Your cart is empty.
Your cart is empty.Hypertech's Speedometer Calibrator can correct the speedometer for tires up to 54 inches depending on the application, and/or non-stock rear gear ratios. Simply plug Hypertech's Speedometer Calibrator into the vehicle's under-dash connector, select the new tire height and/or new rear gear ratio, and in a matter of minutes, the vehicle's computer is reprogrammed for accurate readings as required by law.
Richard murphy
Reviewed in the United States on March 18, 2025
Worked great on my 2017 Ram 3500.
krivs388
Reviewed in the United States on April 11, 2024
This speedo calibrator worked perfectly on my 07 Ram 2500 with the 5.9 cummins. I have larger 18" takeoff wheels from a 2022 Ram on my truck and that had my speedometer off by a few MPH. That not only affected speed, but also the shift points onn the transmission. The hypertech calibrator quickly adjusted my speedo without issue and the speed is right on point with my GPS. The code reader capability is also a nice touch as well. Definitely recommend even though it's a bit pricey.
BB
Reviewed in the United States on January 11, 2022
Updated tire size from 32" to 35" and this device did the update as described. No complaints except the price is steep for what to get. I made a chalk mark on the pavement and the tire and measured one revolution to the next chalk mark. The result was within .5 mph compared to the GPS speed. I would be leery of just entering the advertised tire diameter as I only wanted to do it once. I have a 2006 Ram 2500 CTD.
tina mcgee
Reviewed in the United States on November 8, 2021
It didn’t work for my truck
Recommended Products
