Arlen Ness Big Sucker Stage 1 Air Filter Kit w/Steel Cover

Big Sucker air cleaners have been the best selling and most efficient air cleaner on the market period. 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 the up to a 21 percent gain in horsepower from simply adding a Big Sucker kit to your V-twin engine.

Patented hidden breather backing plate

• One-piece aluminum backing plate features patented hidden breather that is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware
• Radius air inlet provides maximum performance by providing unobstructed airflow

Hand made filter element

• Handmade in the USA using the finest materials available
• Filters are pre-oiled and feature 4-layers of surgical grade cotton for optimum filtration and maximum airflow
• 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

• Each kit includes a backing plate, filter, breather bolts, outer cover and all other necessary hardware