{"product_id":"dual-exhaust-system-with-h-pipe-for-ford-mustang-1965-1970-4-3l-4-7l-5-0l","title":"Dual Exhaust System with H-Pipe for Ford Mustang (1965-1970) 4.3L 4.7L 5.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Dual Exhaust System with H-Pipe for 1965-1970 Ford Mustang (1st Gen)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 2-inch Dual Exhaust System replaces restrictive factory single or crush-bent pipes on the 1965-1970 Ford Mustang to balance exhaust gas pulses, reduce parasitic backpressure, and improve engine breathing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Mustang Flow Restrictions\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust configurations on early \u003cstrong\u003e1st Gen\u003c\/strong\u003e Mustangs often relied on single-pipe routing or restrictive, press-bent dual pipes that created substantial thermal and flow bottlenecks. Unequal exhaust pulse pressure between cylinder banks on the \u003cstrong\u003eWindsor Small Block V8\u003c\/strong\u003e inhibits efficient scavenging, forcing cylinders to work against residual combustion gases. Over decades, original low-carbon steel pipe assemblies suffer from severe corrosion, internal muffler baffle degradation, and thermal stress fractures, robbing the engine of volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis full 2-inch dual exhaust system restores thermal dissipation and velocity using smooth-radius bends and an integrated balance H-pipe. The central crossover pipe equalizes pressure waves across opposing banks, promoting scavenged exhaust extraction via Bernoulli's principle while eliminating harsh rasp and interior resonance. Fabricated to interface directly with standard OEM cast-iron manifolds, this comprehensive kit includes performance-tuned mufflers, intermediate pipes, full tailpipes, heavy-duty clamps, and flange donut gaskets for a secure mechanical seal.\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: 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;\"\u003e1965-1970 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;\"\u003eWindsor Small Block V8 (260\/289\/302) \/ 1st Gen\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;\"\u003e164-230 hp \/ 258-310 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\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1965-1970 Ford Mustang 4.3L (260 cid) V8 Non-HiPo with standard exhaust manifolds\u003c\/li\u003e\n  \u003cli\u003e1965-1970 Ford Mustang 4.7L (289 cid) V8 Non-HiPo with standard exhaust manifolds\u003c\/li\u003e\n  \u003cli\u003e1965-1970 Ford Mustang 5.0L (302 cid) V8 Non-HiPo with standard exhaust manifolds\u003c\/li\u003e\n  \u003cli\u003eManual transmissions and C4 automatic transmissions\u003c\/li\u003e\n  \u003cli\u003eDoes NOT fit models equipped with C6 or FMX automatic transmissions\u003c\/li\u003e\n  \u003cli\u003eDoes NOT fit Inline-6, 351W, 351C, 390, 428, or 429 engines\u003c\/li\u003e\n  \u003cli\u003eDoes NOT fit aftermarket headers or HiPo tubular exhaust manifolds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the 1st Gen Mustang?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-on fit for the 1965-1970 Ford Mustang equipped with the \u003cstrong\u003eWindsor Small Block V8\u003c\/strong\u003e and factory cast-iron manifolds.\u003c\/p\u003e\n\n\u003ch4\u003eWill this exhaust clear larger C6 or FMX transmission bells?\u003c\/h4\u003e\n\u003cp\u003eNo, the intermediate pipes and crossover H-pipe are specifically routed based on the 1965-1966 manual and \u003cstrong\u003eC4\u003c\/strong\u003e bellhousing clearances.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to deliver classic American muscle tone without intrusive highway drone, this balanced system optimizes exhaust gas velocity to ensure your classic pony car sounds as commanding as it pulls.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67531033411832,"sku":"DS-EF9NZN8MU","price":454.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/dual-exhaust-system-with-h-pipe-for-ford-mustang-1965-1970-4-3l-4-7l-5-0l-1.jpg?v=1790528154","url":"https:\/\/performancechiptuning.com\/es\/products\/dual-exhaust-system-with-h-pipe-for-ford-mustang-1965-1970-4-3l-4-7l-5-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}