feature V6 ignition system is subjected to severe thermal cycling and engine bay heat soak, particularly in the tightly packed GMT191 chassis. This constant heat degrades the epoxy insulation within the factory ignition coils, leading to internal voltage leaks and primary winding resistance shifts. Simultaneously, standard or aged spark plugs experience electrode erosion, increasing the spark gap. This forces the ignition coils to work harder to jump the gap, creating excessive secondary voltage requirements that accelerate coil failure and result in cylinder misfires, reduced fuel economy, and poor throttle response.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis upgraded ignition kit resolves these issues by utilizing advanced construction materials and modern plug design. The replacement ignition coils feature upgraded dielectric epoxy resins and high-grade copper wire windings, ensuring consistent voltage output and resistance to thermal breakdown even under heavy load. Paired with laser-welded iridium spark plugs, the system benefits from an ultra-fine center electrode that requires less secondary voltage to ignite the air-fuel mixture. The iridium alloy provides exceptional resistance to spark erosion, maintaining optimal gap spacing for long-term reliability. This combination ensures a highly concentrated, reliable spark, restoring the LFX and LF1 engine's factory power delivery and smoothing out the idle.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e2010-2017 GMC Terrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eLF1, LFX V6 \/ GMT191 (Theta)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e264 - 301 hp \/ 222 - 272 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3340078J00, 3340078J01, 3340078J02, 3340078J03, CLS1226, V40-70-0092, 921-2109, 2505-301881, 673-7300, C-761, IC649\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2010 GMC Terrain 3.0L V6\u003c\/li\u003e\n\u003cli\u003e2011 GMC Terrain 3.0L V6\u003c\/li\u003e\n\u003cli\u003e2012 GMC Terrain 3.0L V6\u003c\/li\u003e\n\u003cli\u003e2013 GMC Terrain 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2014 GMC Terrain 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2015 GMC Terrain 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2016 GMC Terrain 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2017 GMC Terrain 3.6L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for the rigorous demands of daily driving and highway cruising, this ignition setup ensures your Terrain maintains consistent, reliable towing power without triggering unneeded check engine lights or sacrificing baseline fuel economy.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303188934904,"sku":"DS-EW0CIQCN0","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-gmc-terrain-2010-2017-3-0l-3-6l-v6-1.jpg?v=1777577432"},{"product_id":"ignition-coil-iridium-spark-plugs-wire-gmc-sierra-1500-limited-2014-2020-5-3l-6-2l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs \u0026 Wire GMC Sierra 1500 Limited (2014-2020) 5.3L 6.2L V8","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2014-2020 GMC Sierra\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This complete ignition service kit replaces degraded factory coils, plugs, and wires to restore combustion efficiency, eliminate misfires, and stabilize idle quality in your 5.3L or 6.2L EcoTec3 V8.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Sierra Ignition Shortcomings\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition system on the K2XX and T1XX chassis Sierra is highly susceptible to thermal degradation and electrical resistance over high-mileage heat cycles. The OEM coils utilize standard winding densities that eventually break down, leading to voltage leaks and weak spark propagation. Combined with deteriorating factory spark plug wires lacking adequate thermal shielding against exhaust manifold heat, this resistance manifests as engine hesitation, poor gas mileage, cylinder misfires, and illuminated CEL or VSC warnings under heavy loads or towing conditions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis upgraded ignition package delivers a 20% increase in spark energy over OE parameters, utilizing coils built with high-density copper windings and an epoxy-potted internal construction to prevent moisture intrusion and vibration damage. Pushing up to 26,000 volts with a 61:1 turns ratio, these coils ensure complete and efficient fuel burn. The included high-quality iridium spark plugs (41-114) feature an ultra-high melting point for consistent, powerful arcs, while the 8mm silicone spark plug wires feature integrated heat shields to withstand extreme exhaust temperatures without degrading electrical conductivity. This optimized spark delivery translates to restored horsepower, sharper throttle response, and a rock-solid idle.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2014-2020 GMC Sierra 1500 (Including Limited)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eEcoTec3 L83, L86, L87 V8 \/ K2XX, T1XX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e355 - 420 hp \/ 383 - 460 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF742 (Coils), 41-114 (Plugs), 748UU (Wires)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2014 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2015 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2016 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2017 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2018 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2019 GMC Sierra 1500 Limited 5.3L \/ 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2020 GMC Sierra 1500 5.3L \/ 6.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eWhether hauling heavy payloads or navigating daily commutes, a robust ignition system is critical for your V8 truck's reliability. This comprehensive tune-up kit ensures your Sierra delivers consistent towing power, optimal fuel economy, and dependable cross-country durability without the risk of misfire-induced downtime.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48477764288760,"sku":"DS-EXKW1HCNS","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-wire-gmc-sierra-1500-limited-2014-2020-5-3l-6-2l-v8-1.jpg?v=1779380137"},{"product_id":"ignition-coil-iridium-spark-plugs-wire-gmc-sierra-2500-hd-3500-hd-2020-6-6l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs \u0026 Wire GMC Sierra 2500 HD 3500 HD (2020) 6.6L V8","description":"\u003ch2\u003eHigh-Energy Ignition Coil \u0026amp; Iridium Plug Kit for GMC Sierra 2500\/3500 HD\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eReplaces degraded OEM ignition components to restore optimal spark energy, eliminate RFI interference, and cure misfires on the 6.6L L8T V8 engine.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Sierra HD Ignition Breakdown\u003c\/h3\u003e\n  \u003cp\u003eUnder heavy thermal loads from constant towing or prolonged idling, the factory ignition coils and spark plug wires on the T1XX Sierra HD inevitably break down. The stock coil's internal epoxy degrades over time, altering primary and secondary resistance values. This causes voltage leaks and weakened spark delivery. Inadequate spark results in poor combustion efficiency within the L8T cylinders, directly manifesting as sluggish throttle response, random misfires, check engine lights (CEL), engine hesitation, and noticeable drops in fuel economy.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis comprehensive ignition overhaul kit is engineered to provide a 20% increase in spark energy over the OE factory components. The upgraded UF742 coils utilize premium high-conductivity copper windings encased in advanced, heat-resistant epoxy to prevent premature thermal breakdown. Capable of stepping up a standard 12V input to over 25,000V (maximum 26,000V with a precise 61:1 turns ratio), they deliver a robust and highly consistent spark. The included 41-114 iridium spark plugs feature an ultra-fine center electrode for superior ignitability, exceptional conductivity, and a high melting point to maximize complete combustion. Coupled with 8mm high-temperature silicone spark plug wires, protective heat shields, and wire separators, this system guarantees maximum voltage transfer to the chamber while completely eliminating RFI electronic interference.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2020 GMC Sierra 2500 HD \/ 3500 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eL8T V8 \/ T1XX\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e401 hp \/ 464 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF-742 \/ 41-114 \/ 748UU\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2020 GMC Sierra 2500 HD 6.6L V8 Gas\u003c\/li\u003e\n    \u003cli\u003e2020 GMC Sierra 3500 HD 6.6L V8 Gas\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Heavy-Duty Caliber\u003c\/h3\u003e\n  \u003cp\u003eBuilt for the rigorous demands of heavy towing and high-payload hauling, this ignition kit ensures reliable, misfire-free power delivery when pulling heavy loads up steep grades, preventing drivability complaints and pre-ignition.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48477773267192,"sku":"DS-E87LPKE5J","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-wire-gmc-sierra-2500-hd-3500-hd-2020-6-6l-v8-1.jpg?v=1779380183"},{"product_id":"ignition-coil-iridium-spark-plugs-wire-gmc-yukon-yukon-xl-2015-2020-5-3l-6-2l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs \u0026 Wire GMC Yukon Yukon XL (2015-2020) 5.3L 6.2L V8","description":"\u003ch2\u003eHigh-Energy Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2015-2020 GMC Yukon\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect Bolt-On Ignition Upgrade:\u003c\/strong\u003e Replaces degraded factory coils, wires, and spark plugs to restore optimal combustion, eliminate misfires, and stabilize idle across the EcoTec3 powerband.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Yukon L83 Ignition Shortcomings\u003c\/h3\u003e\n\u003cp\u003eOver time, the factory ignition components on the GMT K2XX chassis are subjected to extreme underhood temperatures. The original coil packs often suffer from internal epoxy degradation and secondary winding failure, leading to weakened spark output. Furthermore, OEM spark plug wires experience insulation breakdown, causing voltage leaks, cross-firing, and increased electrical resistance. Combined with carbon-fouled factory spark plugs, this degradation manifests as rough idling, hesitation under heavy towing loads, engine twitch, and intermittent misfires that trigger Check Engine Light (CEL) and VSC warning codes. This efficiency loss severely handicaps the 5.3L's fuel economy and low-end torque.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition overhaul kit is engineered to deliver a 20% increase in spark energy over standard factory coils. The replacement UF742 coils feature high-purity copper internal windings sealed in premium epoxy, generating up to 26,000 volts with a 61:1 turns ratio for a significantly hotter spark. The included 8mm silicone spark plug wires feature high-temperature fiberglass heat shields to prevent thermal breakdown from exhaust manifold heat soak. Additionally, the 41-114 Iridium spark plugs utilize an ultra-fine wire center electrode with an exceptionally high melting point to maximize combustion efficiency. This combination ensures complete cylinder burning, eliminating misfires and restoring the raw towing torque your L83 engine demands.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2015-2020 GMC Yukon \u0026amp; Yukon XL\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eEcoTec3 L83 5.3L V8 \/ GMT K2XX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e355 hp \/ 383 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF-742 \/ 41-114 \/ 748UU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2015-2020 GMC Yukon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2015-2020 GMC Yukon 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2015-2020 GMC Yukon XL 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2015-2020 GMC Yukon XL 6.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the rigorous demands of towing and hauling, this heavy-duty ignition upgrade ensures your GMT K2XX powertrain maintains relentless reliability and consistent power delivery, regardless of payload or demanding terrain.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48477782343928,"sku":"DS-EENYYMD2Y","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-wire-gmc-yukon-yukon-xl-2015-2020-5-3l-6-2l-v8-1.jpg?v=1779380226"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/collections\/GMC-Canyon-speed_24b18ca4-24d1-4c98-8d8e-5a69a393b5c8.jpg?v=1779380117","url":"https:\/\/performancechiptuning.com\/collections\/gmc-ignition.oembed","provider":"Performance Chip Tuning","version":"1.0","type":"link"}