{"product_id":"ignition-coil-iridium-spark-plugs-for-subaru-legacy-outback-2012-2017-3-6l","title":"Ignition Coil + Iridium Spark Plugs for Subaru Legacy Outback (2012-2017) 3.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Ignition Coil \u0026amp; Denso Iridium Spark Plug Kit for 2012-2017 Subaru Legacy, Outback (BM\/BR\/BN\/BS)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition overhaul kit replaces aged coil-on-plug modules and worn spark plugs on the 2012-2017 Subaru Legacy and Outback to restore complete secondary combustion, eliminate high-rpm misfires, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Subaru Legacy, Outback Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe horizontally opposed layout of the \u003cstrong\u003eEZ36D\u003c\/strong\u003e 3.6-liter boxer-6 positions cylinder heads inches from the chassis rails, concentrating severe radiant thermal stress directly onto the factory coil boots and internal transformer windings. Over extended thermal cycling, factory dielectric epoxy degrades and micro-cracks form along the coil bodies. This breakdown induces internal shorting, high-voltage leakage, and weakened spark output under load. Concurrently, factory spark plug ground electrodes suffer from gap erosion, demanding increased breakdown voltage from deteriorating coils. The result is unburned hydrocarbons, sluggish throttle response, random misfire fault codes (P0300-P0306), and compromised fuel economy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement kit provides high-temperature thermoplastic coil-on-plug housings engineered with reinforced internal copper winding spools to resist sustained heat soak. Matched with \u003cstrong\u003eDenso IKH20\u003c\/strong\u003e iridium-tipped spark plugs featuring a fine-wire 0.4mm center electrode, the combination significantly drops required firing voltage while maximizing spark kernal expansion. High-grade silicone spark plug boots and internal suppressing resistors eliminate RF interference and arc tracking across wide thermal swings, sustaining a hot, stable ignition discharge directly through high cylinder pressures.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e6 Ignition Coils\u003c\/li\u003e\n  \u003cli\u003e6 Denso Iridium Spark Plugs (IKH20)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2012-2017 Subaru Legacy, Outback\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eEZ36D 3.6L H6\u003c\/strong\u003e \/ \u003cstrong\u003eBM, BR, BN, BS\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e256 hp \/ 247 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eUF666\u003c\/strong\u003e, \u003cstrong\u003eUF287\u003c\/strong\u003e, \u003cstrong\u003eUF-287\u003c\/strong\u003e, \u003cstrong\u003e178-8389\u003c\/strong\u003e, \u003cstrong\u003e5C1281\u003c\/strong\u003e, \u003cstrong\u003eE884\u003c\/strong\u003e, \u003cstrong\u003e610-58598\u003c\/strong\u003e, \u003cstrong\u003e22433AA531\u003c\/strong\u003e, \u003cstrong\u003e22433-AA531\u003c\/strong\u003e, \u003cstrong\u003e22433-AA530\u003c\/strong\u003e, \u003cstrong\u003e22433-AA411\u003c\/strong\u003e, \u003cstrong\u003e22433AA441\u003c\/strong\u003e, \u003cstrong\u003e22058\u003c\/strong\u003e, \u003cstrong\u003e1788389\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2012-2017 Subaru Legacy 3.6L (EZ36D)\u003c\/li\u003e\n  \u003cli\u003e2012-2017 Subaru Outback 3.6L (EZ36D)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the BM\/BR\/BN\/BS Legacy, Outback?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2012-2017 Subaru Legacy and Outback equipped with the \u003cstrong\u003eEZ36D\u003c\/strong\u003e 3.6L 6-cylinder engine. \u003cstrong\u003eThis kit does not fit 2.5L 4-cylinder EJ25 or FB25 models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eShould spark plugs and coil packs be installed simultaneously?\u003c\/h4\u003e\n\u003cp\u003eYes, replacing spark plugs alongside coils ensures balanced secondary circuit resistance across all six cylinders and prevents premature failure of new coils due to excessive plug gap resistance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Subaru Precision Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the demanding horizontal architecture of Subaru's flat-six powerplants, this kit delivers consistent high-voltage delivery to preserve linear throttle delivery and smooth, balanced boxer operation across all driving conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67561491333368,"sku":"DS-E0SRRJXOH","price":239.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-subaru-legacy-outback-2012-2017-3-6l-1.jpg?v=1790964513","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-for-subaru-legacy-outback-2012-2017-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}