The AirDog II-4G A6SPBF266 100 GPH Fuel System is the perfect solution for your 6.4 Powerstroke 2008-2010. This fuel pump mounts to the frame rail using the supplied sandwich plate mounting system, and completely bypasses the factory fuel pump. The suction side hooks up to the factory suction line on the frame rail, and the pressure side connects to the factory supply line on the frame rail. The AirDog Air/Vapor return is sent back to the tank through a return “Y” that splices the AirDog return into the factory engine return. This is a 100GPH (Gallon Per Hour) lift pump system for stock fuel trucks.