Dominating Exhaust Sound. Level up your Ford Mustang GT’s exhaust sound by replacing its stock system with Corsa’s Xtreme Cat-Back Exhaust with Polished Tips. Acoustically engineered and tuned, this Corsa Xtreme Cat-Back will give your 5.0L V8 Mustang a throaty, aggressive sound under acceleration and a deep growl at idle, all without any annoying drone while cruising. As an added bonus a Corsa Xtreme Cat-Back will also improve your Mustang's exhaust flow by 48% for an increase of 5 RWHP and 4 RWTQ.Race Car Growl. Corsa Performance Xtreme Cat-Back Systems feature a very unique double helix X-Pipe that replaces the factory resonator Mid Pipe. The double helix "X" crossover design not only helps improve exhaust flow for an increase in power, but it also adds a crisp raspy, race car growl to the sound of your Mustang's exhaust.RSC™ Technology. Corsa Performance engineers all their mufflers using their very own patented Reflective Sound Cancellation® Technology (RSC™). RSC™ Technology is designed to give your Mustang's exhaust an aggressive sound under acceleration and a drone-free experience while cruising.Quality Construction. Corsa Performance proudly manufactures their Cat-Back Exhaust systems right here in the good ole USA. This Corsa Cat-Back is mandrel-bent from 3 inch diameter, premium grade, 304 stainless steel tubing for excellent exhaust flow and enduring corrosion resistance. The system includes a double helix X-Pipe and two high flow, straight-through Xtreme mufflers. The mufflers feature a pair of polished twin 4 inch Pro-Series tips.Simple, Bolt-On Installation. There won’t be any drilling, cutting, or welding when installing this exhaust. All it calls for are a simple bolt-on procedure and 2 hours of your time.Application. This Corsa Xtreme Cat-Back Exhaust with Polished Tips is designed to fit 2018-2023 GT Fastback models not equipped with Active Exhaust.