Arlen Ness Stage I Big Sucker Air Filter Kits for 1999-17 Harley Twin Cam - No Cover - 18-507 MPN_79-1101 Part Number: W4894

Part Number: W4894

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Arlen Ness Stage I Big Sucker Air Filter Kits for 1999-17 Harley Twin Cam - No Cover - 18-507 MPN_79-1101 Part Number: W4894Arlen Ness Stage I Big Sucker Air Filter Kit Engineered and proven to give your engine maximum airflow for more horsepower & torque The Big Sucker kits are designed to be used with the stock outer air filter cover or an Arlen Ness custom outer cover One piece aluminum backing plate features patented hidden breather technology Each hidden breather is O ringed at the heads and exits at the mouth of the injector carb to provide efficient engine