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Anyone got a canned tune for a stock 08 sierra durimax for fuel economy and or towing?

Bill your the man!!!

Sorry for the dumb questions...This is the first sotware i have owned.

Also our old tuner used hptuners and we were told he used a 1bar map/alpha n tune. how do i go about getting my cable to read/tune this car?

Thank you the guy sent me the info and i set the account up. Now the next question is how do you know whats unlocked for that cable?

I just purchased a V1 from a guy on LS1TEch but i don'e have his customer info. just the cable and CD. how do i get it changed over to me and id also like to upgrade to pro.