K&N Custom Assy Krk-3910-1

Special Order

K&N's RK Series was developed to get more horsepower from your Twin Cam®Harley-Davidson® engine. Built around the legendary K&N High-Flow AirFilter the this RK Series assembly includes an innovative powder coatedbillet aluminum backplate that eliminates external breathers and features abuilt-in dyno-tuned velocity stack. The result is a significant airflowincrease to the engine without sacrificing filtration. This RK Seriesassembly retains a factory appearance by utilizing the stock air cleanercover. The RK-3910-1 comes with a larger air filter and longer spacers thanthe RK-3909-1.

Designed to increase horsepower &torque
Dyno-tuned velocity stack
Washable and reusable
Excellentair filtration

In the early 1960s two motorcycle racers Ken Johnson and Norm McDonald(K&N) developed a ground-breaking new idea for an air filter. Afterexperimenting with numerous types of filter media they discovered that anoiled cotton design allowed the filter to not only capture contaminantsvery efficiently but also allowed it to be washed and reused and theoriginal K&N High-Flow Air Filter was born. Five decades later K&Nis still innovating industry-leading filtration technology. In addition toperformance air filters K&N® now manufactures a variety of otherprotection and performance products including air intake systems oilfilters & fuel filters with a reputation for exceptional quality andcustomer service.

K&N's RK Series was developed to get morehorsepower from your Twin Cam Harley-Davidson engine. Built around thelegendary K&N High-Flow Air Filter the this RK Series assemblyincludes an innovative powder-coated billet aluminium backplate thateliminates external breathers and features a built-in dyno-tuned velocitystack. The result is a significant airflow increase to the engine withoutsacrificing filtration. This RK Series assembly retains a factoryappearance by utilizing the stock air cleanercover.

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Special Order items may take 1-3 business days to arrive in store

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