{"product_id":"ignition-coil-and-iridium-spark-plugs-for-audi-tt-2011-2014-1-8l","title":"Ignition Coil and Iridium Spark Plugs for Audi TT (2011-2014) 1.8L","description":"\u003ch2\u003ePrecision-Matched Ignition Kit for 2011-2014 Audi TT\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory secondary ignition voltage and maintains precise combustion timing across the boost band for the 1.8L TFSI engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock TT Thermal Degradation and Secondary Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory coil packs on the Audi 8J chassis operate directly above the cylinder head in a compact, heat-dense engine bay. Over sustained heat cycles, the internal epoxy insulation degrades, causing micro-arcing, core resistance creep, and high-rpm misfires under boost. Standard copper or worn dual-metal spark plugs experience rapid gap erosion from high-pressure direct injection, leading to increased coil load, unburnt fuel wash, and catalytic converter stress.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis matched overhaul kit features four high-dielectric coil-on-plug assemblies built with high-conductivity internal copper windings and thermal-shock-resistant silicone boots to isolate spark discharge. Paired with four fine-wire iridium spark plugs, the setup lowers required firing voltage, provides extreme resistance to electrical erosion at operating temperatures exceeding 1,200°F, and stabilizes cold idle and wide-open throttle ignition profiles.\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;\"\u003e2011-2014 Audi TT\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;\"\u003e1.8L TFSI (EA888) \/ Type 8J\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;\"\u003e158 hp \/ 184 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;\"\u003eUF575, UF-575, 07K905715F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVehicles:\u003c\/strong\u003e 2011-2014 Audi TT 1.8L L4 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOE \/ Interchange Numbers:\u003c\/strong\u003e UF575, UF-575, UF529, 07K905715D, 07K905715F, 07K905715C, L06F905115G, L07K905715F, 95860210200, 6739303, CLS1139, 5C1684, 921-2110, 5C1773\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Audi Precision Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to match OEM ECU dwell-time mapping, this kit prevents CEL illumination, cylinder misfire trouble codes (P0300-P0304), and unmetered flame quenching without requiring ignition table modifications.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50451932676344,"sku":"DS-EG2AH4302","price":79.95,"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-audi-tt-2011-2014-1-8l-1.jpg?v=1788713881","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-audi-tt-2011-2014-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}