Enjoy! there are not really many problems with them other than the turbo (mines yet to have issues @ 120,000k)
Brakes are a bit shit house, get some slotted rotors for a 350z touring(non brembo) for the front with some decent pads.
Air filter is from many jap cars. i think i searched a wrx or similar and got a k&n one for about 60 bucks
otherwise enjoy! i've put about 20,000 on my car since owing it and not had any issues at all.