Machined from 6061 aluminum these air cleaners measure 5.5” in diameter and 1.5” thick. To filter the air they use a high flow Uni Filter foam filter element. The cover attaches to the backing plate with a 1/4 turn lock mechanism (pat pending) that is machined into both backing plate and cover. A custom stainless steel spring provides the needed force to keep the cover locked in place and doubles as the outer cage for the filter. The only required hardware is the 3 screws to attach the backing plate to your carburetor.
Currently these are available for HD CV and S&S Super E/G carburetors. When you buy an air cleaner for a CV carburetor it will come with the S&S bolt pattern spot drilled on the inside and vice versa. I did this in case you decide to change your carb down the road or put the air cleaner on a different bike.