Not sure which 2010 Ford Focus Air Filters - Custom Fit is right for you? We have over 14143 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:
"installed on my 2010 focus SES, and i am seeing a gain of 1-2 mpg. i have always installed a K&N on most every vahicle i've owned and had great results, and this is no exception!" —Greg W from Greene, NY bought a K&N Air Filters for a 2010 Ford Focus, 2.0L 4-cyl. engine.
"when i open the box i new this was a good filter and matched the oem filter in very way. noticed little quicker acceleration. mpg were increased by 1.5" —Stuart W from Orlando, FL bought a K&N Air Filters for a 2010 Ford Focus, 2.0L 4-cyl. engine.