ITEM NAME:Universal Tornado Turbo Single Fan Air Intake Fuel Saver Fan Turbonator JfJ Kw.Includes 1x Single propeller turbo air intake saver fan, 2x Non-slip rubber holder. Increase horsepower and better on gas/fuel mill age. 1 x Turbo fan intake. Notice: it's Single Fan,not double Fan. 1 x Non-slip holder ( rubber adjuster ).