I am gonna be getting a hatch with a gsr motor and I am gonna custom build a kit for it this summer. I am still trying to decide and learn the sizings of all these turbos(I come from all motor land..lol) I want around 300-350 whp....would just a t3/t4 be alright? Or something like a full t4...60 to 1? I also was wondering what size A/R should I go with? Sorry for the newbie questions, I'm just trying to learn. Thanks a lot...