New GM 18" Wheels ?

[MakeAJudge]

When these are available and start shipping will they be a direct bolt on for replacement of the 17" wheels on early model 05 GTOs?

Will there be any computer re-programing, spedo adjustment required if replacing old 17's with new 18"s?

[miscreant]

When these are available and start shipping will they be a direct bolt on for replacement of the 17" wheels on early model 05 GTOs?

Will there be any computer re-programing, spedo adjustment required if replacing old 17's with new 18"s?
They will be direct bolt on, you'll simply need to make sure and get the right size 18" tires (235/40 or 245/40) to keep all things accurate.