There's a stretch of road around here that we've(the local street racing crowd) had good luck with using a G-tech pro. And by good luck, I mean we have repeatedly stopped there on our way back from the track and nobody's results varied by more than a 10th from what they just finished running.
Long story short, I took my p71 down there last night and only had enough time to make one clean run; 15.3 @ 90. 2.3 60ft. 0-60 in 6.89.
My car's a 2002 P71 with 3.73's. My rear cats are chopped out, and my factory mufflers are replaced with flowmasters, still using all the factory pipe. No other mods.
See I agree with you belt. I think it's more plausible that they go 15.8-15.9 stock and my mods were only worth 1 sec/5 mph then believing the mods did twice that. I think they just don't know how to test or something? Of course then again the major car mags all claimed the GTO went 13.4-13.5 and most LS2 guys (including myself and John) got 13.0's...
Who knows. All I can say is what MINE did I guess.
I went back and looked at that 2003 review.
The comparison between the 02 & 03 data showed improvements in almost all the cars' performances (not the H1), at least by a little. Again, who knows.
