There is absolutely no way i can adjust the tire size on my PCM if i have a 97''

with any tuner correct ?

 

no the adjustment has to be done with a small plastic gear in the transmission. a local shop on my area did it for 50 bucks and recalibrated the speedometer. the only down side is now the omputer thinks its going faster than it really is so i get the cut off at about 85 mph. i am going to get a troyer xcal2 to eliminate the top speed limiter and that should solve the problem, and give a bit more performance from my v8 4.6.

 

ok thanks