This large diameter H-Pipe is designed to provide big power gains with little wallet drain. The fully aluminized 16-gauge 2-1/2'' mandrel bent tubing flows smoother than the factory pipes, plus our balance tube greatly reduces back pressure and increases exhaust velocity to free-up hidden horsepower. The kit includes all necessary mounting hardware for an easy bolt-on installation. Catalytic converters not included, for off-road use only. Made in the USA.