Banks is your problem if your running their chip. Their " tuning" does nothing but trick the computer into fueling harder by screwing with icp signal and a few other sensors I can't remember. Your best bet is custom tuning on a 6 position chip from swamps, php ( power hungry performance), tony wildman (ts performance). They tune engine parameters and transmission shit points and what not. Best bang for your buck and they will tune the truck for what ever has been done ( exhaust, intake, injectors, big oil mods) and will safely get more power without trashing the transmission. And stay away from DP tunes.
Fat fingered from the phone- Corey