[josedi]

Check your local muffler shop and just have them custom built you a bigger cat back exhaust, also universal K&N filter can fitted on this car with minor modifications but i know it can be done. This will give you ruffly about 10 to maybe 20HP, but the car will definitely feel faster because it will be able to breathe better and have more flow in the exhaust. Also some high end spark plugs and wires will help performance a bit, Advancing the timing a bit can also increase hp from 5-25HP depending on how much you advance it, but be sure to do it safely or with someone who knows. A new fuel filter, high or better grade fuel will also increase HP and make the engine run smoother. Good luck.