For use with returnless fuel systems only.
The new Aeromotive Billet Digital FMU is a fully adjustable, scalable, electronic fuel pump controller. Used with an external in-line fuel pump, the Digital FMU creates a programmable FMU for use with returnless fuel systems. The Aeromotive FMU senses manifold pressure and automatically controls the external pump, providing the fuel pressure that you dial in. Now you can add forced induction to any returnless fuel system application and maintain the proper air/fuel ratio under all WOT operating conditions.