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Review on 🏎️ Enhance Speed Accuracy with Rough Country Speedometer Calibrator for 2018-2020 Ram 1500 Truck - 90019 by Adam Browning

Revainrating 3 out of 5

My speedometer is correct now but it was a pain to get there!

If I had to do it again I would just pay the dealer to change the tire size. I went up 1" from the factory, but set the programmer 1" smaller than the factory, which is 2" off the advertised tire size. You must measure the actual tire size and subtract 0.5 to 1 inch for it to display correctly.

Pros
  • Good product for the price
Cons
  • Some cons