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K&N Air Filters Part #33-2367 Customer Reviews

Average Rating

23 Customer Reviews

K&N filter is simply the best upgrade to any auto

Reviewed by stephen K (HUNTSVILLE, AL) Reviewed for a 2007 BMW 3-Series — Aug 14, 2017 9:10 PM

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K&N filter is easy to install and lasts longer than your car. Wash, rinse, and oil once a year.

No difference in performance or noise

Reviewed by Joseph S (NORTH PALM BEACH, FL) Reviewed for a 2013 BMW Z4 — Dec 10, 2015 6:47 PM

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Installation was very easy, but can not say that I can tell any difference in either performance or noise with the K&N air filter versus a factory BMW air filter, so somewhat disappointed.

Great product

Reviewed by Keith M (Columbia, MD) Reviewed for a 2013 BMW X5 — Oct 16, 2015 3:42 PM

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Air Filters

Reviewed by Greg I (GRAND JUNCTION, CO) Reviewed for a 2015 BMW Z4 — Aug 06, 2015 3:22 PM

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The filters fit perfectly, shipment was fast and they appear to be a good value. I can't tell if they have improved my fuel economy or not but they will save money in the long run by not having to ever buy another air filter.

A small thing that makes a big difference

Reviewed by Bill W (CENTENNIAL, CO) Reviewed for a 2015 BMW Z4 — May 12, 2015 8:36 PM

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Looked for a custom intake for my z4. My only option was K&N. I had an installed Dinan state II, and the ECU continued to learn with the K&N increased airflow. Moms is faster, and really sounds great!

Savings Over Auto Supply Stores

Reviewed by David S (Phoenix, AZ) Reviewed for a 2007 BMW 3-Series — Jul 30, 2014 3:07 PM

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Looked around town and local auto supplies were charging 20-30% more. And free overnight delivery sealed the deal.

Much better than stock

Reviewed by John J (ENCINITAS, CA) Reviewed for a 2008 Nissan Pathfinder — May 20, 2014 11:15 PM

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Free breathing air filter adds slightly more power. Replace all my cars with K&N filters.

335i K & N Air Filter

Reviewed by Keith S (North Syracuse, NY) Reviewed for a 2009 BMW 3-Series — Apr 16, 2014 4:47 PM

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Best online price, free shipping and less than a 5 minute install. Clean and re-use this filter for the life of the vehicle along with a few extra HP...what's not to love.

Installed easily and was a perfect fit for my BMW 335i.

Reviewed by Joe G (Miami, FL) Reviewed for a 2010 BMW 3-Series — May 08, 2013 7:18 AM

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Installed easily and was a perfect fit for my BMW 335i

Easy install

Reviewed by Ryan M (New Orleans, LA) — Sep 06, 2011 9:09 PM

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Took me about 5 minutes to install it. Havent driven enough miles to notice a difference in milage or power.

K&N Air Filters - 33-2367

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