Arlen Ness Big Sucker Stage 1 Performance Air Filter Kits for Harley Davidson XL Models '91-Up - Black DOES NOT INCLUDE COVER
- 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 powder coat, 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