my mates got a std RST and turned it into track car, on a budget, but i'm sure he's spent alot more than he was going too.
He's fitted,
wilwood Brakes, but 4wd set up is cheaper and will be fine.
Coilovers,
Alloy rad,
Alloy FMIC,
bucket seat, harness, and cage,
15" alloys with toyo 888's fitted,
Zorst, A/f,
good Std engine and turbo,
Chip, and boost to 15psi.