Flowmaster American Thunder Mustang Exhaust System For 64-73 Ford Mustang, Shelby GT350/GT500 (67-70) (17282)

The Flowmaster American Thunder Under Valance Exhaust System for 1967-1970 Ford Mustangs is a high-performance dual Crossmember-Back exhaust system designed to deliver a moderate to aggressive exhaust tone. Constructed from 16-gauge mandrel-bent aluminized steel tubing, it features a built-in H-pipe crossover and a pair of Super 44 Series performance mufflers, providing a deep, powerful sound. The 2.50-inch mandrel-bent tailpipes include a slight turndown at the rear bumper, enhancing both sound and style. This system is engineered for easy installation, including all necessary hangers and hardware, and offers benefits such as improved throttle response, increased power, and better fuel mileage. Like all Flowmaster exhausts, it is covered by a 3-year Limited Warranty, ensuring durability and quality.

Designed specifically for 1967-1970 Ford Mustangs, this system fits models with V8 engines and is intended for street use and enthusiast applications. It does not fit convertibles, cars with staggered shocks, or vehicles with rear valance exhaust cutouts. The system is a direct bolt-on replacement for the factory exhaust, providing a performance upgrade with a deep, aggressive tone. It does not include header reducer cones or downpipes for factory manifolds. The kit includes all necessary hardware for installation, making it suitable for those seeking a straightforward upgrade to enhance their vehicle’s sound and performance.