Originally Posted by Jesal@Project 808
Whoa what a difference.
How did they do it?
I had two DMH electric cutout valves installed right after the x-pipe effectivly eliminating the stock muffler.
Them I instlled AA's X-pipe with HFC's. I am still using my stock muffler but with a push of a button I can bypass the mufflers and run throught he AA X-pipe only! It's pretty awesome but loud when the valves are open! With them closed it's deffinatley louder than stock but totaly acceptable for daily driving.