K&N Replacement Air Filter 4in ID x 5.25in OD x - RL-320B

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The K&N custom air cleaner below was designed to fit Harley-Davidson motorcycles. This K&N air cleaner is not street legal nor recommended by Harley-Davidson Motor Co., Inc. K&N custom air cleaners can increase horsepower with proper carburetor calibration. For stock K&N replacement filters that fit Harley-Davidson motorcycles, see our application search.

This K&N custom air cleaner was designed to fit Harley-Davidson motorcycles. This K&N air cleaner is not street legal nor recommended by Harley-Davidson Motor Co., Inc. .

K&N Replacement Air Filter 4in ID x 5.25in OD x 2in Height. Filtre à air de remplacement. Filtro de Aire de Reemplazo. Replacement Air Filter. Air Cleaner Assembly. Air Filter

Air filters are essential when it comes to your vehicles performance and protection. Shop from our list of air filters from brands like K&N, AEM, Injen, Spectre, Air Raid, aFe, and many more!

Replacing your OEM air filter with a drop in air filter is a great way to increase air flow without replacing your entire air intake system. Replacing your air filter is cheap, fast, and easy. Another benefit of replacing your OEM filter with a drop in filter is that your can wash your drop in filter. you will never have to replace your OEM filter again.

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.

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WARNING: Cancer & Reproductive Harm. For more information, go to www.P65Warnings.ca.gov

For over 50 years, K&N® has been an industry-leader in automotive filtration and technology—offering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide. HISTORY In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an air filter—one that could perform under the demands of dusty, dirty off-road environments. After experimenting with numerous types of filter media, they discovered that an oiled cotton design allowed the filter to not only capture contaminants very efficiently, but also allowed it to be washed and reused, and the original K&N® High-Flow Air Filter™ was born. Five decades later, K&N® is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe.