{"product_id":"catalytic-converter-for-subaru-legacy-2013-2014-2-5l-front","title":"Catalytic Converter for Subaru Legacy (2013-2014) 2.5L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Manifold Catalytic Converter for 2013-2014 Subaru Legacy (BM)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Front Catalytic Converter assembly replaces deteriorated factory manifold emissions cores on the 2013-2014 Legacy to clear catalytic efficiency diagnostic trouble codes and restore stoichiometric exhaust flow.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Subaru Legacy Catalyst Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust manifolds on the fifth-generation \u003cstrong\u003eBM\u003c\/strong\u003e chassis encounter severe thermal cycling due to their close-coupled boxer engine placement directly below the cylinder heads. Over extended heat cycles, the factory ceramic washcoat strips away, resulting in downstream P0420 catalytic converter system efficiency threshold fault codes. Furthermore, recurring oil seepage common to high-mileage flat-four platforms contaminates internal washcoats, causing localized substrate melt-through, elevated backpressure, and sluggish top-end throttle performance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis front manifold catalytic converter unit is fabricated as a direct-fit replacement for the 2.5L \u003cstrong\u003eFB25\u003c\/strong\u003e powerplant. Built with durable tubular stainless steel runner geometry, it features heavy-duty machined mounting flanges that seal flush against the cylinder head ports to eliminate pre-catalyst exhaust leaks. The high-grade internal ceramic honeycomb substrate carries an EPA-compliant precious metal washcoat (Pt, Pd, Rh) that maximizes surface contact area to effectively oxidize hydrocarbons and carbon monoxide while reducing nitrogen oxides. Includes integrated factory-location oxygen sensor bungs and matching hardware to ensure proper sensor feedback to the factory ECU.\u003c\/p\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: solid font-size: min-width:\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;\"\u003e2013-2014 Subaru Legacy 2.5L\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\u003eFB25\u003c\/strong\u003e \/ \u003cstrong\u003eBM\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;\"\u003e173 hp \/ 174 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\u003e44620AD160\u003c\/strong\u003e, \u003cstrong\u003e44620AD16B\u003c\/strong\u003e, 16689\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\u003e2013 Subaru Legacy 2.5i (2.5L H4 - FB25)\u003c\/li\u003e\n  \u003cli\u003e2013 Subaru Legacy 2.5i Premium (2.5L H4 - FB25)\u003c\/li\u003e\n  \u003cli\u003e2013 Subaru Legacy 2.5i Limited (2.5L H4 - FB25)\u003c\/li\u003e\n  \u003cli\u003e2014 Subaru Legacy 2.5i (2.5L H4 - FB25)\u003c\/li\u003e\n  \u003cli\u003e2014 Subaru Legacy 2.5i Premium (2.5L H4 - FB25)\u003c\/li\u003e\n  \u003cli\u003e2014 Subaru Legacy 2.5i Limited (2.5L H4 - FB25)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the BM Legacy?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2013-2014 Subaru Legacy equipped with the 2.5L \u003cstrong\u003eFB25\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this unit resolve an active P0420 diagnostic trouble code?\u003c\/h4\u003e\n\u003cp\u003eYes, provided upstream fuel trim issues and exhaust manifold flange leaks are resolved, the fresh precious metal substrate restores proper catalyst operating efficiency to clear emissions faults.\u003c\/p\u003e\n\n\u003ch3\u003eThe Subaru Engineering Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the unique vibrational pulses and thermal profiles of the boxer platform, this manifold assembly preserves factory exhaust scavenging and keeps your symmetrical all-wheel-drive powertrain running clean and unchoked.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537764909304,"sku":"DS-E6OAGHMMT","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-subaru-legacy-2013-2014-2-5l-front-1.jpg?v=1790617223","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-subaru-legacy-2013-2014-2-5l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}