K&N RK-3909-1 Air Filter Assembly for Harley-Davidson

K&N RK-3909-1 air filter assembly features a billet aluminum back plate and high-flow air filter for increased airflow and filtration.

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$314.99

Out of stock
SKU RK-3909-1
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Description

The K&N RK-3909-1 Air Filter Assembly is a premium product designed to enhance the airflow capabilities of your engine. Built around the renowned K&N High-Flow Air Filter, this assembly includes a powder-coated billet aluminum back plate that eliminates external breathers while incorporating a built-in, dyno-tuned velocity stack. This innovative design allows for a significant increase in airflow without compromising filtration.

With the K&N RK-3909-1, you can maintain a factory appearance by utilizing the stock air cleaner cover. This assembly is specifically crafted to optimize the performance of your engine, making it an excellent choice for those looking to improve their vehicle’s air intake system. The RK Series is known for its effective airflow management, which can lead to noticeable performance benefits.

Features

  • Innovative powder-coated billet aluminum back plate
  • Built-in, dyno-tuned velocity stack
  • Retains factory appearance with stock air cleaner cover
  • Includes K&N High-Flow Air Filter
  • Significant airflow increase without sacrificing filtration

Frequently Asked Questions

What is included with the K&N RK-3909-1?

This assembly includes a powder-coated billet aluminum back plate and a K&N High-Flow Air Filter.

Does the RK-3909-1 maintain a factory look?

Yes, it utilizes the stock air cleaner cover to retain a factory appearance.

What is the benefit of the built-in velocity stack?

The built-in, dyno-tuned velocity stack allows for a significant increase in airflow to the engine.

Manuals & Instructions

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