ModifyStreet Air Intake Dual Fan Propeller Gas Fuel Saver Turbo Supercharger Turbonator Blue 100% Brand New, never been used nor installed Material: Made of Light Weight Aluminum, Color: Blue Dimensions: 75mm / 2.9" (Length) x 64mm / 2.5" (Diameter). A quick measurement is highly recommended to ensure best fitment due to possible air intake internal size discrepancies between countries. Provides more dynamic control over the intake system by forcing powerful airflow into the combustion chamber at high speed Dual Fan Propeller Maximum Speed Movement: 55,000R, Enhance up to 10% on horsepower and with better economy mileage per gallon of fuel up to 30%