Needswings has the dyno sheets on here somewhere or you can just email him. sales@needwings.com. You misunderstood what I said, I didn't shave 5/100ths off my time I shaved 5/10ths. That's a half second, and no I wouldn't expect the same on a NA. Just because it increased air for our superchargers. I would expect 2/10 tenths off your fastest time under the same conditions. My best run this past winter with my stock car and tires was 13.26 or 13.28. Don't remember but I did post my time on here way back. I would have to look at my slips. A week later when I got the intake with the same beautiful conditions, I ran a 12.72 with stock tires. That was the best I did with just the intake. With adding a 178mm ASP pulley and drag radials I was able to get down to 12.52. I think with drag radials I could have hit 12.6's. I have put off an ECU tune, but others have cut alot of time off with one. The group buy hit 30 people so it is the cheapest your ever going to be able to get one. Most of the other forum members are just getting able to hit the tracks, so it will be interesting to see the real number comparisons.