MCS-599427 - All black anodized finish. It greatly helps; when trying to maximize airflow through a filter; to have a large filtering area. But building a huge filter was a no go; it had to be small and very effective. This is where the Arlen Ness design artists start

Fitment:
16-17 Softail; 2017 FXDLS; 08-16 Touring; Trike. (e-throttle) (NU)