Give your 2015 5.0L Mustang a more aggressive sound and boost performance with a ROUSH exhaust system. 2015 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.

Now available from Lethal Performance is a great sounding exhaust combo kit that we have run on our very own 2015 Mustang GT. Choose from the Lethal Performance H or X resonator delete to go with the Roush axle back.

Lethal Performance resonator deletes are constructed from 2-1/2" 409 stainless steel and removes all 2" sections from the stock exhaust, something no other resonator delete does.

The Roush axle back is built from 3" T304 stainless steel and features 4" polished stainless tips. Offers a very loud and aggressive tone during WOT and cruise, even when using the OEM cats. Watch the video below to hear how great this combo sounds...

Convert your ROUSH Quad Tip exhaust to a full Active exhaust and take control of your Exhaust note. Our Active Exhaust upgrade kit makes any 2015 passive quad-tip exhaust into an active exhaust that allows you to “tune” your exhaust note using our iOS application for virtually infinite sound possibilities. The system utilizes an easily installed valve system that adjusts the flow of the exhaust, thereby adjusting tone and volume. “Plug and play” Installation requires no cutting or welding. Included in the kit is a 4 mode selector knob with faceplate so you easily switch to pre-set and custom modes on the fly.