Arlen Ness Monster Sucker® Air Cleaner Kit — Beveled Chrome - 81-023 For Harley Motorcycles 1999-2017 Product Type_Gaskets & Seals Each seat contains the internal

Each seat contains the internal hardware to accept an optional matching driver's backrest

Requires removal of the stock seat

Capable of

'99-'09 FXSTB

Arlen Ness Monster Sucker® Air Cleaner Kit — Beveled Chrome - 81-023 For Harley Motorcycles 1999-2017 Product Type_Gaskets & Seals Each seat contains the internalFeatures 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