•BCM EVO Breathers are fully machined from 303 Stainless Steel
•broached to internally use a ¼" hex key and to top it off the we thought a machined stainless washer made in the identical diameter is the cleanest way to go.
•Bolt them up, install the stainless mesh, Uni foam, circlip and your good to go.
•We strongly suggest applying a dot of blue thread lock on all threads during installation.
Fits 1991-UP Sportster & Big Twin Evo's
Sold in pairs
Made in USA