data logging has never worked for me, i consistently get initialization errors, tried it on two different laptops (PC & Mac) unplugged and plugged in all different ways. besides that i cant even get my xcal2 to work 60% of the time, period.
03 SVTF #3804, full suspension, CM FX300, Torsen LSD, no cat, dual exhaust, Tom's tune. 167whp 154 wtq (dyno jet) and some other stuff. dyno- http://www.youtube.com/user/ken6x6#p/a/u/1/cKH4FX7c9L4