Flowmaster American Thunder Crossmember-Back Exhaust For Chevy El Camino 64-72 (17120)

The Flowmaster American Thunder Crossmember-Back Exhaust System is a complete dual exhaust upgrade designed for 1964 to 1972 Chevrolet and GMC El Camino and Sprint models with V8 engines. Constructed from 2.50-inch mandrel-bent aluminized steel, it features a built-in H-pipe to balance exhaust pressures, reduce backpressure during deceleration, and maximize power output. The system includes a pair of Super 50 Series mufflers that produce a deep, powerful exterior sound with minimal interior tone, catering to enthusiasts who want their performance heard outside the vehicle. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished with large 3.00-inch angle-cut polished stainless tips for an aggressive appearance. Like all Flowmaster systems, it offers improved throttle response, increased horsepower, and better fuel efficiency, providing a high-performance upgrade with durable construction.

Designed specifically for 1964–1972 Chevrolet and GMC El Camino and Sprint models with V8 engines, this system is a direct bolt-on replacement that ensures an easy fit with all necessary hardware included. It is suitable for street use and performance enthusiasts seeking a moderately aggressive sound and enhanced exhaust flow. The system is engineered for straightforward installation, making it ideal for those looking to upgrade their vehicle’s exhaust for improved sound and performance without extensive modifications. This kit provides a complete solution for maximizing power and sound quality in classic muscle cars and pickup trucks.