I would recommend the Volant CAI, the only thing is you will need a transition fitting b/c it's made for the zetec motor. You should be able to find one at any auto parts store. I have to do this untill I get the TB that I had order. Hope this helps.
BDR 60mm T/B, Volant intake, Focus Sport Stealth Exhaust, Screamin' Demon Coil Pack, Livewires, FC ORP, Konig 17x7 Sideways wrapped with Kumho ESCTA AST 205/40 17