Arlen Ness Monster Sucker Deep Cut Air Cleaner - 81-004 For Harley Motorcycles 1999-2017 Road King Requires accessory adapter part #

Requires accessory adapter part # 2120-1344 (sold separately) for plug and play installation

Rollers eliminate thrusting on valves for decreased wear on the valve train

Increases fuel and air flow for added performance

Premium Plug & Play LED front turn signals

Arlen Ness Monster Sucker Deep Cut Air Cleaner - 81-004 For Harley Motorcycles 1999-2017 Road King Requires accessory adapter part #Features Features Big Sucker hidden breather technology and more filter surface area for maximum performance Hidden breathers are O ringed at the heads and exit out the mouth of the throttle body to provide efficient engine breathing, eliminating the need for any external hoses or hardware Filter features a built in inverted top to pull in air not only from all sides of the filter but also from the front, which results in more performance gaining