I would love it if Allen/farmtruck would respond to this.

Anyone have one tuned yet? How big of a difference? What was done to the tune? I can tell that the TM is killing this truck. I also have no clue what the 6L80 can handle.

I have HPTuners but haven't downloaded beta version of 2.23 yet, so for now, I get a TCM "access denied" code. I think I'll wait until they officially release the version before I download my computer. With the help of a friend I did the tune on my blown Avalanche myself but I'm not as brave with this brand new truck and it's warranty.

I'm not willing to give up any mpg at this point but I know this truck has a lot more in it.

(Specifically for Allen, if I pull my tune, email it to you, will you mod the tune, let me load it, that way I have my original tune if if has to go back to the dealer for any reason? I can send logs under any situations that you want if you would like. I don't expect a discount, I just like having the stock tune stored and reloadable in case it has to go back to the dealer)