NEED ADVICE FOR MY 95 GT!!!

[Nick95GT]

i have a yellow 95 Stang GT 5 speed, and pretty much everything is stock. i already know that im goin to be puttin some off road x-pipes on it this summer comin up, so i can increase the horses and make it sound sweet, but i need some advice for anything else i can do to it thats not that expensive to increase the hp. i was thinkin about cold air intake but i heard thats pointless if im just puttin it on a stock engine. im not in the market to spend a lot of money, i just want to see if i can make it any faster, and get some more hp out of it