When HP Tuners first came out, I remember there being an issue with calibrating the speedometer on the drive-by-wire V6's. Does the current version suport the calibration for my car?
Also, since I switched from a 3.23 to a 3.42 rear end, my cruise control does not work above 75 mph. Does anybody know if calibrating the speedometer (or adjusting anything else) will fix this problem?