safc fitted tuned $600
highflow the r33 turbo, 360degree journal (bush) bearing with max oversize inlet/outlet, steel wheels, $1300
dont need injectors etc, but yeah youd want 2k minimum for some sort of turbo highflow (GCG are $1950 alone, and you'll want/need some sort of ecu tuning like a safc piggyback)
with a highflow, adj.fpr, z32afm, fmic, 040 bosch pump, 3" exhaust, 2x piggybacks (safc/sitc) I get 190rwkw from a basic tune at 12psi.