Performance Mufflers - 3-1/2 Inch Outlet Diameter

Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks.

Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks.

Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks.

5" Tall x 11" wide x 28" long. With a single, perforated core that runs from the inlet to the outlet, this muffler vastly improves exhaust flow. Stainless steel mesh and acoustic fiber insulate the core and deliver a smooth, deep tone.

Essentially a direct-fit cat-back system with less mandrel-bent tubing, this kit improves engine performance and durability by boosting horsepower and torque, all at a lower price. The straight-through muffler allows the exhaust to flow more freely.

Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks.