Yeah, I'd skip the stereo and wheels stuff. Put in a CAI. They're only around $150-250. Then save up another $300 and do cams for increased toque. And if you wanna go all-motor versus forced induction, go for headers.
But please, PLEASE do not rice it up! (Haha, Uncle Ben's slogan)
If you want cost effective aesthetics, lower the car (do it the cheap way, cut the springs until you can afford some nice coilovers).
__________________
|