i reckon the cheapest performance $$$ are rb25 turbo, walbro fuel pump, turbotech bleeder, exeedy HD clutch, front mount (which you have) 3inch exhuast (which is has) and safc if you dont want to get any more performance otherwise get a re-tune chip, will net you around 180rwkw, then dump some coilovers in the car, strut braces, and get some lucas brake pads and you will have a good street/track package. as for looks get some side skirts, rear pods, nice set of 17 inch rims