2004 Chevy Aveo AKA superaveo

Hey guys this is my 2004 Chevy Aveo I got it in January 09.
So far the only "mods" I have done to it include satelite radio,de-badged it, window tint, A superman decal, and I painted a little part of the steering wheel a darker gray.
As of right now its nothing to special and hopefully soon I will put in my deck, amp, and alpine 10in sub.
But I am wondering if you guys can help my out, thinking for some cheap things to do with my superaveo.
I dont want it ricey at all. But thanks guys!

intake springs and nnnaaawwwzzzz

Buy a K&N air filter, they're amazing.

I can lend you in on a secret how to make your car sound like it has a V6 or V8 at absolutely no cost 100% free. PM me if you want to know.

haha thanks, I dont really want people to hear me from a mile away but i'll definitely keep it in mind thanks