I Need to know performance parts quick~!!!!!

Hey guys, I own a 1996 Mustang SVT Cobra, runs about a 5.8 0-60 it's all stock, I was wondering what performance parts I could add on to make the car faster, I don't know much about cars so I need some auto parts for not too much money to upgrade the performance.. Thanks

4.10 gears will give your car a whole new attitude. i am still awaiting funds for my gears.

gears
off road x-pipe but u might want to get cats so its legal
a cat back of some sort thats the mufflers and tips that attach to the x pipe
mybe some headers all of those are consided cheaper mods i mean yeah headers can get up to 600 dollers or they can be 200 just depends on the length (shorty, mid, long tube) long tube more power but more money and a pain to get in.