Injectors(sti pinks at a minimum) fuel pump(wb 255 is a good choice and not expensive) upgrade your tmic or go fmic just be ready for more lag and its prob not a good idea on stock turbo...i dunno any other opinions on that?? Maybe bigger turbo then retune. Depending on turbo you may have a nasty little toy:-). Vf 34 is very popular, so is a 16 or 20g. Take a look around this site. Lot of good resources here and guys that know what's up. Good luck man!
Cobb ap stage 2 ots, catless uppipe, catless turboback, Cobb Sf intake.