I know this is old but I put on 285/75/17 NITTO ridge grapplers tires on and just ordered the jscan because my speedo is +2 to 5 and I think the shift points are off. My mpg is 16 on highway.
What tires measurement did you use for your calibration? I've read that just putting in the actual...
I agree. I bought my sport last week and am just kind of looking at upgrading my tires.
I have stock black rims that I want to keep. Would having a tire store mount them for me offset the savings?