•BCM EVO Breathers are fully machined from 303 Stainless Steel
•broached to internally use a ¼" hex key, 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