I am planning on getting the spoolin stage 2 this summer.... However i would like to do some different mods right now. I wanna do the injen CAI and some type of headers (does anyone know of any good headers for the p5??) and exaust to get my baby breathing nice and deep. I just wanted to know if this stuff is compatable once i get the turbo??? or will i have to change it all??? Also question about the turbo. Does the tranny handle the turbo well?? Is it really taxing on the engine?? get at me guys.