Aeromotive 14137 - 04-06 SUBARU 2.5L STI FUEL RAIL SYSTEM - Manual (Page 6)

31. Thread the o-ring side of one of the AN-08 cutoff tapered flare fitting into the top center
port and thread the AN-08 90-degree male ORB hose end in the front port of the
passenger side fuel rail.
32. Thread the o-ring side of two of the AN-08 cutoff tapered flare fittings into the top center
port and in the front port of the driver side fuel rail.
33. Connect the AN-08 45-degree hose end to the fuel pressure regulator. Plan a route for the
line between the fuel pressure regulator and the AN-08 90-degree male ORB Hose end
located in the front of the passenger side fuel rail, measure the length of fuel line needed.
See section titled Hose and Fitting Assembly for fuel line assembly instructions. Once the
hoses are assembled, ensure there is no debris in the hose and install it.