Pick up someone's SVT rims and exhaust...I got E1 rims with fresh KDWs and an SVT exhaust for $500. I also put in a K&N stock-type air filter, which was about $40. That small combination of parts made a pretty big difference. The car looks a lot better with the new rims and dual pipes, sounds great, corners really well considering I don't have any other suspension mods, and didn't break the bank, so I can more easily justify putting some more $$$ into other mods.