{"product_id":"ignition-coil-iridium-spark-plugs-for-bmw-m3-2008-2013-4-0l","title":"Ignition Coil + Iridium Spark Plugs for BMW M3 (2008-2013) 4.0L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2008-2013 BMW M3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Iridium Spark Plug Kit restores factory combustion efficiency and stabilizes high-RPM spark delivery on the 2008-2013 BMW M3 to eliminate misfires and restore throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock BMW M3 High-RPM Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe naturally aspirated \u003cstrong\u003eS65\u003c\/strong\u003e V8 revs to an 8,400 RPM redline, demanding rapid coil charge times and generating severe thermal soak within the enclosed spark plug wells. Over heat cycles, factory coils suffer internal dielectric breakdown and secondary winding fatigue. Simultaneously, standard plug electrodes erode, widening the gap and forcing the ignition coils to draw higher primary amperage. This degradation destabilizes the \u003cstrong\u003eS65B40\u003c\/strong\u003e ionic current knock-detection circuit, triggering check engine lights, rough idling, and engine failsafe (limp) mode.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete ignition overhaul kit pairs eight precision-wound, direct-fit ignition coils with laser-welded iridium spark plugs designed for high-stress operation. The replacement coils feature reinforced thermal-resistant PBT housings and high-conductivity copper windings to prevent arc-through and energy loss under load. The included fine-wire iridium plugs resist spark erosion, maintaining tight gap tolerances and lowering required firing voltage to safeguard the primary ignition circuit and ensure clean flame-front 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; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2008-2013 BMW M3\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eS65B40\u003c\/strong\u003e 4.0L V8 \/ \u003cstrong\u003eE90, E92, E93\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e414 hp \/ 295 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eUF597\u003c\/strong\u003e, \u003cstrong\u003e9409\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2008-2011 BMW M3 Sedan (E90) 4.0L V8\u003c\/li\u003e\n  \u003cli\u003e2008-2013 BMW M3 Coupe (E92) 4.0L V8\u003c\/li\u003e\n  \u003cli\u003e2008-2013 BMW M3 Convertible (E93) 4.0L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the E90 \/ E92 \/ E93 M3?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2008-2013 BMW M3 equipped with the \u003cstrong\u003eS65\u003c\/strong\u003e 4.0L V8 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the included iridium spark plugs require pre-gapping before installation?\u003c\/strong\u003e\u003cbr\u003e No, these iridium plugs are pre-gapped to factory specifications; altering the gap manually can fracture the fine-wire iridium electrode tip.\u003c\/p\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eThe high-compression \u003cstrong\u003eS65\u003c\/strong\u003e engine relies heavily on accurate secondary ignition resistance to calculate combustion metrics through the factory MSS60 DME; this matched kit maintains OEM resistance values to prevent false misfire codes and preserve factory driving dynamics.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50622911906040,"sku":"DS-E1LPGZ6KF","price":384.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-bmw-m3-2008-2013-4-0l-1.jpg?v=1790276776","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-bmw-m3-2008-2013-4-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}