Fuelab digital fuel pumps, fuel pressure regulators and accessories - for the best fuel supply Digital Fuel Pressure Regulator-8AN Fuel pressure regulator for electronic fuel pump FueLab - Fuel supply at the highest level Intake: -8AN - 1,7 -? 6bar - digital Only adjust the pressure - The rest is controlled by the fuel pressure regulator. Digital Fuel pressure regulator measure the reflux and regulate the flow rate of the fuel pump according to this value. In addition to optimal fuel quantity, the unnecessary heating of gasoline is reduced, thus leading to better performance.