I have the stage 1 delete. Bought used for a steal a few months ago. First time pulling a trailer with it I noticed with the tow/haul activated the truck would sometimes shift in to 8th gear. I thought when using tow/haul the truck would stay out of 8th gear? Temp numbers were never too high, so that was never the issue. Mostly just my observation.
No, transmission tune was not included….at least that I saw on the purchase paperwork.
No, transmission tune was not included….at least that I saw on the purchase paperwork.