Full Function Engineering FD 13B-REW Twin Turbo Fuel Rail kit


Introducing the New FD OEM Twin Turbo Fuel Rail kit made by Full Function Engineering

These fuel rails are designed to work with the OEM Twin turbos and allow you to retain full OEM functionality while getting all the extra fuel.  Utilizing CNC 3D surfacing, a method not typically used for production applications due to the high time consumption, we designed the rails to have a mere 1.5mm (.060″) wall thickness while maintaining ample structural integrity. The result is a fuel rail that weighs a feather light 1.8oz for the primary and 2.5oz for the secondary.

No Stones Left Unturned.

We updated the mounting hardware to simplify installation and reduce weight further. The previous long M8 bolts are replaced by a spacer with an integrated M8 stud. The hollow spacer threads into the motor using a 12mm hex then reduces to an M6 for fastening the fuel rail.


  • CNC’ed 6061 T6 Aluminum
  • Black Type II Anodize
  • Stainless Hardware
  • 0.515″ Fuel Bore
  • -6 ORB Inlet/Outlet
  • 34mm Injectors required for Primary and secondary to work with the OEM Twin turbos
  • GFB Fuel reg optional and mounted to the fuel rail
  • Fittings kit optional to help plumb the rails

Additional information

Weight 1 kg