{"product_id":"ignition-coil-and-iridium-spark-plugs-for-bmw-z3-1997-2002-2-2l-2-5l-2-8l-3-0l-3-2l","title":"Ignition Coil and Iridium Spark Plugs for BMW Z3 (1997-2002) 2.2L 2.5L 2.8L 3.0L 3.2L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 1997-2002 BMW Z3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores peak secondary ignition voltage and stabilizes combustion efficiency across the entire rev range for 6-cylinder BMW roadsters and coupes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Z3 Coil and Plug Breakdown\u003c\/h3\u003e\n\u003cp\u003eDue to the enclosed spark plug well design on BMW inline-six engines, OEM ignition coils suffer severe thermal stress and heat-soak. Over time, factory epoxy resin breaks down, creating micro-fractures in the coil body. This dielectric failure allows internal arching, secondary winding resistance drift, and high-RPM misfires. Simultaneously, standard worn electrodes widen the spark gap, placing excess electrical load on the output stages and triggering hesitation, rough idle, and DME check engine fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete 6-cylinder ignition service kit replaces tired components with reinforced coil-on-plug units and high-durability iridium plugs. The coils feature high-conductivity internal copper windings insulated with advanced high-dielectric potting compound, resisting internal breakdown under sustained high-temperature operation. Matched with fine-wire iridium core spark plugs, the kit lowers required firing voltage, accelerates flame front propagation, and provides corrosion-resistant blade terminals for stable current transfer.\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;\"\u003e1997-2002 BMW Z3 (6-Cylinder Models)\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;\"\u003eM52, M52TU, M54, S52, S54 \/ E36\/7 (Roadster), E36\/8 (Coupe)\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;\"\u003e168 - 315 hp \/ 155 - 251 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;\"\u003eUF354, UF-354, UF300, UF-300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1997-2002 BMW Z3 2.2L Inline-6 (M54)\u003c\/li\u003e\n  \u003cli\u003e1998-2002 BMW Z3 2.5L \/ 2.3 Inline-6 (M52TU, M54)\u003c\/li\u003e\n  \u003cli\u003e1997-2000 BMW Z3 2.8L Inline-6 (M52, M52TU)\u003c\/li\u003e\n  \u003cli\u003e2001-2002 BMW Z3 3.0L Inline-6 (M54)\u003c\/li\u003e\n  \u003cli\u003e1998-2002 BMW Z3 M Roadster \/ M Coupe 3.2L Inline-6 (S52, S54)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet factory resistance and impedance tolerances, ensuring transparent communication with Siemens and Bosch engine management systems without phantom misfire codes or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50458140147960,"sku":"DS-EM8SJVQ2C","price":121.95,"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-bmw-z3-1997-2002-2-2l-2-5l-2-8l-3-0l-3-2l-1.jpg?v=1788793250","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-bmw-z3-1997-2002-2-2l-2-5l-2-8l-3-0l-3-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}