Not sure which 2012 Ford Focus Air Filters are right for you? We have over 14810 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"On our 2012 Ford Focus I immediately noticed a nicer engine sound and what appears to be slightly better pickup. However for my 1998 Ford Ranger 4 cyl, I did not notice any performance improvement; that said, it passed the smog test with excellent numbers, which may or may not have been improved by this filter. My vehicles will always get an upgrade to K&N!" —Jose A from Victorville , CA bought a K&N Air Filters for a 2012 Ford Focus.