Best of all

Chrome plated knurled allen screws and washers mount rocker box on all 1999-up Twin Cam 88 Dyna and FLT and 2000-up Twin Cam 88B Softail

It will work on all Pro-One triple trees and many other aftermarket trees (installation on other trees may require some drilling)

and 1971-1972 FX

Big Sucker Stage 1 Air Filter Kit - Chrome - 1988-2020 Harley-Davidson XL DISCONTINUED Best of allThis is a super clean and simple high performance air cleaner, we have used these on several shop bikes including the new Saturday Sportster Tracker project! For full fitment please see the additional information tab below. One piece aluminum backing plate carb support bracket with patented hidden breather technology and radius air inlet Breather passages exit at the mouth of the carburetor throttle body, creating a virtually closed loop system Kit