hey guys im ready to start adding some HP to my ride. the only thing iv doen to it is gotten an AEM cai.....whats a not expensive thing i can purchase to make even a very minimal chnage in performance? i eventually wanan redo the entire engine, but i wanan do little steps right now as money is tight...eg. are headers a resonable price? im trying to stay under 1000 for right now. i want new headers and a borla exhaust but i also wanna turbo it in the future, or am i wasting my time getting little things liek cam gears and what not?