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Now available for Milwaukee-Eight engines, the Big Sucker has been one of the best-selling and most efficient air cleaners on the market for well over a decade. The Big Sucker is engineered to give your engine maximum airflow, which means more horsepower, more torque, and overall improved performance. Dyno testing has shown significant horsepower increases can be achieved by simply adding a Big Sucker to your V-twin engine.

Rollies Speed Shop carries a huge range of Big Sucker air cleaners and accessories including full assemblies, assorted covers and face-plates, and replacement air filter elements. Fits most Harley-Davidson models.


  • One-piece aluminium backing plate features Arlen Ness’ patented hidden breather technology. Each hidden breather is o-ringed at the heads and exits at the mouth of the injector/crab to provide efficient engine breathing, eliminating the need for any external hoses or hardware
  • Radius air inlet provides maximum performance by providing unobstructed airflow
  • Backing plates are available in Standard, Black Powder Coat, or Chrome finish


  • Each filter is handmade in the U.S.A. one at a time using the finest materials available
  • Filters are available in red or synthetic jacketed filter elements
  • Standard red filters are pre-oiled, washable and feature 4-layers of surgical grade cotton for optimum filtration and maximum airflow
  • Synthetic steel jacketed filters feature a synthetic material that is water resistant and never needs to be oiled. Just wash and re-use
  • Arlen Ness’ process of hand pouring each filter ensures a strong clean bond between filter element and body with no restrictive urethane residue on the filter element


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