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2009 Ford Flex Air Filters - Custom Fit

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Latest Customer Reviews

K&N Air Filters Reviews


First things first

Reviewed By Steven G (Naples, FL) Reviewed for a 2009 Ford Flex —3/21/2014 3:21 AM

Just purchased a new Fusion Ecoboost. First order of business is always to order the K&N air filter. Auto Anything has excellent pricing and free shipping. Product quality and performance with AA's service keeps me coming back.

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AEM DryFlow Air Filters Reviews


More pick-up....less MPGs

Reviewed By Charles D (Bowie, MD) Reviewed for a 2014 Ford Flex —5/26/2014 8:37 PM

I put this in a brand new 2014 ford flex after I drove it about 2,000 miles to get a baseline mpg. As soon as I installed the AEM filter I noticed a slightly different throttle note. Not much. My MPGs dropped from 16.8 to 13.4 - same exact driving route. Acceleration is slightly quicker, in my head? Maybe. Without a dyno who knows. I took a long trip got 18 mpg, well under the flexs rated 24 mpg. Only have 3400 will keep it in and see what happens. Any suggestions?

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Green Air Filters Reviews


great buy!

Reviewed By Nathan W (Cleves, OH) Reviewed for a 2012 Ford Focus —5/25/2017 6:23 AM

Recently purchased a 12 Focus SE to keep miles off my RS. Wanted a good air filter mainly to help maximize fuel economy but any performance gain is certainly welcome too. Super easy install, left the factory box lid ON as it really forms a very nice and effective 'cold air' intake. The open end produces a nice and appropriately (minor and subtle) throaty noise under load. Great buy, definitely pick one up!

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