The Flowmaster American Thunder Crossmember-Back Exhaust System is a high-performance dual exhaust upgrade designed specifically for 1967-1968 Camaro and Firebird models. Constructed with 2.50-inch aluminized steel tubing, this system features a built-in H-pipe for improved exhaust flow and throttle response, delivering increased power and a deep, muscle car sound. The mandrel-bent tubing directs exhaust into a pair of Super 44 mufflers, with 2.50-inch tailpipes exiting behind the rear wheels in the factory location. This system provides a moderate to aggressive tone both inside and outside the vehicle, appealing to enthusiasts seeking a bold exhaust note. Designed for an easy fit, it includes all necessary hardware, parts, and instructions for straightforward installation.
This exhaust system is tailored for 1967-1968 GM F-Body vehicles, including Camaros and Firebirds, with a specific fitment for models equipped with the original factory configuration. It serves as a complete Crossmember-Back dual exhaust upgrade, suitable for street and muscle car applications. The system is compatible with convertibles by spacing down the factory convertible body brace by approximately 0.375 inch or replacing it with a Hotchkis Performance body brace part #1404. It is intended for enthusiasts seeking improved performance, sound, and a direct bolt-on replacement that enhances the vehicle’s muscle car character. The kit includes all necessary components for a hassle-free installation.
