The latest technology for
the greatest performance


Flowmaster exhaust systems improve acceleration, passing ability, and mileage. Every system is individually engineered and dyno-tested for each application. All tubing is mandrel-bent for the best exhaust gas flow; both tubing and mufflers are fabricated from aluminized steel to resist corrosion. Force II systems offer maximum exterior sound under acceleration with minimal interior resonance while cruising. American Thunder systems deliver the aggressive tone you want and the performance you demand.

Systems include:

Flowmaster performance muffler(s)

All pipes with hangers attached

Clamps and all mounting hardware

Detailed installation instructions