The Bully Dog torque plate and AFC spring kit were the first mods I did after the gauges. I got their Stage I plate, which is rated about the same as the # 11 TST for my truck. It certainly made a difference, but I don't know how it compares to the TST version. I'm trying to find a picture of a number 11 to check it against (had mine out yesterday and took a few photos of it). It's not much different that the stock plate at first inspection.
-Jay