Arlen Ness Big Sucker Stage I Air Cleaner Kits - 18-503

For well over a decade the Big Sucker has 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 our 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 stainless steel jacketed filter elements
• Standard red filters are pre-oiled, washable and feature 4-layers of surgical grade cotton for optimum filtration and maximum airflow
• Stainless steel jacketed filters feature a synthetic material that is water resistant and never needs to be oiled. Just wash and re-use
• Unlike most other filters, our 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

BIG SUCKER STAGES:

• Big Sucker Air Cleaner kits are available in 3 stages: Stage 1, Stage 2, and Derby Sucker
• Stage 1 kits give the option to use either your OEM air cleaner cover or to install an Arlen Ness custom cover
• Stage 2 kits feature a 20% larger filter element over Stage 1 for even more airflow and require the use of a custom outer cover
• Derby Sucker kits feature a 20% larger filter element over Stage 1 and allow the use of any 5-hole derby cover