Product Description "The Boyesen SuperCooler water pump kit is an aluminium investment cast water pump cover and impeller combo; specifically designed to enhance the performance of your engine’s cooling system. This high flow, hydrodynamic water pump kit has been tested and designed to flow more coolant. By increasing the flow, the engine will run cooler at a more constant temperature. •Investment cast aluminium construction •Increase coolant flow at all RPM ranges •Patented nautilus style impeller for hydrodynamic efficiency •Extends engine life"