These Flowmaster cat back systems are designed with the latest technology to provide the best possible performance from a Flowmaster muffler. Flowmaster's systems will both improve acceleration and passing power, as well as increase fuel mileage. Every cat back exhaust system is individually engineered and dyno-tested for each application. All tubing is mandrel bent for the best possible exhaust gas flow, and both tubing and mufflers are fabricated from aluminized steel for corrosion resistance.

Wanna let folks know you've got a Flowmaster system under your vehicle when you open it up, but don't want a lot of interior resonance? Flowmaster's Force II systems are designed to provide plenty of ''Flowmaster Sound'' under acceleration, but lower levels while cruising.

Dual Rear Exit Exhaust Systems (DOR)
The Flowmaster DOR systems are designed for the person who wants that custom look of a dual exhaust on a late model vehicle that came with a factory single exhaust. These cat back systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips for that aggressive look and sound of a dual exhaust system.

Dual Side Exit Exhaust Systems (DOS)
The Flowmaster DOS systems are designed for the person who wants that custom look of a dual exhaust on a late model vehicle that came with a factory single exhaust. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips for that aggressive look and sound of a dual exhaust system. Recommended for towing applications.

Single Side Exit Exhaust Systems (SOS)
The Flowmaster SOS system is for the person who wants a subdued, but custom look, with all the benefits of a Flowmaster exhaust system. These cat back systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location out the side behind the rear tire of the vehicle.

Single Rear Exit Exhaust Systems (SOR)
The Flowmaster SOR system is for the person who wants a subdued but custom look, with all the benefits of a Flowmaster exhaust system. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location either under the bumper, or through the valance at the rear of the vehicle.

Muscle Truck Exhaust Systems (DOSS)
The Flowmaster DOSS systems are designed to give your late model truck the custom look of a NASCAR race truck. These ''Muscle Truck'' systems feature mandrel bent 16 gauge aluminized steel tubing custom bent to fit your vehicle, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips exiting in front of the rear wheel for that aggressive look and sound of a dual exhaust race vehicle.