K&N CUSTOM ASSY KRK-3930 KNRK3930
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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.
Washable and reusable
Fits inside stock cover
Provides increased air flow
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