With smooth chrome billet cover. The exposed air filter element gives it good looks and excellent breathing capabilities. - This air cleaner assembly comes with Ness'' synthetic; stainless steel jacketed filter element equipped with synthetic filter media. This high performance filter is water-resistant and does not require filter oil. To service; just clean; rinse and re-install. - Replacement air filter elements 959594 (black synthetic filter; requires no oil) / 959598 (4-layer cotton gauge pre-oiled) - Optional rain sock 595629

- Black anodized one-piece billet aluminum backing plate - Scalloped black anodized billet outer cover - Not compatible with OEM outer air cleaner covers - Stage II Big Suckers feature a 20% larger filtration area than the Stage I kits - Comes with a high performance synthetic filter with a zinc plated housing - Filter requires no oil; just clean; rinse and re-install when servicing - Increases horsepower & torque - Built-in patented breathing system features hidden channels to prevent the use of unsightly exposed breather hoses and fittings - Radius air inlet for unobstructed airflow.

- Plain backing plate - For use with the OEM oval air cleaner cover - Stage 1 red pre-oiled filter element. With added urethane for best support of the factory cover. The best and simplest performance air cleaner kit for your bike... period. Gain up to 21% horsepower by simply installing a Big SuckerT kit on your intake. Backing plates: The Big Sucker aluminum backing plates feature a radiused inlet to optimize airflow for both carburetor and fuel injection applications. The built-in breathing system features hidden channels to prevent the use of unsightly exposed breather hoses and fittings. Note: See 958901 for the replacement air filter element