{"product_id":"ignition-coil-iridium-spark-plugs-for-audi-s5-coupe-2008-2012-4-2l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs for Audi S5 Coupe (2008-2012) 4.2L V8","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2008-2012 Audi S5\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDirect replacement ignition service kit designed to restore optimal spark energy, eliminate misfires, and improve combustion efficiency in the 4.2L FSI V8.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Stock S5 Ignition Shortcoming\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition coils on the B8 S5 are notoriously susceptible to premature degradation due to the intense thermal load generated by the 4.2L FSI V8 engine. As these coils heat cycle, the internal epoxy and secondary windings break down, leading to voltage leaks, sluggish throttle response, and cylinder misfires—especially under heavy load or acceleration. Combined with standard spark plugs that suffer from rapid electrode wear in high-compression direct-injection environments, the engine often experiences incomplete combustion, carbon buildup, and reduced fuel economy.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete 16-piece ignition service kit addresses OE failures by utilizing high-grade internal copper wire windings that offer superior conductivity and resistance to high engine-bay temperatures. The upgraded ignition coils feature reinforced dielectric epoxy to prevent voltage punch-through and ensure a consistent, high-energy spark transfer. Paired with the included iridium-tipped spark plugs, which feature an extremely high melting point and a fine-wire center electrode, this setup provides a concentrated spark that requires less firing voltage. The result is a highly efficient burn capable of delivering up to a 15% increase in ignition performance and energy consistency, smoothing out idle, and restoring factory power delivery without triggering engine codes.\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\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;\"\u003e2008-2012 Audi S5 Coupe\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;\"\u003e4.2L FSI V8 (CAUA) \/ B8\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;\"\u003e354 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;\"\u003eUF529, 06E905115F, 06E905115D, 06E905115A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2008 Audi S5 Coupe 4.2L V8\u003c\/li\u003e\n\u003cli\u003e2009 Audi S5 Coupe 4.2L V8\u003c\/li\u003e\n\u003cli\u003e2010 Audi S5 Coupe 4.2L V8\u003c\/li\u003e\n\u003cli\u003e2011 Audi S5 Coupe 4.2L V8\u003c\/li\u003e\n\u003cli\u003e2012 Audi S5 Coupe 4.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet or exceed strict OE criteria, this direct-fit ignition system guarantees precise timing and prevents CEL (Check Engine Light) issues, ensuring your European performance coupe runs with absolute reliability and maximum efficiency.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50062799470840,"sku":"DS-EB0T27UOS","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-audi-s5-coupe-2008-2012-4-2l-v8-1.png?v=1785175441","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-iridium-spark-plugs-for-audi-s5-coupe-2008-2012-4-2l-v8","provider":"Performance Chip Tuning","version":"1.0","type":"link"}