{"product_id":"catalytic-converter-for-ford-mustang-2015-2017-3-7l","title":"Catalytic Converter for Ford Mustang (2015-2017) 3.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Catalytic Converters for 2015-2017 Ford Mustang (S550)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This left and right catalytic converter pair replaces failed front units on the 2015-2017 Ford Mustang \u003cstrong\u003eS550\u003c\/strong\u003e \u003cstrong\u003e3.7L Cyclone V6\u003c\/strong\u003e to restore emissions control and flow.\u003c\/p\u003e\u003ch3\u003eThe Stock Ford Mustang Catalytic Converter Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eS550\u003c\/strong\u003e chassis with the \u003cstrong\u003e3.7L Cyclone V6\u003c\/strong\u003e, factory front converters endure severe thermal cycling near the exhaust manifolds. Repeated heat soak and unburned fuel degrade the precious-metal washcoat and fracture the ceramic brick, triggering \u003cstrong\u003eP0420\u003c\/strong\u003e or \u003cstrong\u003eP0430\u003c\/strong\u003e efficiency codes. Broken substrate chunks also rattle inside the shell or lodge downstream, creating excessive backpressure and sluggish throttle response.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Catalytic Converter\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDTCs:\u003c\/strong\u003e \u003cstrong\u003eP0420\u003c\/strong\u003e\/\u003cstrong\u003eP0430\u003c\/strong\u003e codes from depleted catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRattle:\u003c\/strong\u003e Metallic noise from a fractured ceramic core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackpressure:\u003c\/strong\u003e Clogged brick causing power loss and failed emissions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Stainless Exhaust Solution\u003c\/h3\u003e\u003cp\u003eThis complete Bank 1 and Bank 2 pair (\u003cstrong\u003eEXL0743321-1\/2\u003c\/strong\u003e) uses corrosion-resistant \u003cstrong\u003estainless steel\u003c\/strong\u003e tubing and 8x5x4-inch housings to prevent heat cracking. Inside, a high-flow \u003cstrong\u003eceramic honeycomb substrate\u003c\/strong\u003e with precious-metal washcoat converts HC, CO, and NOx for OBD-II compliance. Precision-bent pipes, factory flanges, integrated O2 sensor ports, and mid-pipe clamps deliver bolt-on installation with zero cutting or welding.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 x Direct-Fit Catalytic Converters (Left and Right, with O2 sensor ports)\u003c\/li\u003e\n\u003cli\u003e2 x Exhaust Clamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\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;\"\u003e2015-2017 Ford Mustang\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;\"\u003e3.7L Cyclone V6 \/ S550\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;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEPA Federal (46-State Legal) \/ Ceramic Honeycomb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Cutting or Welding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2015, 2016, 2017 Ford Mustang Base 3.7L V6 (Coupe and Convertible)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the S550 Mustang?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for the 2015-2017 Ford Mustang \u003cstrong\u003e3.7L Cyclone V6\u003c\/strong\u003e. \u003cstrong\u003eExcludes 2.3L EcoBoost and 5.0L V8; EPA federal only—not CARB legal in CA, NY, CO, or ME.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0420\/P0430 codes, and are O2 sensors included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, if caused by worn converters.\u003c\/strong\u003e Replacing both banks restores catalyst efficiency; inspect for exhaust leaks too. Transfer existing O2 sensors or install new units.\u003c\/p\u003e\u003ch4\u003eAre mounting clamps and gaskets included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eTwo mid-pipe clamps are included; gaskets are not.\u003c\/strong\u003e Soak fasteners with penetrating oil, install new flange gaskets, torque evenly, and inspect for leaks.\u003c\/p\u003e\u003ch3\u003eThe Ford Performance Standard\u003c\/h3\u003e\u003cp\u003eBuilt for the \u003cstrong\u003eS550\u003c\/strong\u003e platform, these converters eliminate broken cores to restore throttle response and balanced V6 exhaust flow.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68085480030456,"sku":"DS-EAIKY32LC","price":256.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-ford-mustang-2015-2017-3-7l-1.jpg?v=1794544713","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-ford-mustang-2015-2017-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}