The aFe DFS780 Diesel Fuel System is a state of the art fuel filtration and air water separation system. All components of the aFe DFS780 Diesel Fuel System were designed to improve quality of fuel flow. Everything from the CNC machined fuel flow paths to the helical spur gears helps improve performance and provide proper fuel flow. Your diesel fuel is passed through a high efficiency aFe fuel filter to remove contaminants. Fuel is then passed through an air fuel separator and air bubble free fuel is sent through the system. The aFe DFS780 Diesel Fuel System not only delivers more performance but cleaner, more reliable fuel. For uncompromising diesel performance choose the aFe DFS780 Fuel Filtration System. | aFe DFS780 Pro Diesel Fuel System 42-22011