If I get a tune for my truck, either for my 4.3 (or my future 5.3... Which will NEED it, so it doesn't throw transmission codes
) Will I still be able to use my Hypertech programmer to change the tire size?
I have two sets of wheels/tires, and they're different sizes... Accurate speedometer is a requirement for me when I use my truck at work
I have two sets of wheels/tires, and they're different sizes... Accurate speedometer is a requirement for me when I use my truck at work

