I really liked the sound of Flowmasters cat-backs, but I just hear so many things againts them. But they do give that rumbly sound.
Ted on the boards has a Magnaflow 3" cat-back on his Iroc, with headers & a High-flow cat. If he didnt have the exhaust leaks at the collectors it is a very beastly sounding exhaust. Plus the large 4" tips look really really good.
__________________
|