what submodel is it.
ALmost everyone starts with intake, header, exhaust.
If your just asking what can be done the skys the limit it just depends on your goals with it and what your budget is. Some ideas for the motor intake, header, exhaust, test pipe/high flow cat, intake manifold, t-body, cam,cam gears etc etc
Easy things to start off with if youre not too mechanical is looks. Blackhousing headlights, type r or Mugen front lip, get your exhaust done at a shop, intake. Things lk that.
Btw welcome bro
Welcome to the site...i would check out other members rides and see what you like and start from there..find a way to make the car your own with your own style...post up some pics and good luck with your build.