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

Compatibility: 2015-2021 Subaru WRX STi Material: T-304 Stainless Steel Surface Finish: Anodized Silver | Burnt 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. Pro