hey a i got series 1 skyline and im in a bit of a rebuilding process. have put in new cams, pistons, headgasket. now i want to replace the turbo. i got the standard one but i was wanting to bump up the power a bit. are the r33 gtr turbos the same as gtst or what model are they. would u recommend a better garrett. im not looking for huge power just want a nice 250-300 rwkw. can any1 help me. thanks. also any more tips on refreshing the motor?