CORSA's catback exhaust systems for the 2015 Subaru WRX and STI feature 3" stainless steel mandrel bent piping and dual exit configuration with twin polished or black 3.5" tips. These catback systems are categorized with CORSA's "Sport" sound level which produces a deep growl at idle and screams in the high RPM's but creates no drone during cruising thanks to CORSA's RSC Technology.
Patented RSC Technology allows CORSA to acoustically style the sound of your vehicle to give you the true voice of performance without the annoying drone while cruising. Straight through nonrestrictive system design maximizes airflow improving performance and fuel economy. All components; even clamps and hangers; of the system are constructed of premium grade stainless steel to ensure the look and sound of your CORSA system that won't change over the life of your vehicle. Proudly designed and manufactured in Berea OH USA. Quickly enjoy the CORSA sound with an easy bolt on installation. No welding needed and all hardware and detailed instructions are included. Limited LIFETIME warranty for as long as you own your vehicle.