When i went to the track for my 1st time EVER I got a 14.2 @ 99mph. With the gauge it said 13.6-13.8. I did it twice. Mods are 1.9 RR, springs and retainers, 104's, 180* Tstat, 3.4 MPS, PCM, 3" DP, CAI, alt rewire, fuel pump rewire. I also went on the Aeroforce site and it said that it is actually pretty accurate if you have little to no wheel spin. Can be within .2 sec. When I did it I had minimum wheel spin.