tricks?????

does anyone have any tricks for an H22 honda prelude to make it faster? I'm on the way of getting DC headers, ceramic or steel???? what is a resanator????and why do people remove it??? i have cold air intake and 3.5 inch cat back exhaust. i am very interested in anyone who can tell me anything about the H22 engine or the 98 and up prelude so e-mail me if you can write anything about it... thanks type R...