BMW 525 528 530 96-00-05-07-09-11-12-13 Turbo Cold Air Intake Dual Fan Gas Fuel Saver Universal fit for all vehicles with intake hose size 2.50"~2.91"(64mm-74mm). Applicable to any vehicle with a Petrol or Diesel engine Install in your intake and start saving fuel and gaining performance immediately. Diameter 64mm/2.50". Length 7.5cm/ 3" One Turbo Air Intake Fuel Saver Fan (Dual Propeller) and Three Non-Slip Rubber Holder (Exactly Shown In The Photo) 100% Brand New. Easy installation. Look at pictures