{"product_id":"catback-exhaust-for-ford-mustang-1999-2004-3-8l","title":"Catback Exhaust for Ford Mustang (1999-2004) 3.8L","description":"\u003ch2\u003eHigh-Flow Catback Exhaust for 1999-2004 Ford Mustang\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Catback Exhaust replaces the restrictive factory post-catalytic exhaust assembly on the 1999-2004 Ford Mustang to reduce parasitic exhaust backpressure, optimize scavenged gas velocity, and deepen exhaust tone.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Mustang Exhaust Restriction and Corrosion Fatigue\u003c\/h3\u003e\n\u003cp\u003eThe OEM single-exhaust layout on the \u003cstrong\u003eNew Edge SN95\u003c\/strong\u003e base coupe and convertible chokes the \u003cstrong\u003e3.8L Essex V6\u003c\/strong\u003e through undersized, press-bent tubing and heavily baffled chambered silencers. Factory mild steel tubing rapidly succumbs to thermal degradation, road salt corrosion, and internal acidic condensation rot, causing flange separation and exhaust leaks at slip joints. Furthermore, standard crush bends decrease internal pipe diameter across directional transitions, creating turbulent boundary layer separation and high backpressure that inhibits cylinder evacuation at upper RPM loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct bolt-on system is manufactured from mandrel-bent \u003cstrong\u003eT-304 stainless steel\u003c\/strong\u003e to maintain consistent internal cross-sectional diameter across all bends, facilitating laminar exhaust gas velocity and improved volumetric efficiency. Precision TIG-welded assembly joints and heavy-duty pre-welded exhaust hangers integrate seamlessly with OEM rubber isolators without chassis modification. Featuring an acoustic-tuned straight-through internal core muffler and corrosion-resistant exit tips, this catback eliminates thermal bottlenecking while resisting structural oxidation under extreme thermal cycling.\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;\"\u003e1999-2004 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;\"\u003e3.8L Essex V6 \/ SN95 (New Edge)\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;\"\u003e190-193 hp \/ 220-225 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\u003e1999 Ford Mustang Base 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2000 Ford Mustang Base 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2001 Ford Mustang Base 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2002 Ford Mustang Base 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2003 Ford Mustang Base 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2004 Ford Mustang Base 3.8L 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 SN95 Mustang?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1999-2004 Ford Mustang equipped with the \u003cstrong\u003e3.8L Essex V6\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this catback exhaust trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because this system bolts downstream of the factory catalytic converters and downstream O2 sensors, it will not trigger emissions trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to deliver aggressive tone without cabin drone, this catback provides the structural integrity, thermal resistance, and acoustic clarity required for demanding street and strip use.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50512350871800,"sku":"DS-E9358UJLS","price":572.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catback-exhaust-for-ford-mustang-1999-2004-3-8l-1.jpg?v=1789425968","url":"https:\/\/performancechiptuning.com\/products\/catback-exhaust-for-ford-mustang-1999-2004-3-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}