{"product_id":"ignition-coil-and-iridium-spark-plugs-for-subaru-legacy-2010-2012-2-5l","title":"Ignition Coil and Iridium Spark Plugs for Subaru Legacy (2010-2012) 2.5L","description":"\u003ch2\u003eOEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2010-2012 Subaru Legacy\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil packs and worn spark plugs with matched direct-fit ignition components to eliminate misfires, stabilize idle, and restore primary spark energy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Legacy Ignition Thermal Breakdown\u003c\/h3\u003e\n\u003cp\u003eDue to the horizontal layout of the Subaru Boxer engine, the ignition coils sit in tight proximity to the cylinder heads and exhaust manifolds. Over time, extreme thermal cycling degrades the factory silicone boots and cracks internal epoxy insulation. This leads to dielectric breakdown, secondary winding resistance drift, and high-load spark blow-out, while standard plugs experience gap erosion that overworks the primary ignition circuit.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis service kit pairs four direct-fit coil-on-plug units featuring high-dielectric epoxy potting and heat-resistant silicone boots with four fine-wire iridium spark plugs. The high-temperature copper windings deliver consistent high-voltage output under load, while the 0.6mm iridium center electrodes drastically lower voltage demand, resist fouling, and ensure sharp flame front propagation in EJ253 combustion chambers.\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;\"\u003e2010-2012 Subaru Legacy\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;\"\u003eEJ253 2.5L SOHC \/ BM 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;\"\u003e170 hp \/ 170 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;\"\u003e22433-AA680, 22433-AA681, UF668\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010-2012 Subaru Legacy 2.5i (2.5L H4 SOHC)\u003c\/li\u003e\n  \u003cli\u003e2010-2012 Subaru Legacy 2.5i Premium (2.5L H4 SOHC)\u003c\/li\u003e\n  \u003cli\u003e2010-2012 Subaru Legacy 2.5i Limited (2.5L H4 SOHC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Subaru Boxer Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the distinct thermal profile of Subaru boxer platforms, this ignition package delivers precise spark timing and robust arc duration to maintain clean combustion, crisp throttle response, and smooth power delivery across the entire rev range.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50429495279864,"sku":"DS-EP7DJWCZK","price":102.95,"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-subaru-legacy-2010-2012-2-5l-1.jpg?v=1788449817","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-subaru-legacy-2010-2012-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}