Wow, where to start. Well, in a nut shell if you want to run the highest program with TNT R, you will need Built trans or dual disc clutch Big single or twins (I recommend twins for driveablity) Head studs Valve springs Fass system Now, lets talk a little more about what you want the smarty to do for you. The highest level doesn't always yield the best performance on all trucks. Give me a call, lets talk about it. I bet there is some middle ground here.