Speedometer calibration

[David5.7]

I'm going to get new tires 305/55/20 and I what to know what are you guy that have different tire size then oem doing or what are you using to correct yours speedometer

 

[Ruflife]

Just ordered the Hypertech unit to recalibrate.

 

[David5.7]

Just ordered the Hypertech unit to recalibrate.

Were did you order it from?

 

[Ruflife]

Partsgeek. Hypertech #752504 - $170 shipped

 

[deanfx]

With the RC speedo tool do I need to unplug all the fuses in the instructions or just do it?

 

[chad202]

I didn’t unplug any fuses. Just turned off radio and AC.