{"product_id":"header-back-exhaust-system-split-rear-exit","title":"Header-Back Exhaust System Split Rear Exit","description":"The Summit Racing SUM-680111 is a header-back exhaust system engineered to improve exhaust flow and potentially increase horsepower. Constructed from durable steel, the system utilizes aluminized or 409 stainless steel tubing that is mandrel-bent. This precise bending technique ensures consistent diameter throughout the pipe, promoting high exhaust flow and reducing back pressure for better engine performance.\n\nThe system features a split rear exit configuration. It is designed as a kit for Ford and Mercury vehicles, aiming for a direct fitment where applicable. The 2.50-inch tubing diameter is suitable for a range of engine applications seeking improved exhaust efficiency.\n\nAccording to installation notes, this kit is designed to fit '64-'68 Mustangs with 289 or 302 engines, '69 Mustangs with 390 or 400 engines, and '69-'73 Mustangs with 289, 302, 351, or 400 engines, provided they are equipped with standard headers that exit straight from the motor. It is noted that some modifications may be necessary for certain applications, such as a '68 Torino with long headers, and the kit may not bolt directly on without adjustments. For the 351C engine with long tube headers, it is compatible. The system is also noted to fit 1967-1973 Cougars.","brand":"Summit","offers":[{"title":"Default Title","offer_id":52689405641016,"sku":"SUM-680111","price":384.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687698627.webp?v=1784906307","url":"https:\/\/store.motormia.co\/products\/header-back-exhaust-system-split-rear-exit","provider":"MOTORMIA","version":"1.0","type":"link"}