Tire size question

[DodgeDan]

I have a 2010 Dodge Charger 3.5 v6. I'm running the 89 tune. My question is regarding tire size, some Chargers came from the factory with 17" wheels, some came from the factory with 18" wheels, both were available as stock wheels. Mine is one with stock 18" wheels. What wheel size does the canned 89 tune use, 17" or 18"? Do I need to go in and do a quick adjust or is it already set up for my stock 18" wheels?

[Mike_Levy]

Its setup for whatever the car came with stock. All that info is in the computer. It knows more about your car then you do.

[DodgeDan]

Cool, thanks Mike.