Hypertech 732500 Speedometer Calibrator Review

After I updated the device, everything became very easy. To get an accurate calibration, you'll need to do some measurements and calculations to calculate your actual tire size, or verify with GPS trial and error. My 35s aren't actually 35s, and it turns out that using 33s gives me an advantage in accuracy. Still had to use another device to reprogram the ABS tire size.

I followed the instructions and went to the programmer and found that before I could program the device I had to update it over the internet. After the update, I went to my car and set the correct tire size and differential - very simple. Test drive, the speedometer corresponds to the money, I used the GPS speedometer to check. The shift points have also changed somewhat and actually handle better. Before recalibrating my speedometer it was about 10mph too slow with the bigger tires, now…

Purchased for use with the Corvette Trans 2000 manual transmission. After selecting the tire size, you will be prompted to select reverse. This application is programmed to select between 2.92 and 3.15 which are not designed for manual transmissions. It doesn't give you the option to skip the gear ratio selection, it just puts you in a continuous tire size selection cycle without being able to leave the gear ratio unchanged. It is only through trial and error and selecting the wrong tire size…