2015-2021 Subaru WRX STi Muffler Delete Quad Tips Cat-Back Exhaust

Compatibility: 2015-2021 Subaru WRX STi

Material: T-304 Stainless Steel

Surface Finish: Anodized Silver | Chrome Tips

Type: Cat-Back Exhaust

Exit Type: Quad Tips

Tip Wall Type: Double Wall Tip

Tip Shape: Round Angle Cut

Exhaust Tip Diameter: 4 Inches

Exhaust Pipe Diameter: 2.5 Inches

Mid Pipe Diameter: 3 Inch Split to 2.5 Inch Piping Mandrel Bent Piping

A cat-back exhaust system is an aftermarket upgrade for a vehicle's exhaust system that replaces the exhaust components located after the catalytic converter. This typically includes the muffler, resonator, and piping. The purpose of a cat-back exhaust system is to improve exhaust flow and enhance the sound of the exhaust note. By reducing exhaust restrictions and back pressure, a cat-back exhaust can improve engine performance and increase horsepower and torque. The name "cat-back" refers to the fact that the catalytic converter, which is responsible for reducing harmful emissions, is not replaced or modified as part of this system.

Professional Installation Is Highly Recommended!