I've tried them all....
There is no escaping the V6 sound with any aftermarket muffler.... however you can still make it sound good.
The best deep sound I ever got was while in between the exhaust set up I cut the tailpipes off at the muffler on a generic single in/ dual out OE replacment type Turbo muffler.... but the interior resononance was so huge, I'd get headaches after a couple minutes. And my sterio couldn't go loud enough over the resonance.
I had a Flowmaster Delta 50, lasted a week before cutting it off and welding up a Magnaflow, that too sounded awful & ricer so I opted for the quietest aftermarket muffler I could find, the Dynomax Super Turbo. I had that for a long time until it developed an internal rattle from a loose baffle. So now I went to the other end of the spectrum and welded up a Flowmaster Super 40, and ya know. I'm happy with it. It obviously sounds like a v6 in the higher rev & accell, but a healthy v6. Idle, light throttle and cruise it sounds like a beefy 8
I don't have a clip of mine, yet.
However here is a buddies 4.3 S10 with a Flowmaster Super 40, He does have magnaflow cats & custom Y-pipe... but mine sounds similar.
http://videos.streetfire.net/video/9...d60022ec4d.htm
http://videos.streetfire.net/video/d...3601415ca6.htm
I hope this has helped, Cheers -Mykk