First post the forum! Newb

[Acrocha3]

Hey guys I'm Andy from Colorado, about a week ago I bought a 98 gsx from the second owner, had the dealer sticker with it and everything! It's 100% stock minus an hks bov, 133,000 miles, the maintenance was done properly and on time, right before I bought it the guy put a new timing belt, clutch, full synthetic oil change, and a crank sensor...I know my way around these cars a little bit but on the upgrades/performance side not so much...my plan is too build it as a pretty quick daily driver until I can get another car and turn this into a fast ass track car...so for now I'm wondering what would be some first upgrades that will boost my hp...already have a 3" Megan catback on the way but other that what should my first mods be? Fuel,turbo, fmic...? Some advice and direction would be great, thanks!