K&N Custom Air Cleaner Assembly - RK-3930
The K&N RK-3930 Air Intake System was designed to get more horsepower from your Twin Cam® Harley-Davidson® engine. Built around the legendary K&N High-Flow Air Filter, this RK Series assembly includes an innovative powder coated billet aluminum back plate 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.
- Increases horsepower
- Washable and reusable
- Fits inside stock cover
- Provides increased air flow