KuHL 951

I have the Flo Pro V5 on my Turbo: http://www.flopro.com/VForce.htm. Personally I love the rich sound, mellow at idle, very authoratative under boost, and a subtle rumble on throttle lift. Can't beat the price ($45) if you are just experimenting and don't want to be stuck with it forever. They are aluminized steel so I'm not concerned with rust out in our milder climate out here. I can't see dropping big bank on stainless steel cat-back components unless you plan on keeping the same exhuast for the rest of your life. I've never heard one on an N/A though.

Steve