Just bought my 04 lly. It has 115k on it and it's all stock so far. I'm going to buy a PPE Hot +2 with 90, 120, 300, and 350 tunes. I plan on running the 90 mostly but if I ever dynoed or dragged it I'd like to crank it up a bit. What do I need as far as tranny mods to hold this in a daily driver?