of torque and offers performance only the new Shelby Mustang GT500 can match. In addition to the supercharger, Roush equips each Mustang Stage 3 it builds with an active exhaust system offering ...

or possibly Roush. It doesn't matter, because the simple change in exhaust components should be enough to satisfy Editor Turner's occasional rant that the new Mustang has become "too civilized"-a ...

And when Roush invites you out to drive its fastest new ... side. At that point, there would only be a few badges that give away the powerful nature of the car. Well, that and the exhaust. This ...

where Roush's new Performance Products division unveils the Roush Stage III Ford Mustang. Roush has quietly been selling Stage I (appearance package with side exhaust) and Stage II (modified ...

I'm really impressed with the Roush chassis modifications. The car is well damped and offers a level of (relative) refinement that is better than any other Mustang ... a new exhaust, and a ...

something that the Mustang desperately needs. Roush’s new TrakPak also includes an active exhaust system with an electronically controlled valve that can be operated with a console-mounted ...