[drdisque]

downpipe, bigger injectors, fuel pressure riser, and some way to tune it. Also a boost guage and a boost controller if you want to boost above the level on the wastegate spring. You'll probably also want a blow off valve of some sort as well as new intake piping. You also need a pipe from the turbo to the throttle body, or if you're getting an intercooler, pipng to it and then the throttle body. You also need oil lines to lubricate the turbo.