BIG SUCKER™ AIR FILTER KITS FOR TWIN CAM AND XL

One-piece aluminum backing plate features patented hidden breather technology
Each hidden breather 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
Backing plates are available in natural, black powdercoat, or chrome finish
Filters are available with standard red or synthetic black filter elements
Standard red filters are pre-oiled, washable and feature four layers of surgical grade cotton for optimum filtration and maximum airflow
Synthetic filters feature a black synthetic material that is water-resistant and never needs to be oiled; just wash and re-use
Stage I kit accepts OEM outer cover (unless noted) or custom Ness outer cover
Stage II kit features a 20% larger filter element and accepts an 8" round Ness outer cover only
All necessary hardware and instructions are included with each kit
NOTE: Exempt per CARB ref. E.O. # D-639-7, Exhibit A. for 01-19 EFI models only.