TWIN AIR PRE-OILED AIR FILTER (FR) & FLTR FRMES (2 PCS) HONWith the same treatment that the factory race teams and OEMs receive, the Twin Air Pre Oiled Air Filter is designed to catch all the dust and debris and allow efficient airflow, giving your machine better performance. Pre oiled with biodegradable foam filter oil that provides ultimate consistency in pore coverage. Easy and fast to change out the filter and get back on your bike for more great days of riding. Features: Pre oiled with Twin Air BIO Foam