{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-regal-2011-2017-2-4l","title":"Ignition Coil and Iridium Spark Plugs for Buick Regal (2011-2017) 2.4L","description":"\u003ch2\u003eDirect-Fit High-Dielectric Ignition Coil and Iridium Spark Plug Kit for 2011-2017 Buick Regal\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect Replacement Ignition Service Kit:\u003c\/strong\u003e Engineered specifically to resolve secondary ignition breakdown, cylinder misfires, and rough idle in naturally aspirated and eAssist 2.4L Ecotec engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Regal Coil Insulation Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory ignition coils on the 2.4L Ecotec platform endure severe thermal cycling directly above the cylinder head. Over time, heat soak degrades the internal epoxy encapsulation and silicone spark plug boots, leading to dielectric breakdown and micro-arcing. Simultaneously, factory spark plugs suffer from gap widening and center electrode erosion, increasing the required ionization voltage. This extra electrical load overstresses the coil driver circuitry, triggering P0300 through P0304 misfire codes, hesitations under load, and reduced fuel efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive overhaul kit features four high-grade coil-on-plug units coupled with fine-wire laser-welded iridium spark plugs. The ignition coils are manufactured with high-conductivity oxygen-free copper primary and secondary windings, shielded in high-dielectric PBT housing to resist voltage tracking and thermal breakdown. The paired iridium plugs provide a higher melting point and lower electrical resistance, producing a focused, stable spark kernel under high combustion chamber pressures for complete flame propagation.\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;\"\u003e2011-2017 Buick Regal\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;\"\u003e2.4L Ecotec (LAF \/ LEA \/ LUK) \/ GM Epsilon II\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;\"\u003e182 hp \/ 172 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;\"\u003eUF491, 12578224, 12638824, 12578244, C1552, D517A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011 Buick Regal (2.4L L4 Gas - CXL, Base)\u003c\/li\u003e\n  \u003cli\u003e2012 Buick Regal (2.4L L4 Gas \/ 2.4L L4 Electric\/Gas - Base, Premium)\u003c\/li\u003e\n  \u003cli\u003e2013 Buick Regal (2.4L L4 Gas \/ 2.4L L4 Electric\/Gas - Base, Premium)\u003c\/li\u003e\n  \u003cli\u003e2014 Buick Regal (2.4L L4 Electric\/Gas - Base, Premium)\u003c\/li\u003e\n  \u003cli\u003e2015 Buick Regal (2.4L L4 Electric\/Gas - Base, Premium)\u003c\/li\u003e\n  \u003cli\u003e2016 Buick Regal (2.4L L4 Electric\/Gas - Base, Premium)\u003c\/li\u003e\n  \u003cli\u003e2017 Buick Regal (2.4L L4 Gas - Base, Sport Touring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Smoothness Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned for exact OEM calibration match, this kit restores smooth idle quality, throttle response, and fuel economy with zero check-engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448252338424,"sku":"DS-EJNWNHVN1","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-buick-regal-2011-2017-2-4l-1.jpg?v=1788637661","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-buick-regal-2011-2017-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}