{"product_id":"ignition-coil-and-iridium-spark-plugs-for-audi-tt-1999-2000-1-8l","title":"Ignition Coil and Iridium Spark Plugs for Audi TT (1999-2000) 1.8L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Service Kit for 1999-2000 Audi TT\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores high-voltage ignition energy and combustion stability across all four cylinders in early 20V turbocharged engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock TT Thermal Degradation \u0026amp; Spark Blowout Weakness\u003c\/h3\u003e\n\u003cp\u003eThe compact engine bay of the transverse 1.8T 20V platform subjects factory coil-on-plug packs to intense thermal cycling and severe heat soak. Over time, OEM coil housings suffer microscopic dielectric breakdown and insulation failure, resulting in secondary voltage leakage and high-RPM misfires under boost. Additionally, standard copper or nickel spark plugs rapidly erode their gap in turbocharged combustion chambers, elevating required breakdown voltage and overstressing the primary ignition circuit.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis service kit pairs reinforced coil-on-plug assemblies with high-efficiency fine-wire iridium spark plugs. Each ignition coil features high-grade electrolytic copper windings and direct-fit blade connectors sealed in high-dielectric epoxy to prevent internal arcing and heat-induced resistance spikes. The matched iridium plugs deliver precise thermal heat dissipation, ultra-fine spark kernel propagation, and superior erosion resistance, maintaining tight plug gaps under high cylinder pressures.\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;\"\u003e1999-2000 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;\"\u003e1.8T 20V (EA113) \/ Typ 8N\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;\"\u003e180 hp \/ 173 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;\"\u003eUF274, UF-274\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1999 Audi TT Base Coupe 1.8L Turbo 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e2000 Audi TT Base Coupe 1.8L Turbo 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e2000 Audi TT Base Roadster 1.8L Turbo 4-Cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet stringent European OBD-II parameters, this direct-replacement ignition pack ensures smooth cold-start idling, crisp transient throttle response, and zero misfire-related CEL fault codes.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50456048140536,"sku":"DS-EJW2OMLOI","price":123.95,"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-1999-2000-1-8l-1.jpg?v=1788757560","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-audi-tt-1999-2000-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}