arp rod bolts, arp head studs, wiseco or some other decent piston brand, and either eagle or pauter rods. hell you could almost get away with it being stock, but i wouldn't recommend it lol. 15 psi is different depending on the turbo. something like a 57 trim t3/t4 or a garret gt28r would work nicely. stock valvetrain will be fine, so long as you don't intend on revving it higher than the stock redline. If you are getting upgraded cams and intend on bumping up the rev limit, then you obviously will want to get some better components in the head, i.e. titanium valve springs/retainers.