{"product_id":"catalytic-converter-for-ford-fusion-2010-2012-2-5l-rear","title":"Catalytic Converter for Ford Fusion (2010-2012) 2.5L Rear","description":"\u003ch2\u003eEmissions-Compliant Direct-Fit Rear Catalytic Converter for 2010-2012 Ford Fusion\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Rear Catalytic Converter replaces the degraded secondary emissions assembly on the 2010-2012 Ford Fusion to eliminate P0420 diagnostic trouble codes, eliminate exhaust leaks, and restore proper exhaust flow dynamics.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Fusion Exhaust Restriction \u0026amp; Thermal Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust assemblies on the \u003cstrong\u003eCD3\u003c\/strong\u003e chassis endure severe thermal cycling and localized sintering of the internal washcoat over extended mileage. In the \u003cstrong\u003eDuratec 25\u003c\/strong\u003e 2.5L inline-four engine, thermal shock and hydrocarbon loading frequently cause the OEM ceramic monolith to fracture, carbon-foul, or melt. This internal breakdown restricts exhaust scavenging, elevates cylinder head backpressure, dulls throttle response, and illuminates continuous catalyst system efficiency trouble codes. Additionally, the thin factory mild-steel tubing and stamped mounting flanges are highly prone to road-salt corrosion and pinhole leaking around the rear joints.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct bolt-on replacement, this rear catalytic converter features a heavy-gauge stainless steel outer casing designed to withstand road debris impacts and oxidation. Internally, a high-efficiency ceramic substrate maximizes surface area with a dense precious-metal washcoat, ensuring optimal chemical reduction of NOx, CO, and unburned hydrocarbons. Mandrel-formed transition cones promote linear exhaust velocity with minimal boundary-layer turbulence. The assembly incorporates precision-aligned mounting brackets and heavy-duty connection flanges designed to seal perfectly against factory exhaust hangers and mating pipes using the included hardware.\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; margin-bottom: 20px;\"\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;\"\u003e2010-2012 Ford Fusion\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;\"\u003eDuratec 25 \/ CD3\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;\"\u003e175 hp \/ 172 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010 Ford Fusion 2.5L I4 (S, SE)\u003c\/li\u003e\n  \u003cli\u003e2011 Ford Fusion 2.5L I4 (S, SE, SEL)\u003c\/li\u003e\n  \u003cli\u003e2012 Ford Fusion 2.5L I4 (S, SE, SEL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the CD3 Fusion?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2010-2012 Ford Fusion equipped with the \u003cstrong\u003eDuratec 25\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this assembly resolve a downstream P0420 diagnostic trouble code?\u003c\/strong\u003e\u003cbr\u003e Yes, assuming no upstream air-fuel ratio or ignition faults exist, the high-efficiency substrate restores chemical conversion to satisfy downstream sensor parameters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Fleet Reliability Caliber\u003c\/h3\u003e\n\u003cp\u003eConstructed to restore OEM emissions standards, this rear assembly delivers robust backpressure mitigation and clean tailpipe emissions to keep high-mileage CD3 platforms on the road without triggering false check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501123539192,"sku":"DS-E9HRNQN0X","price":152.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-ford-fusion-2010-2012-2-5l-rear-1.jpg?v=1789326205","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-ford-fusion-2010-2012-2-5l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}