My first dyno was this past spring with the Extrude Honed upper intake, SVT exhaust, KKM, and strait inlet pipe. My best run was 133.4 hp with a very flat torgue curve around the same numbers. I dynod again Sat. with the SHO Shop y-pipe and 60mm TB. This time I ran 142.8. So I gained 9hp with the SHO-Shop y-pipe and 60mm SVT TB. I lost some at the bottom end but gained above 4.5g's. I think I will switch back to the 55mm TB for the low power. I can feel the difference between the two TB's though. The car begin's to take off like a turbo. Slow at first then wham here we go. I think for better drivability I'll put the 55mm back on. I was the only one that day to show gains because I went first when the everything was pretty cool outside. The dyno was corrected for everything but humidity. I think the y-pipe made most of the difference in power. I know the conditions would worsen so I'm glad I opted to go first. I'll let Mark and Steve comment on their pulls. I know they were not too happy and swear the dyno didn't show what they felt in their seat pants.
