{"product_id":"ignition-coil-spark-plugs-for-bmw-550i-550i-xdrive-2011-2013-4-4l-v8","title":"Ignition Coil \u0026 Spark Plugs for BMW 550i 550i xDrive (2011-2013) 4.4L V8","description":"\u003ch2\u003eDirect-Replacement Ignition Coil \u0026amp; Spark Plugs for 2011-2013 BMW 5 Series\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRestoring optimal combustion and eliminating misfires:\u003c\/strong\u003e This comprehensive ignition service kit replaces degraded factory coils and fouled plugs to restore factory power delivery and smooth idling.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock F10 Ignition Shortcomings\u003c\/h3\u003e\n\u003cp\u003eThe N63 4.4L twin-turbo V8 engine is notoriously harsh on its ignition components due to extreme thermal loads generated by the 'hot-V' turbocharger layout. Intense under-hood heat bakes the factory ignition coil housings, causing micro-cracks in the epoxy potting. This degradation allows high voltage to arc directly to the cylinder head rather than bridging the spark plug gap, resulting in heavy-load hesitation, rough idling, and misfire codes. Additionally, standard spark plugs suffer electrode erosion under these high cylinder pressures, widening the gap and heavily straining the aging factory coils.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis kit revitalizes the N63 ignition sequence, combining eight high-output coils with matched platinum spark plugs. The upgraded coils feature thermal-resistant silicone boots and high-dielectric epoxy resin to combat severe heat soak. Inside, tightly wound copper windings maximize voltage transfer to prevent spark blowout under high boost. The included platinum spark plugs utilize a durable fine-wire center electrode that resists high-temperature erosion. This promotes a highly concentrated spark kernel for efficient fuel combustion, restoring crisp throttle response, ensuring a perfectly stable idle, and delivering consistent ignition performance.\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;\"\u003e2011-2013 BMW 5 Series\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;\"\u003eN63 4.4L V8 \/ F10\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;\"\u003e400 hp \/ 450 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;\"\u003e12137523345, UF667, 2IGC0102, 921-2111, C1638VC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011 BMW 550i 4.4L V8\u003c\/li\u003e\n  \u003cli\u003e2012 BMW 550i 4.4L V8\u003c\/li\u003e\n  \u003cli\u003e2013 BMW 550i 4.4L V8\u003c\/li\u003e\n  \u003cli\u003e2011 BMW 550i xDrive 4.4L V8\u003c\/li\u003e\n  \u003cli\u003e2012 BMW 550i xDrive 4.4L V8\u003c\/li\u003e\n  \u003cli\u003e2013 BMW 550i xDrive 4.4L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for precise module communication, these components ensure a perfect interface with the DME, delivering a stable spark profile and keeping your instrument cluster entirely free of Check Engine Lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50050895741176,"sku":"DS-ENLDZD2NF","price":229.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-bmw-550i-550i-xdrive-2011-2013-4-4l-v8-1.jpg?v=1784833810","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-bmw-550i-550i-xdrive-2011-2013-4-4l-v8","provider":"Performance Chip Tuning","version":"1.0","type":"link"}