The PureFlow AirDog II-5G DF-165-5G fuel system is engineered for 2003-2007 Ford 6.0L Powerstroke engines, providing 165GPH (Gallon Per Hour) for moderately modified trucks. This system replaces the factory frame rail fuel pump and mounts to the frame rail with the supplied sandwich plate mounting system. The suction side connects to the factory suction line on the frame rail, and the pressure side feeds into the factory injection pump feed line. The AirDog Air/Vapor return is sent back to the tank via a return “Y” that ties into the factory engine return. Improve fuel flow and performance in your Ford 6.0L Powerstroke with this kit—check the installation manual for a full list of included parts.