i always recommend stand alone management, bigger injectors, and intank fuel pump. hondata aemEMS are good ones etc etc i have the hondata s200b.. management is the main thing in boosting a car that wasn't meant to be boosted.. everything else is secondary.

the right sized turbo... I have the t3/t04e ( i don't know the specs because it was never imprinted on the turbo) , free flowing exhaust (in my case i have the cutout open dp 2.5"), sufficient front mount intercooler (i have the one from drag.It should be good up to 350-400 hp or so..)

that's about it.. pretty basic. the main thing is fuel... you skim on fuel, you shouldn't boost at all.