Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!

2004 lb7

  1. EFI Live
    If I get a tune built for a stock trans, and get a built trans, do I have to pay the whole price again if I want to upgrade to the built trans tune?? Same goes if I want to get a bigger turbo than stock, ect just wondering.
Top