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1991 Ford F-150 K&N Air Intake Systems

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Latest Customer Reviews

K&N 57 Series FIPK Air Intake (50-State Legal) Reviews


Completely Worth it!

Reviewed By Joey J (Arvada, CO) Reviewed for a 1991 Ford F-150 —12/16/2012 1:26 PM

This cold air is awesome! Install was a little difficult by myself, but i managed. I can definitely feel the added horsepower and torque, and it really opens up the engine so it can breathe more. you can hear the difference too. Definitely worth the money.

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K&N Cold Air Intake Replacement Filters Reviews


Love my K&N!!

Reviewed By Kris K (Pine Bluff, AR) Reviewed for a 2002 Ford F-150 —1/13/2015 7:48 AM

I recently replaced my K&N filter that I bought 11 years ago. I know the advertisement says it can go a million miles, but I figured that after 11 years I got my money's worth out of it and just decided to change it anyway. The filter still worked great, but after multiple cleanings and washings over the years, the read cotton turned grey and I just wanted a fresh look. Now the clock has reset. See ya in about 10 years!!!

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K&N Filter Recharger Kit (Aerosol Can) Reviews


K&N Filter Recharge Kit

Reviewed By Tim K (Baton Rouge, LA) Reviewed for a 2005 Ford F-150 —1/24/2011 5:09 AM

While a bit pricy, this kit is excellent. My new filter had darkened over the year I've had it. Typically on the road driving. The product very effectivly cleaned the filter and once treated with the oil, it looks like a brand new purple filter.

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