Reviewed By graham b (GRAND PORTAGE, MN) Reviewed for a
—6/14/2013 11:44 AM
The install took about 5-7 minutes and it did exactly as advertised for the performance.
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.