You should really get a powrtuner since you are going to be pretty modded. A mail-order tune from any company will never be spot on when you get to a certain modding point. My ZZP top swap tune was terrible (not to crap on ZZP cause I love em) but just goes to show that every car is different and when you're more than just the standard CAI, PCM, pulley, it's definitely hard to make it work right.