Thinking of turning my zs 180 into at track car

[gup160]

Im wanting to turn my zs into a track car for the summer down at knockhill, as the m8 has jst bought a 106 gti track car. but im not too sure on wat to do when iv stripped it out, its totally standerd apart from scorpian backbox, an mushroom air filter, iv got a budget of about 1k over the next month or so, amy info on wat i should do wud be much appriciated,