Hey, just joined the forums here. I'm getting my 2004 focus 2.3 ZX3 at the end of the month.(ordered it two weeks ago) I've read alot of good things on the 2.3 on this site and can't wait to get it. I'm already thinking of an intake and pulleys. Does this engine really respond to these kinds of mods like I've read. Also, I've seen the throttle body too and the exhaust. Out of those four mods, what would be the best manufacture for each. I'm sure it's all a choice of preference though but just wondering. This will be my first new car, right now I have an '88 escort gt. So any of your thoughts will be appreciated.