Race Tuned Catback Exhaust Fits 11-12 Ford Mustang 5.0 Agency PowerAgency Power created an exhaust system that portrays the right exhaust note without sacrificing power on the naturally aspirated motor. The 3 Inch stainless steel piping and dual muffler design gives the Mustang GT a true race quality sound without robbing the car of performance. Like all Agency Power exhausts, durability and look are just as important as power and sound. The dual exhaust is TIG welded and finished with a mirror polish that is