Give your 2015 - 2017 5.0L Mustang a more aggressive sound and boost performance with a ROUSH exhaust system. 2015 - 2017 ROUSH Axle Back exhaust systems are constructed of corrosion resistant T - 304 stainless Steel and are mandrel bent. Mandrel bending maintains a constant inner diameter with no kinks or creases. This improves exhaust flow and reduces backpressure in the system. This system includes single tip High flow mufflers that improve the stock sound of the Mustang V8 This system will produce louder deeper exhaust tone, with a healthy V8 burble at idle, building to a powerful roar at high revs. Check your local noise ordinances for legality.