I had those mufflers, droned bad! Pypes race pros no more drone. Not louder by my ear and picked up a bit. Do not buy the violators, loud and sound bad. I have TTI X pipe. Reversion is really cam timing and intake design.

best of 11.24 at 119 mph 1.60 60’. 68 340 S Barracuda Fastback F.A.S.T [IMG]http://i67.tinypic.com/2mnnnnt.jpg[/IMG]