The Flowmaster American Thunder Crossmember-Back Exhaust System is a high-performance dual exhaust upgrade designed for classic GM F-Body models from 1967 to 1968. Constructed from 16-gauge mandrel-bent stainless steel tubing, this system features a built-in H-pipe crossover and includes a pair of Super 44 Series mufflers, providing a durable and efficient exhaust flow. It delivers a moderate to aggressive exhaust tone, enhancing both interior and exterior sound profiles. The system is engineered to improve throttle response, increase power output, and boost fuel efficiency, making it a popular choice among automotive enthusiasts seeking a combination of performance and sound quality.
Designed specifically for 1967–1968 GM F-Body vehicles, this crossmember-back exhaust system is a direct bolt-on replacement that fits models with compatible chassis and engine configurations. It is ideal for street-driven cars and performance enthusiasts who want a robust sound and improved engine performance. The kit includes all necessary hangers and hardware for straightforward installation, ensuring a secure fit. While optimized for stainless steel construction, an aluminized steel option is available for those seeking a different durability profile. This system is perfect for enthusiasts looking to upgrade their exhaust for a more aggressive sound and enhanced driving experience.
