Originally Posted by G-CIV
so should i buy some haeders? i mean is the difference that i will notice be worth the $250 that i would spend on some header?!
You need to spend quite a bit more time researching this site, because you've asked alot of general questions so far.
You will spend alot of money on bolt ons for that engine, and maybe gain 10hp. It's not a good $/hp benefit; and you probably won't notice any difference on the street.
You should make a plan of ultimately where you want to go. If you really want to make some power, you'll either need to build or go FI, that's where these extra parts start giving some gains by optimizing your system.
I'd wait a while, figure out what you really want to do with the car, then start researching what parts will work best for your needs and application. But if you really just want to mod your car to mod or whatever, then go ahead, but you may realise later that you wasted the money and have to buy the parts all over again.