QR Code Link to This Post Up for sale is this hardly used Arlen Ness Big Sucker Air Cleaner for 2017 thru 2018 Harley Davidson bikes with the Milwaukee 8 engine. It has the optional black Powder coated backing plate (which actually cost more). I may have used it 200-300 miles before another air cleaner I had preferred became available, and I changed it out.The all new Big Sucker™ for Milwaukee-Eight™ engines with new & improved design that's even better than before In addition to our patented hidden breather backing plate technology we have added an all new filter plate that is integrated for mounting studs and directional air venturi to force more air into the engine Our high performance filter is made from red surgical grade pre-oiled cotton for the best in airflow and filtration. Each filter is washable and re-usable; filter re-charge kits are available separately Ness air filter's surface area is over 200% larger than the factory filter for a massive increase in air flow to the engine. When compared to the performance options offered by the factory, the Ness air filter has 20% more surface area and 45% more pleat count to confirm its the best performance air cleaner on the market Designed to accept factory air cleaner covers and Ness custom covers Each Big Sucker™ Stage I kit for 17-up FLT models with Milwaukee-Eight™ engine includes one-piece backing plate, performance filter, filter top, and necessary hardware