ITEM NAME:Car Turbo Charger Air Intake Gas Fuel Saver Car Refitting Fan Vent(Black) #gib Store Home Promotion Hot Item Add to Fav.Suitable for both petrol and diesel cars. Position: Between throttle valve and air filter, into the air tube. Brings better working efficiency to car fuel. Up to 5%-15% fuel saving efficiency. Can be placed in the middle of the air tube if it is curved.