easy mods

im lookin to do some mods for my 94 z but its got 120 thousand miles so i dont want to do anything to extravagant because the engine is gonna go soon. im gettin an intake and borla cat back exhaust soon - when i get enough money- and im gettin a set of 17" tire and wheel five spoke silver but i just want some semi cheap and easy things to do any suggestions that dont have anythin to do with takin the engine out.