BEGi can convert your billet FMU to the new valve design. The new design allows adjustment for increased fuel pressure range, at the onset of that increase, thus providing stable pressure under the most demanding of conditions. The new regulator design has been tested to 450 psi, without failure or calibration changes. This will also eliminate the need for new valve shims.
The FMU must be sent to BEGi for machining and re-assembly. Allow a few days for completion. Changes to the FMU are internal and not visible from the exterior.