While aftermarket louvers are already available for the new Mustang, none have been designed by Jack Roush himself and engineered by the same team that produced the ROUSH 427R. The official ROUSH ...

We normally associate with Roush Performance with the Ford Mustang, as we've tested several examples over the year from the race-ready 427R Trak Pak to the current 540 horsepower RS3. The Michigan ...