Postby smj999smj » Thu Jun 04, 2020 2:35 am
There aren't any tuners that can change the transmission shift timing that I know of. Most of the tuners will give you several tune options, such as tow mode, economy, 87 performance tune, 93 performance tune, etc. I believe the Bully Dog GT gives you some data monitoring options, like trans temp? UpRev is a custom tune and good if you are going to get serious into mods, such as eliminating the converters and installing long tube headers, etc.