I have used my HP Tuner on my 05 Silverado, but just picked up a 2022 LTD Duramax and need to recalibrate for change in tire size. Is this possible or do the computers need to be unlocked 1st?
Thanks
I have used my HP Tuner on my 05 Silverado, but just picked up a 2022 LTD Duramax and need to recalibrate for change in tire size. Is this possible or do the computers need to be unlocked 1st?
Thanks