goto a performance shop and hand him around 30K, and say ... hook me up wid Level 1 Mods! Then see what happens...as for the parts a few pros here will fill you in...as far as i know :
Headers,Air Intake,Performance Plugs with wires,Free-Flow Exhaust with piping and all. Add in a nice Rims and Tyres combo and body kit OR a few exterior mods if needed!
Voila you are a Level 1 Racer...just don't "rice" it !!!!