Not sure which 2009 Kia Optima 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 purchased a K & N air filter for my 2006 Ford diesel truck and was well please with the results after the installlation. I put this air filter on my new 2009 KIA Optima. I haven't ran a tank of gas in it yet but it seems to be doing what I expected." —Charles J from Pass Christian, MS bought a K&N Air Filters for a 2009 Kia Optima, 2.4L 4-cyl. engine.