Reviewed By Brian M (MCHENRY, IL) Reviewed for a
—1/22/2016 5:46 AM
The Hypertech Speedometer Calibrator worked perfectly on my 2015 Ram. I have 37" tires, and was able to adjust for the increased size. Speedo is now accurate.
Reviewed By Tim B (ATLANTIC BEACH, FL) Reviewed for a
—1/9/2016 3:29 PM
It gives me more power& take off.
Reviewed By Gary W (EVANSVILLE, IN) Reviewed for a
—6/3/2015 5:01 PM
This is rather easy to install and makes an obvious change in performance. I would tell others to buy this.