Perrin Cat Back Exhaust, Non Resonated – 2015 STI
People may be impressed with your 2015 STi. But not gold gymnast McKayla Maroney! Alright, she might be alittle, and you may not be aiming to impress anyone. The least you can do, for both your 2015 Subaru and yourself, is to get an aftermarket cat back.
An aftermarket cat back exhaust generally consists of wider tubing, and wider tubing means increased exhaust flow which is when your STi will proudly travel with much greater power. The Perrin Cat Back Exhaust Non Resonated 2015 STi can step in here.