my suggestion is to drive the car for a while to get a feel for it in stock form first (i went ~10k miles before modding). then decide what you want to change. most people go for power first. if this is what you want more of, do what others have already suggested: em, tbe, custom tune. that alone will get you about 300 awhp. if you're not satisfied, then the next mods will likely need to be: turbo upgrade, new injectors, new fuel pump, fmic, etc. my suggestion, however, would be to do suspension first. springs (i.e. jdm pinks, prodrive) and hardened top hats would be a good start. front and rear swaybars and an alk would be good too. i also suggest the tic super shifter kit. eliminates the slop in the oem shifter. in the end though, you paid for the car, so do what you want to it. the most important thing is to enjoy it!