Replaces Harley Davidson OEM 
Brand: ARLEN NESS 18-505
Fits 2001 Twin Cam Models with Delphi EFI (Does Not Fit Magneti Marelli Fuel Injection)
Fits 1999-2006 Twin Cam Models with CV Carburetor
Big Sucke Air Filter Kit Accepts 8" Round Aftermarket Covers Only
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
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
Radius air inlet provides maximum performance by providing unobstructed airflow
One-piece aluminum backing plate features patented hidden breather technology
Stage I kit accepts OEM outer cover (unless noted) or custom Ness outer cover
All necessary hardware and instructions are included with each kit
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov