K&N Engine Air Filter: High Performance, Powersport Air Filter: Fits 1976-1996 BMW (R100RT, R100GS, R100MYS, R100PD, R100R, R100RS, R65, R80, R80GS, R80R, R80RT, and other select models) BM-0300
Air Filter Box Spring Clip - BMW Airhead; 13 72 1 337 105 / EnDuraLast for Fitment Onto Filter Part # AF-080 or AF-080LX56