from what I've heard no, save your money and get an intake system. You can check out the arospeed intake system for the focus (i have it and I love it) or you can try the CTA intake. Mine was cheaper, I think on the site it comes with the filter and all for like 80 bucks.

95 Mystique GS Zetec ATX: Dead - Dec 5th, 2003 94 Accord LX 2.2L MTX Non-Vtec. Few bolt ons. 02 Escape XLT 3.0 V6 ATX. This thing has the CD4E in it?! What the hell was ford thinking?