Arlen Ness Stage 1 Big Sucker Black Air Cleaner Filter Kit 09+ Harley Sportster

Fits 2009 and up Sportsters With Round Covers

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

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 C.A.R.B. ref. E.O. # D-639-5, Exhibit A. (unless noted).