ARLEN NESS Big Sucker* Stage I Air Filter Kit – Smooth – Chrome – 99-17 Twin Cam – 18-321 – 1010-0870

Big Sucker - Stage I Air Filter Kit - Smooth Cover - Chrome

Fitment - 2001 - 2017 Twin Cam w/ Delphi EFI

1999 - 2006 Twin Cam w/ CV Carb

*Will NOT FIT - 2008-2017 FLHT, FLHR, HD Trike, 2016-2017 Softail, 2016 - 2017 FXDLS Models*

The Arlen Ness Big Sucker Stage I Air Filter kit is made for performance. The Big Sucker directs unobstructed air straight down the throttle body. Each kit comes with hidden breather with O-rings at the heads and air exits into the carb or EFI to provide efficient engine breathing. This eliminates the need for any external hoses or hardware. Radius air inlet provides maximum performance by providing unobstructed airflow. Kit comes with a one-piece aluminum backing plate and all necessary hardware for installation.