{"product_id":"ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2015-2016-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for Chevrolet Colorado (2015-2016) 3.6L V6","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plugs for 2015-2016 Chevrolet Colorado (LFX \/ GMT31XX)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eRestores critical firing voltage and ensures complete combustion for the 3.6L LFX engine.\u003c\/strong\u003e This direct-replacement ignition coil and iridium spark plug kit resolves common misfires, rough idling, and reduced fuel economy inherent to aging, high-mileage ignition systems.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Colorado Ignition Degradation\u003c\/h3\u003e\n  \u003cp\u003eThe factory ignition components on the 3.6L LFX V6 are prone to significant thermal degradation over time. Positioned in a high-heat environment, the OEM coil packs experience dialectic breakdown and epoxy micro-cracking, leading to parasitic voltage leaks. Simultaneously, standard spark plug electrodes erode under the intense combustion pressures of the LFX engine, widening the spark gap. This creates a cascading failure effect: the coils overwork to jump the larger gap, increasing internal resistance, overheating the primary windings, and ultimately resulting in primary circuit failure, cylinder misfires, and a flashing Check Engine Light under heavy load or towing conditions.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis comprehensive replacement kit tackles the thermal and electrical shortcomings of the OEM system directly. The included ignition coils are manufactured with high-dielectric epoxy and upgraded copper windings, drastically reducing electrical resistance and preventing voltage dissipation even under severe under-hood heat soak. The kit pairs these upgraded coils with premium iridium-tipped spark plugs. Iridium is significantly harder and more heat-resistant than standard platinum or copper, allowing for a concentrated, ultra-fine center electrode. This requires less firing voltage to bridge the gap, relieving stress on the new coils while guaranteeing a consistent, powerful spark event. The result is restored 305 horsepower output, smoothed idle characteristics, and optimal fuel burn efficiency.\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;\"\u003e2015-2016 Chevrolet Colorado\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\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2015 Chevrolet Colorado 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2016 Chevrolet Colorado 3.6L V6\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n  \u003cp\u003eEngineered for the rigorous demands of mid-size truck duty, this ignition kit ensures your Colorado maintains the reliable pulling power and consistent torque delivery required for towing, hauling, and off-road capability without the risk of high-load misfires.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303173501176,"sku":"DS-EWLRRIJG9","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-chevrolet-colorado-2015-2016-3-6l-v6-1.jpg?v=1777577111","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2015-2016-3-6l-v6","provider":"Performance Chip Tuning","version":"1.0","type":"link"}