Adjustable Fuel Pressure Regulator

The AEM Adjustable Fuel Pressure Regulator, model 25-301BK, is constructed from CNC-machined 6061-T6 billet aluminum and is capable of supporting engines up to 1000 horsepower. Its patented interchangeable discharge ports allow for precise matching to the output of virtually any fuel pump, with a single large discharge orifice included. The regulator offers adjustable fuel pressure ranging from 20 psi up to the maximum capacity of the fuel pump, and features a 1:1 boost-dependent rising fuel pressure rate. The base of the regulator is tapped to accept either -6 AN or 9/16"x18 fittings, and it includes a custom barb fitting to accommodate the factory fuel hose. This regulator can mount directly to a stock fuel rail or an AEM High Volume Fuel Rail. This adjustable fuel pressure regulator is compatible with a range of Acura and Honda vehicles, including the 2000-2005 S2000, 1996-1997 Honda Del Sol, 1999-2000 Honda CR-V, 1996-2000 Honda Civic Coupe/Hatch/Sedan, and 1998-2002 Honda Accord Coupe/Sedan. It also supports specific engine codes such as Acura/Honda B20Z2, F20C1/F22C1, F23A 1/4/5, and D16Y 5/7.