HOw to make my Sebring a Lil Faster

am not looking for turbo cuasei know its over 4000, i looking for stuff around 450-600buck or less to spend on car every month to make it go lil faster i mean if u gonna reply please know what u talking about dont tell me to get an intake or bullshit like that give me stuff that i see the difference peace.

denso irdium spark plugs, air hog air filter, uhhh, theres a number of things, whats the year and make ill get you part numbers so that you can go to ur autozone and pick some of it up

Its A chrysler Sebring 1996 2 door 2.5l v6 lxi