98-02 LS1 Firebird/Camaro Flowmaster American Thunder Cat Back, Crossflow Muffler, 3" pipe, dual rear exit, & stainless tips.
Flowmaster Cat-Back Exhaust systems are designed with the latest technology to provide even better performance than a single Flowmaster muffler. These systems improve acceleration and passing power, as well as increase fuel mileage. Every system is individually engineered and dyno-tested for each app. and includes all required mounting hardware. All tubing is mandrel bent for superior exhaust gas flow.Both mufflers and tubing are fabricated from aluminized steel for corrosion resistance. SYSTEMS INCLUDE: Performance Muffler. All Pipes with Hangers attached. Clamps and mounting hardware, & instructions