Arlen Ness Black Monster Air Cleaner Intake Breather Stage 1 Harley 2017-2021 M8

  BRAND NEW PART NUMBER - 81-039 Fitment: 2017 - 2020 Harley Milwaukee 8 models Our Monster Sucker 90° air cleaner kit features a massive forward facing filter design and our patented hidden breather backing plate for maximum performance gains Our patented hidden breather technology are o-ringed at the heads and exist out the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware The Monster Sucker filter has more filter surface area then any other 90° kit on the market and features an inverted filter top to pull in air from every direction Each filter is constructed from synthetic material that is water resistant, which in most cases eliminates the need for a rain sock. Filters are washable and do not require oil, just wash and re-use Kits Milwaukee-Eight™ (M8) engine applications include a throttle servo cover for a clean look Monster Sucker kits are available with or without forged billet covers Styled covers CN