{"product_id":"cat-back-exhaust-for-ford-mustang-2011-2014-3-7l","title":"Cat Back Exhaust for Ford Mustang (2011-2014) 3.7L","description":"\u003ch2\u003eHigh-Flow Cat Back Exhaust for 2011-2014 Ford Mustang\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cat Back Exhaust replaces the restrictive factory exhaust assembly on the 2011-2014 Ford Mustang to significantly reduce backpressure, optimize exhaust gas velocity, and deliver an aggressive acoustic profile.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Mustang Exhaust Restriction\u003c\/h3\u003e\n\u003cp\u003eThe factory exhaust on the \u003cstrong\u003eS197\u003c\/strong\u003e platform relies on crush-bent tubing, heavy multi-chambered mufflers, and narrow bottleneck transitions that impede post-catalytic flow. Designed primarily for sound suppression, the restrictive OEM baffles generate unwanted backpressure against the naturally aspirated \u003cstrong\u003eCyclone 3.7L\u003c\/strong\u003e engine. Furthermore, factory aluminized steel alloys are vulnerable to road salt corrosion, surface oxidation, and thermal cycling fatigue, compromising structural longevity over time.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-volume scavenging, this cat-back system is manufactured from mandrel-bent polished \u003cstrong\u003eT-304 Stainless Steel\u003c\/strong\u003e to maintain consistent internal cross-sectional geometry without restriction. Low-restriction performance mufflers and free-flowing routing enhance exhaust gas evacuation, unlocking top-end breathability. Pre-welded factory-positioned hangers and precision flanges bolt directly to OEM mounting points, requiring no cutting or welding while resisting thermal stress and corrosion under aggressive driving conditions.\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;\"\u003e2011-2014 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 \/ S197\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;\"\u003e305 hp \/ 280 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 (MPN SPT-CAT1148)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011 Ford Mustang Base 3.7L V6\u003c\/li\u003e\n  \u003cli\u003e2012 Ford Mustang Base 3.7L V6\u003c\/li\u003e\n  \u003cli\u003e2013 Ford Mustang Base 3.7L V6\u003c\/li\u003e\n  \u003cli\u003e2014 Ford Mustang Base 3.7L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the S197 Mustang?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2011-2014 Ford Mustang equipped with the 3.7L Cyclone engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this cat-back exhaust system trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because this system bolts downstream of the factory catalytic converters and O2 sensors, it operates without triggering emissions fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt for the open throttle demands of modern muscle, this mandrel-bent T-304 system delivers the distinct, throatier exhaust pulse and reduced parasitic pumping loss that Mustang drivers require.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50607738355960,"sku":"DS-EC6NRXTTN","price":339.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-ford-mustang-2011-2014-3-7l-1.jpg?v=1790091506","url":"https:\/\/performancechiptuning.com\/fr\/products\/cat-back-exhaust-for-ford-mustang-2011-2014-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}