SmokeyJoe101

So I just got the BDX and I am wondering is it best to tune the tire size so the speedo reads correctly or change the tire size so it is correct on the display. Mine is way off my example is ___. I ha e 315/70/17s and to get the speedo to read correctly I must change the tire size on the programmer to 32.5, which of course is not what you would expect....

techrep

iTrader: (1)

What’s a BDX ?

SmokeyJoe101

BullyDog BDX tuner

techrep

iTrader: (1)

Change it on the tuner

SmokeyJoe101

Read the first post

techrep

iTrader: (1)

I did... change the tire size on your tuner ... that will fix the speedometer. That’s what we all do to correct it. Just not familiar with the bully tuner.