Features:- This fuel saver turbonator fan provides a more dynamic control over the intake system by forcing powerful airflow into the combustion chamber at a high speed.- Once the engine is started, the propellers spin to create a maximum turbulence in the incoming airstream to allow enhanced fuel atomization in the combustion chamber, resulting in significant increase in horsepower and better gas / fuel millage.- With simple installation steps, you can enjoy going faster and furtherer whilst saving gasoline all at the same time.Type: Car TurboMaterial: Alloy Aluminum + SiliconeFit for: Vehicles with Intake Supercharger of Size 64mm to 73mm/2.52" - 2.87" (Approx.)Maximum Speed Movement: 55,000R/MinDiameter: 65mm/2.56" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Car Turbo2 x Rubber Covers