The Flowmaster 17201 American Thunder Crossmember-Back Exhaust System is designed for high-horsepower and large-cubic-inch V8 engines in 1967-1969 Chevrolet Camaro and Pontiac Firebird models. This crossmember-back system provides a true-dual exhaust configuration with large 3.00-inch tubing, an H-pipe crossover, and cased Super 40 Series mufflers for improved exhaust flow, a deep tone, and an aggressive exterior sound.
Constructed from durable 16-gauge aluminized steel, the system uses mandrel-bent tubing to help maintain consistent internal diameter throughout the exhaust path. The custom-bent tailpipes tuck high above the rear axle and exit with a slight turn-down behind the rear wheels at the quarter panels. Included hangers and hardware simplify installation, while the 3-year limited warranty provides added confidence in the system’s long-term performance.
This Flowmaster American Thunder system fits 1967, 1968, and 1969 Chevrolet Camaro and Pontiac Firebird V8 applications. It does not include header reducers or downpipes for factory manifolds. Convertible models require an X-brace modification; the brace must be shimmed downward as needed to provide clearance for the exhaust pipes. Verify vehicle configuration and existing exhaust components before installation.
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