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Ford Flex Air Filters - Custom Fit

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Latest Customer Reviews

K&N Air Filters Reviews


Should Have Done It Sooner

Reviewed By Grady L (MAYVILLE, WI) Reviewed for a 2012 Ford Flex —6/9/2017 8:39 PM

Noticed instant improvement in performance and acceleration. Like going from blocked sinuses to breathing freely. Wish I had done this sooner - from now on, all my vehicles will be using K&N air filters!

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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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aFe Pro-Dry S Air Filters Reviews


aFe does it again!

Reviewed By Dylan J C (Phoenix, AZ) Reviewed for a 2016 Ford Mustang —7/20/2017 6:55 AM

This is the third aFe filter I have purchased for my vehicles. All have performed exactly as expected. Super easy to install. I check it every oil change which they usually don't need to be cleaned but once or twice a year. Run it through water and clean with something like simplegreen, then let dry. Couldn't ask for it to be any easier.

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