How does changing tires sizes affect the DIC

[Dave1998]

I am looking at putting the Zo6 tires/rims on my Coupe and I note that the overall height of both the front and back tires are shorter by 5 (mm?). How does this affect the speeddometer reading and the computers ? Thanks

 

[cavettefan]

Yes, changing the wheels/tires does change the settings. You will need to reset the EBTCM to the Z06 setting if you switch to the Z06 wheels and tires. It also can affect active handling if you change the wheels and tires and do not reset the EBTCM. If you do not have a TECH2 and know how to use it, have the dealer do the change over of the wheels and tires.