Proflow's billet Remote electric water pumps deliver lots of flow; and, because they're electric, you don't have the horsepower loss at high rpm that's caused by a mechanical pump's impeller. These are lightweight billet aluminum construction Black Adodized in-Line Pumps reduces overall engine weight. These pumps feature CNC-machined aluminum housings, 3/4NPT thread and come with 2 billet Male 1-3/4" hose ends.