Founded in 1983, Flowmaster is an aftermarket manufacturer of performance exhaust systems. The original Flowmaster mufflers were designed to quiet race cars without sacrificing performance. But Flowmaster Outlaw exhausts are designed to deliver a unique, aggressive sound. All while helping your engine breathe better for increased performance.

The Flowmaster Outlaw system is meant to be a direct-fit upgrade. You may have to cut some of the factory exhaust. But installation should be a simple bolt-on procedure after cutting.

Flowmaster cat-back exhaust kits will replace your exhaust system from the catalytic converter back. The catalytic converter itself and the factory exhaust manifolds are retained. You'll be replacing the mid-pipe, intermediate pipes, and mufflers.

Flowmaster's axle-back exhausts offer a less expensive way to achieve an aggressive sound note. Axle-back kits will replace your factory system from the rear axle to the exhaust tips. They're easier to install than cat-back exhaust systems and will cost less. Axle-back exhaust kits usually contain mufflers, exhaust tips, and any necessary mounting hardware.

If you want to boost your Mustang’s performance and give it a killer sound note, the Outlaw exhaust is a great choice.