Originally Posted by 2011lilred
I've solved the "smaller-tires-but-no-tuner-available-so-the-govenor-kicks-in-at-1000ft-problem". Hypertech makes a speedo calibrator that IS compatible with the 2011 up computers - I am running one in mine right now. Works just like the handheld tuners but only has options to check and clear DTCs and correct for tire size. I haven't had the opportunity to run at the track with the new set up, but my speedo is accurate with 30 inch tires. (had to tell the computer 29 inches!?)
Hmmm....I don't understand the 29" part--why?