made 466 hp and 507 ft/lbs with the exhaust on....It was a bad setup anyways for a turbo. spintech's and some other pieced together crap. so about 30 hp gain and 60 ft/lbs. Not too shabby for the noise trade off.
Meach..guess what we did. I went to Blake's tonight to fix my clutch cable. We took the exhaust off so I only had the down pipe. We threw it on the dyno just out of curiousity.....498 HP and 569 ft/lbs. That was only up to 5400 rpm's when it starts to lean.