Give your 2015-2017 Mustang GT that ROUSH Performance Look, higher performance and race-inspired exhaust note. The 2015-2017 ROUSH Quad Tip exhaust is an axle back kit with high flow dual tip mufflers, corrosion resistant T-304 stainless steel and high flow mandrel bends. Dual wall chrome flashed tips are a perfect fit with the 2015-2017 ROUSH Mustang Rear Valance. This kit can be easily upgraded to an Active Exhaust with ROUSH Performance's Active Exhaust Module a simple bolt-on process that requires no cutting to the exhaust.This exhaust kit will only fit 2015, 2016, and 2017 Mustang GTs. This exhaust system requires the addition of the 2015-2017 Mustang ROUSH Rear Valance, which comes in two different configurations: Prepped For Backup Sensors part #421919 Not Prepped For Backup Sensors part #421894Check your local noise ordinances for legality. Quad Tip Exhaust Kit for V8 2015 ROUSH Mustang 2015-2017 5.0L Mustang, Manual and Automatic Transmission, Coupe and Convertible