The Twin Air PowerFlow Air Filter is a great way to boost the horsepower and performance of your motorcycle.Twin Air designed their PowerFlow Air Filter to be used exclusively with the Twin Air PowerFlow Kit. The special backfire-resistant layer of foam laminated to the inside of the filter makes the Twin Air PowerFlow filter a quick, ready-to-install assembly.The same factory treatment that race teams and O.E.M.'s receive is now available for all Twin Air users.Comes in a new, re-sealable bag for added convenience.Filter ONLY for use with Twin Air PowerFlow kits.Note: Image is for representation, actual product may very depending on application.