Hign-concerned Chemical:NoneOrigin:Mainland ChinaFeature 1. Pipe body for the metal material design, rust is not easy to failure. 2. Upgrade version, aluminum alloy material, never rust. High quality, high performance. 3. Fan leaf professional angle design, can strengthen the gas flow rate. 4. Fan leaf body for the metal material to create shape, not easy to break and deformation. 5. Double-sided propeller allows the turbine to play a large output effect. 6. Brand new and high quality. 7. The dual propeller Of turbo fan intake fuel saver spins with the engine speed while generating a maximum force that creates powerful airflow into the combustion chamber at high speed. 8. The propeller sucks the airflow into the combustion chamber at a higher speed resulting atomized burning which increase horse power and saves gasoline. 9. Length: 75mm Inner Diameter: 60mm Outer Diameter: 65mm. Introduction 1. Remove air inlet hose located between air purifier. 2. Put the intake fan into the air inlet hose. 3. If the intake fan is smaller than the air inlet hose, use the rubber holder attached to increase its diameter so it can fit in the tube.