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 Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum backplate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover.
- Guaranteed increase in horsepower and torque.
- Replaces the stock air filter and cleaner backing plate assembly.
- Fits behind the O.E. air cleaner cover maintaining the factory appearance.
- Washable, oversized K&N high-flow air filter equals longer life.
- Oversized black, powder coated aluminum backing plate provides solid mounting.
- Dyno tuned velocity stack directs airflow to engine.
- Built-in breathers replace external O.E. breathers (where applicable).
- Washable and reusable.
- Excellent air filtration.
- Includes K&N Million Mile Limited Warranty.
