Arlen Ness Monster Sucker Breather Air Cleaner Kit - 81-039 For Harley Motorcycles 2017-2025 Brand_Pingel Does NOT contain a catalyst

Does NOT contain a catalyst and is not legal for road use

Requires the removal of tappet blocks for installation

Fits 2018-2020 Harley-Davidson Sport Glide (FLSB)

Includes removable backpack straps and carrying handle for transportation ease

Fits perfectly with both Lowrider ST bags & Exhaust systems mounting brackets

Arlen Ness Monster Sucker Breather Air Cleaner Kit - 81-039 For Harley Motorcycles 2017-2025 Brand_Pingel Does NOT contain a catalystFeatures Monster Sucker kit features our patented 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 injector carb 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