Welcome JJJ, GS, great choice!
As for mods, the ones people tend to go with are the exhaust, Larinis mainly. Start with the back boxes and mid pipe, then add the cats if you want more noise.
On the engine side, you can have them mapped to about 440bhp or you can get the bolt on Formula Dynamics piggyback ECU and DBW system, contact Performance Italia for a quote.
Other mods are usually brakes, better pads, and some have done suspension too, dropping the ride height and fitting new FD springs and spacers.