Guys who went to 35's . . .

[HummBebe]

Originally Posted by JWSchmidt3

Here's another issue, I bought the truck new from the dealer with this package installed (they call it the Xtreme Comp Pro package). The sales guy specifically said, "Oh yea, it's all been re-tuned for the bigger tires, intake and exhaust. They use the Tech-II". My extensive modding with Corvettes told me he was probably full of it, but I'm now holding them to it. I'm just curious if anyone else had such a drastic impact when they changed to 35's, or if I have another issue.

That is an outright lie. There is no Tech II program for tire increase to 35". Only from 32" to 33".