FUELAB® Electronic Fuel Pressure Regulator works directly with our Prodigy line of fuel pumps to reduce heat build up and vapor lock conditions related to street/strip operation. Set the pressure mechanically like a traditional bypass regulator, the let the electronic regulator's demand based speed control take care of the rest! The FUELAB® electronic fuel pressure regulator generates a signal to the Prodigy pump, to control the return line flow rate. This feature reduces current draw while at low engine output, to prevent fuel overheatng the leads to system failure. With the new FUELAB® demand based system, true pump control is finally achieveable and easy to install!