I was wandering if anyone knows of any cheap mods(peformance or looks) for my 03 cav

If yer not looking to spend any cash at all, then shaving your side moldings and badges is free (well unless you count a few supplies).

Cheap mods include painting interior (not for the novice) maybe a 3rd brake light decal, etc.

the basic mods for cheap is exhaust, intake, ignition and coil, sparkplugs, spark plug wires and if you want to spend alot go wtih turbo.

for looks you should get a body kit ,spoiler, carban fiber hood rims and for show maybe some windo stickers and decals

03 Cavaliers don't have spark plug wires...

Dont worry about cheap mods. If you want to make your car look good, then doing things cheaply isnt going to get you a nice looking car.

Also exhuast isnt cheap, unless you get a 20 dollar muffler from ebay (these are a waste of money) and these are going to do nothing for performance. if you want to do exhuast right then your looking at spending upwards of $200, same with intakes you dont want to buy a cheap one from ebay, i would go with an AEM intake or even one from www.induction-dynamics.com