RE: Gibson super truck exhaust?
Someone on this site has the gibson, and they are really happy with it, and yes they have sound clips, they will come on sooner or later in the next day or two and probably post a link. I have heard it, and it does sound good. I have the file on my comp... but I cant post it, too big.
Anyways, good luck. Thats wierd that the flowmasters are quiet though...