BMW e90 e91 (06-08) Brake Air Duct Front channel RIGHT Brake Air Duct RIGHT/Passenger side Front Air Channel for Brakes Brand NEW part with full 1 year warranty. BMW part# 51 74 7 121 570, note the mid-year splits. Genuine BMW part, recently made: not been lying around. PLEASE NOTE the mid-year split on PRODUCTION date. See Models Chart BELOW. Not sure about your car? email us your VIN to confirm.