Youre right. didnt realize it was so small. thanks for the offer though.

Stock tire size is 245/45/17

New size is 245/40/18

2006 GTO using 7191 with latest version.

Ive been thru every menu and cant find where to adjust tire size.

I purchased new rims and tires and would like to make the proper adjustment but cant find it anywhere.

Can anyone direct me to the right place?

Spoke with Tech support, the unit is defective and I have to return it. But of course the place where I bought it has none left so I have to wait, major bummer.

I plan on updating but have to buy the cables. It would be nice to drive to Radio Shack with my new predator tune in place though. I do have the key in the "on" position. Tried it in "ACC" and "ON" and every which way.

I did NOT remove any fuses. I have been told that it is not necessary with my ...

New predator, using on 06 GTO with LS2. I get the reading above. It wont read VIN or basically communicate with the car at all.

Unit has version 7r97....what can I do to rectify this?