Thanks for the reply. My truck also has low power until it warms up. I am only running the tow tune.....not higher tunes. I am wondering if maybe the tunes just needs to be updated due to the no power characteristic until it warms up. Maybe the turbo brake function has a update as well. When the truck was stock I could not discern whether or not it was working or not. Coming from the 2011 dodge w/ manual trans w EB on it was unmistakeable it was on or off. So does Innovative diesel have it's own tuning or is it someone else's. Maybe I should call Innovative and let them know my experiences. Heck there might be a update.