Replace your air-restricting stock backfire screen with our New PowerFlow kit. The kit includes a rigid, lightweight, billet aluminum cage, billet aluminum inner sealing ring and with a special backfire-resistant layer of foam laminated to the inside of the filter. The inner sealing ring moves the location of the filter mounting closer to the front of the airbox resulting in easier filter service. The sealing ring also helps eliminate filter tears due to filter installation/removal.