{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mazda-3-2004-2005-2-0l","title":"Ignition Coil and Iridium Spark Plugs for Mazda 3 (2004-2005) 2.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2004-2005 Mazda 3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRestores primary ignition health:\u003c\/strong\u003e A direct-replacement 4-cylinder tune-up kit engineered to resolve secondary voltage breakdown, intermittent misfires, and rough idle on the 2.0L MZR engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mazda 3 Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eWith age and continuous heat cycling in the cylinder head wells, factory coil-on-plug assemblies suffer internal dielectric degradation and epoxy breakdown. This thermal stress causes micro-arcing, weakened secondary spark output, and unburnt fuel cycles. Concurrently, factory standard plugs wear at the ground electrode, expanding the plug gap and forcing degraded coils to exceed their voltage capacity under acceleration load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis kit matches heavy-duty coil packs with fine-wire iridium spark plugs. The coil assemblies utilize dense-wound copper primary and secondary windings potted in high-dielectric epoxy to resist thermal breakdown and eliminate voltage leakage. Paired with corrosion-resistant iridium center electrodes requiring lower strike voltage, this setup ensures rapid flame kernel propagation, crisper throttle response, and stable combustion under high engine load.\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;\"\u003e2004-2005 Mazda 3\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;\"\u003e2.0L MZR (LF-DE) \/ BK Chassis\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;\"\u003e148 hp \/ 135 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;\"\u003eDG541, DG507, FD505, UF621\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Mazda 3 i Sedan 2.0L L4 Gas\u003c\/li\u003e\n  \u003cli\u003e2005 Mazda 3 i Sedan 2.0L L4 Gas\u003c\/li\u003e\n  \u003cli\u003e2004 Mazda 3 2.0L 4-Cylinder Models\u003c\/li\u003e\n  \u003cli\u003e2005 Mazda 3 2.0L 4-Cylinder Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mazda Driving Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet stringent Japanese OEM ignition tolerances, this kit restores crisp throttle modulation, eliminates low-RPM hesitations, and ensures reliable cold starts without throwing check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50452593705208,"sku":"DS-EBYYECJ55","price":67.95,"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-mazda-3-2004-2005-2-0l-1.jpg?v=1788722454","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-mazda-3-2004-2005-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}