Edelbrock High Performance Water Pumps are built from the ground up. Edelbrock High Performance Water Pumps are designed in house and so are the castings and the machining. No import stuff here. Edelbrock High Performance Water Pumps can reduce water temperature by as much as 30 degrees. Edelbrock High Performance Water Pumps eliminate cavitation to produce a pure stream of water from the impellers. Edelbrock High Performance Water Pumps are tested to flow equally to both heads avoiding overheated heads and lean running. Edelbrock High Performance Water Pumps are made in California.