Arlen Ness Black 10 Gauge Monster Sucker Air Filer Kit 1988-22 Harley Sportster 4 mm (1") For Handlebar

4 mm (1") For Handlebar Diameter Imperial 1" For Handlebar Diameter Metric 25

Kit includes axle

pressure relief valve allows constant oil flow through remote oil cooler with total protection from starving engine from oil flow

Made from 7075 billet aluminum

Arlen Ness Black 10 Gauge Monster Sucker Air Filer Kit 1988-22 Harley Sportster 4 mm (1") For HandlebarMonster Sucker Air Cleaner Kit with Cover 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 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