Originally Posted by drkay

Yes, one of the criteria for my exhaust was no rasp and no drone on the highway while cruising. it's a header back fast intentions system. Resonated high flow cats, 18 inch resonators in the cat back and their largest quietest traditional oval mufflers. I love the sound. Around town it just purrs and it's silent while cruising.



If you decide to go with test pipes and you're goal is just decibels then I would go with the cheapest ones you can find. . .

Originally Posted by m3clubracer

Bypass valves welded to the exhaust and you have stealth and sound.

Originally Posted by butwhatuptho

I am by far going for the sound barrier break... im already heard from blocks away... id almost want to be heard from miles away too

Originally Posted by RWizzle

You lose any hp from the lack of back pressure? I'm interested in doing this to my g37, but want some stats.

Originally Posted by RWizzle

You lose any hp from the lack of back pressure? I'm interested in doing this to my g37, but want some stats.

Originally Posted by Kris9884

No, but don't do it. If you want a loud car, get a V8 and delete the mufflers so you can be like every other GT/Coyote Mustang.