The Flowmaster American Thunder Exhaust System is a high-performance exhaust upgrade designed specifically for 1967-1972 Ford F-100, F-250, and F-350 2-wheel drive V8 trucks. Constructed with mandrel bent 2.50-inch 409 stainless steel tubing, it features a built-in H-pipe crossover to optimize exhaust pulse flow, enhancing both performance and durability. The system includes Super 44 Series performance mufflers that produce a deep, aggressive tone with a moderate exterior and interior sound level. It comes complete with all necessary hardware for easy installation and offers a choice of three tailpipe exit options: straight out the rear, side exit behind each rear tire, or dumped behind the rear tires. Covered by a lifetime limited warranty, this system is engineered for improved exhaust flow and a robust sound.
Designed for 1967-1972 Ford F-100, F-250, and F-350 trucks without a side-mounted auxiliary fuel tank, this exhaust system fits both short and long wheelbase models. It is ideal for street performance and daily driving applications, providing a direct bolt-on upgrade that enhances engine sound and exhaust flow. The system is suitable for V8 engines and is intended for those seeking a balance of performance, durability, and a classic Flowmaster tone. All hardware necessary for installation is included, making it a comprehensive upgrade for compatible trucks.
