Do you mean like a CAI? The tubing and brackets are all different because the CAI is made for a focus engine bay and the good (real expensive) one's are routed all the way into the fender for cold-air import style. So the answer would be nope. Unless you wanna cut up a new part, I'd go with a home brew system, and to make it nice plenty of company's sell tubing and silicone boots (summit racing for example) to make your own. Or check a junk yard, I always see totalled ricers sitting in the one's around here and I bet you could get one from it to hack up. Another way is in the tech section, I don't remember where but there's a how-to of a fellow making his own cold-air intake for his 4 cyl. Oh, and do you know for sure that the focus and ranger 2.3L are the same?? I used to wonder that when I had my new one.
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