^^^ FYI: 05-07 simply have a metal screen there, there is not a cabin air filter folder like the one shown in the picture above. That is what the part looks like that you'd have to find on a 00-04 Focus in a junkyard if you want to have a cabin air filter. Then you have to remove the metal screen and it's plastic frame, then put the cabin air filter holder in it's place.
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Moderating everything now, let me know if I can help.
Originally Posted by the user formerly known as ZX3_Chick
You're special aren't you.