So if you're not thinking on getting a bigger turbo and go all out. I would go with the STi. A basic bolt-on STi tuned would put you right at low 300whp. All you would need would be a downpipe, exhaust, and EM. You could get an intake if you want that pssh sound, but its not really needed. Til you're making alittle bit more.

I'll be back to answer more questions, im about to jet.