Originally Posted by RPiM5
Yo what's up BigLare! Sorry to see your M3 go! Did you see this thread yet? Dude from Texas did an independent dyno on a Mustang dyno and on his 3rd pull achieved 562whp and 524wtq with just the RPi exhaust.
Thanks for the link. Looks like there is some nice power gains when you open up the exhaust. Looking forward to some other dyno test results (before and after) as well. I know you like it loud so I'm looking forward to your catless straight pipes!