Upgrade the sound and performance of your Fox body Mustang with the Flowmaster 17213 American Thunder cat-back exhaust system. Designed for 1987-1993 Ford Mustang LX models equipped with the 5.0L engine, this emissions-legal system also fits 1986 Ford Mustang GT models with the 5.0L engine. It is compatible with both coupe and convertible body styles and delivers the aggressive exterior exhaust tone associated with Flowmaster’s American Thunder series.
The system uses free-flowing, mandrel-bent aluminized steel inlet tubing and tailpipes to promote consistent exhaust flow and durable performance. A pair of Flowmaster Super 44 Series mufflers provides a deep, powerful sound, while the polished 304 stainless steel tailpipes add a clean, performance-oriented appearance. The exhaust is dyno tuned for maximum performance and is engineered to use the vehicle’s factory hanger locations for a straightforward bolt-on installation.
Flowmaster 17213 includes the necessary hangers, hardware, and installation instructions to help simplify the installation process. Its direct-fit design makes it an excellent choice for restorations, street-driven performance vehicles, and enthusiasts seeking a more aggressive exhaust character without extensive modifications. This system is backed by a 3-year limited warranty. Carburetor-related approval requirements may apply; verify vehicle and emissions compatibility before installation.
Features:





