intake: anywhere from 75-200 depending on which on you get
header: 200-500+ depending on the type you get. dc sports makes good headers for 270 new (ceramic) or 350 i think for the s.s.
exhaust: 200-700+ axlebacks are cheap but wont yield you as much hp because they aren't really helping flow much better because you still have the smaller piping. you can get a tanabe rm (what i have) for 550 shipped. that is a hella nice exhaust
