This might seem like an obvious question but I'd like to clear it up before I screw it up !! If I use an FMU on my turbo install, will I still need to add an adjustable fuel pressure regulator on my fuel rail or will it be redundant ?? I've upgraded my injectors and added an inline fuel pump to the mix but I am not sure about the fuel rail regulator. Thanks for the info !!

 

As long as your idle fuel pressure is fine, there is no need for an adjustable fpr.