Not sure which 2010 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:
"I received the filter on time and I was able to install it with ease. On the 1st tank of gas I had 2MPG improvement. I continue to average 2 to 4 MPG better." —John I from Grasonville, MD bought a K&N Air Filters for a 2010 Ford Focus, 2.0L 4-cyl. engine.