Cold air intake, performance chip, and possibly headers… these few items can increase horse power by 30-50, depending on a few things… but $400 should cover them. Also, use iridium spark plugs and performance wires if you have enough funds to cover it.
Pinstripes. If you want to save even more, use white electrical tape. Running it directly over the windshield is optional.
Next time dont buy the woman version of a Mustang, get a V8. And you own a 95 pos not a race car !
The cheapest way to make a V6 Mustang faster is to drive it off a cliff.
The second cheapest way (which is also the best way) is sell it and buy a V8.
Headers are the most power for the money.
They should be your first purchase.
Ignition modules: Distributor and Super coils would be the 2nd purchase
Try twin overhead foxtails, and a chrome dipstick. Or you could try painting it red. that worx.