Jun 05, 2017 - 07:42 AM
The inTune and Trinity offer 2 different options for entering the correct tire size for most applications.
- The first method is by the sidewall numbers, such as 245/45-18. In this method, you’ll be asked to enter the width in mm (245), the aspect ratio (45), and the rim size (18), then apply that change to correct the speedometer.
- The second method is by overall tire height. For best results, measure the actual height of the tire at operating pressure, and enter that value, generally in the 28”-36”+ range.
Either method will correct the speedometer for you. Keep in mind, if you have factory sized (or factory height) tires on the vehicle, there is no need to make any adjustment here.
Diablosport Tuners will only work with factory emissions components in-place.