Description:Turbo fuel saver fan with single propeller Provides a more dynamic control over the intake system by forcing powerful airflow into the combustion chamber at a high speed Universal fit for air intake hose with diameter between 65mm and 74mm (2.5 - 2.9 inch) Horsepower enhancement and fuel saving capability Come with 2pcs rubber holders Maximum Speed Movement: 55，000R/Min Material: Aluminum alloy and rubber Size(L x Dia.): Approx. 2 x 2.5 inch / 5 x 6.4 cm Color: BluePackage Includes:1 x Turbo Saver Fan2 x Rubber Holder Keywords: Saver fan， fuel saver fan， turbo intake fan， turbo fan