K & N ® 33-2488 - 33 Series Unique Red Air Filter
K & N ® 33-2488 - 33 Series Unique Red Air Filter
K & N ® 33-2488 - 33 Series Unique Red Air Filter


K & N ® (11-22) BMW M Series 33 Series Unique Red Air Filter

Regular price$149.99
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    2018 - 2021 BMW M2 Competition Coupe

    2014 - 2019 BMW M3

    2014 - 2020 BMW M4

    2011 - 2023 BMW M5

    2013 - 2019 BMW M6



    CARB (All 50 States)




    1. Durable Urethane Panel Construction - Made to last the life of your vehicle.
    2. Pleated High Flow Filter Media - Improves performance by allowing more air into your engine.
    3. Epoxy Coated Aluminum Mesh - Helps protect filter media.
    4. Pre-Oiled Cotton Gauze - Ready to install out of the box.
    5. Designed for Optimal Seal - Prevents unfiltered air from passing through.

    Filtration & Engine Protection

    K&N automotive filters offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N high flow filter media has been tested in our own in-house laboratories and by independent labs using the ISO5011 air filtration standard developed by the Society of Automotive Engineers. Our goal at K&N is to design reusable filters with the most possible airflow while providing guaranteed engine protection.

    Fuel Economy

    Fuel economy testing and mileage claims are not as cut and dry as they may seem. The EPA's website states, "EPA's fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from the EPA's fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning." Many exaggerated claims are found in the marketplace by automotive product manufacturers claiming to improve vehicle gas mileage. K&N does not make any general fuel economy claims. We simply encourage you to try our washable filter products for yourself.

    K&N Air Filter Oil

    A K&N reusable filter is designed with four to six layers of cotton gauze media sandwiched between two aluminum wire screens. The cotton media is then treated with a specially formulated grade of filter oil that causes tackiness throughout the cotton's microscopic strands. The cotton in a K&N replacement air filter allows high volumes of airflow, and when combined with the tackiness of the filter oil creates an efficient filtering media that ensures engine protection.

    K&N Consumer Protection

    The K&N Consumer Protection Plan goes a step further than the K&N Million Mile Limited Warranty. At times, the performance aftermarket has been plagued by automotive manufacturers and auto dealers that may attempt to discourage you from modifying your vehicle. They would prefer that you buy OE parts and not customize your car or truck and have even voided their own manufacturer's warranty due to vehicle modifications. K&N and the Magnuson-Moss Warranty Act protect consumers from such denied warranty claims. When you buy a K&N OE replacement filter or air intake system you can be confident your vehicle's warranty will remain in effect. If you encounter a dealership that wants to void your warranty because of one of our products, K&N will resolve the issue so you won't have to. We believe K&N makes The World's Best Air Filter and we stand behind that claim 100 percent.

    Consumer Protection Pledge

    K&N pledges to our customers that they will not be taken advantage of and charged for a repair due to a dealership warranty denial blamed on the presence of a K&N product.



    Air Filter Shape Trapezoidal
    Filter Material Cotton Gauze
    Flanges None
    Height 1.188 in (30 mm)
    Package Contents 2 Air Filters
    Package Quantity 2
    Washable Yes
    Product Style Unique Air Filters
    Width 8.375 in (213 mm)
    Length 9.313 in (237 mm)
    Weight 2.2 lb (1 kg)
    Product Box Height 15.31 in (389 mm)
    Product Box Length 11.13 in (283 mm)
    Product Box Width 3.56 in (91 mm)