A friend of ours installed a Quick Time Performance muffler bypass system. It allows you to flip a switch and bypass the muffler, 100%, 70% or any amount you want.

Talk about a mean sounding ride. You can dial the amount of "roar" you want.

I'm installing a set in a couple of weeks. It's $300 plus install. A great alternative to an full aftermarket exhaust system or an add to such.

http://www.quicktimeperformance.com/QTEC/index.php

Wow $300 doesn't sound like a bad price

The example they give is an LS1 Firebird that only picks up 13 HP for probably a LOT of racket...I dont know about you guys but I don't need to get any more attention from John Law...ya know?

One of the guys I know had a set of cutouts (THEY WERE NOT QTP's) and after a very short time they quit working. Took them apart and found out they had !*PLASTIC*! gears in them. Oh boy!