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    • Home
    • Honda B-Series
    • Fuel Delivery
    • AEM Honda Acura Adjustable Fuel Pressure Regulator
  • AEM Honda Acura Rail Regulator 25-300bk
  • AEM Honda Acura Rail Regulator 25-300bk

    AEM Honda Acura Adjustable Fuel Pressure Regulator

    AEM

    MSRP:
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    Product Description

    AEM Honda/Acura Adjustable Fuel Pressure Regulator

    AEM's Honda/Acura Adjustable Fuel Pressure Regulators are capable of supporting enough fuel flow for engines up to 1000 horsepower. Our patented interchangeable discharge ports enable the regulator's output to match the output of any fuel pump. A single large discharge orifice is included, additional ports are sold separately). AEM includes a custom barb fitting to accommodate the factory fuel hose and the base of each regulator is tapped to accept a -6 AN or 9/16"x18 fittings.

     

    • CNC-machined from 6061-T6 billet aluminum
    • Mounts directly to O.E. fuel rail or AEM High Volume Fuel Rail
    • Patented interchangeable discharge orifices match output of virtually any fuel pump (single large port included)
    • Accept a -6 AN or 9/16”x18 fittings
    • Adjustable from 20 psi to maximum fuel pump capacity
    • Boost dependent rising fuel pressure rate (1:1)
    • No additional parts required for installation
    • Manufactured and assembled in the USA

    Application

    25-304BK
    Acura
    1997
    CL
    2.2L/2156ccL4 [F22B1]
     
    25-301BK
    Acura
    1998
    CL
    2.3L/2254ccL4 [F23A1]
     
    25-304BK
    Acura
    1997
    CL Premium
    2.2L/2156ccL4 [F22B1]
     
    25-301BK
    Acura
    1998-1999
    CL Premium
    2.3L/2254ccL4 [F23A1]
     
    25-303BK
    Acura
    1990-1993
    Integra GS
    1.8L/1834ccL4 [B18A1]
     
    25-300BK
    Acura
    1997-2001
    Integra GS
    1.8L/1834ccL4 [B18B1]
     
    25-303BK
    Acura
    1992-1993
    Integra GS-R
    1.7L/1678ccL4 [B17A1]
     
    25-300BK
    Acura
    1994-2001
    Integra GS-R
    1.8L/1797ccL4 [B18C1]
     
    25-303BK
    Acura
    1986-1989
    Integra LS
    1.6L/1590ccL4 [D16A1]
     
    25-303BK
    Acura
    1990-1993
    Integra LS
    1.8L/1834ccL4 [B18A1]
     
    25-300BK
    Acura
    1994-2001
    Integra LS
    1.8L/1834ccL4 [B18B1]
     
    25-303BK
    Acura
    1987-1988
    Integra LS Special Edition
    1.6L/1590ccL4 [D16A1]
     
    25-303BK
    Acura
    1986-1989
    Integra RS
    1.6L/1590ccL4 [D16A1]
     
    25-303BK
    Acura
    1990-1993
    Integra RS
    1.8L/1834ccL4 [B18A1]
     
    25-300BK
    Acura
    1994-1998
    Integra RS
    1.8L/1834ccL4 [B18B1]
     
    25-300BK
    Acura
    1995-1996
    Integra Special Edition
    1.8L/1834ccL4 [B18B1]
     
    25-300BK
    Acura
    1997-1998
    Integra Type R
    1.8L/1797ccL4 [B18C5]
     
    25-300BK
    Acura
    2000-2001
    Integra Type R
    1.8L/1797ccL4 [B18C5]
     
    25-303BK
    Acura
    1991-2001
    NSX
    3.0L/2977ccV6 [C30A1]
     
    25-303BK
    Acura
    1997-1998
    NSX
    3.2L/3179ccV6 [C32B1]
     
    25-303BK
    Acura
    1999-2001
    NSX
    3.2L/3179ccV6 [C32B1]
     
    25-303BK
    Acura
    1999
    NSX Alex Zanardi Edition
    3.2L/3179ccV6 [C32B1]
     
    25-303BK
    Acura
    1995-2002
    NSX T
    3.0L/2977ccV6 [C30A1]
     
    25-303BK
    Acura
    1997
    NSX T
    3.2L/3179ccV6 [C32B1]
     
    25-303BK
    Acura
    1998-2002
    NSX T
    3.2L/3179ccV6 [C32B1]
     
    25-303BK
    Acura
    1995-1998
    TL
    2.5L/2451ccL5 [G25A4]
     
    25-303BK
    Acura
    1996-1998
    TL
    3.2L/3206ccV6 [C32A6]
     
    25-303BK
    Acura
    1995-1998
    TL Premium
    2.5L/2451ccL5 [G25A4]
     
    25-303BK
    Acura
    1996-1998
    TL Premium
    3.2L/3206ccV6 [C32A6]
     
    25-303BK
    Acura
    1992-1994
    Vigor GS
    2.5L/2451ccL5 [G25A1]
     
    25-303BK
    Acura
    1992-1994
    Vigor LS
    2.5L/2451ccL5 [G25A1]
     
    25-300BK
    Honda
    1993
    Accord 10th Anniversary
    2.2L/2156ccL4 [F22A1]
    Must use AEM Fuel Rail
    25-304BK
    Honda
    1996
    Accord 25th Anniversary Edition
    2.2L/2156ccL4 [F22B2]
     
    25-300BK
    Honda
    1990-1993
    Accord DX
    2.2L/2156ccL4 [F22A1]
    Must use AEM Fuel Rail
    25-304BK
    Honda
    1994-1995
    Accord DX
    2.2L/2156ccL4 [F22B2]
     
    25-304BK
    Honda
    1996
    Accord DX
    2.2L/2156ccL4 [F22B2]
     
    25-304BK
    Honda
    1997
    Accord DX
    2.2L/2156ccL4 [F22B2]
     
    25-301BK
    Honda
    1998-2002
    Accord DX
    2.3L/2254ccL4 [F23A5]
     
    25-300BK
    Honda
    1990-1991
    Accord EX
    2.2L/2156ccL4 [F22A1]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1990-1991
    Accord EX
    2.2L/2156ccL4 [F22A4]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1991-1993
    Accord EX
    2.2L/2156ccL4 [F22A6]
    Must use AEM Fuel Rail
    25-304BK
    Honda
    1994-1997
    Accord EX
    2.2L/2156ccL4 [F22B1]
     
    25-301BK
    Honda
    1998-2002
    Accord EX
    2.3L/2254ccL4 [F23A1]
     
    25-301BK
    Honda
    1998-2002
    Accord EX
    2.3L/2254ccL4 [F23A4]
     
    25-300BK
    Honda
    1990-1993
    Accord LX
    2.2L/2156ccL4 [F22A1]
    Must use AEM Fuel Rail
    25-304BK
    Honda
    1994-1997
    Accord LX
    2.2L/2156ccL4 [F22B2]
     
    25-301BK
    Honda
    1998-2002
    Accord LX
    2.3L/2254ccL4 [F23A1]
     
    25-301BK
    Honda
    1999-2002
    Accord LX
    2.3L/2254ccL4 [F23A4]
     
    25-300BK
    Honda
    1986
    Accord LXi
    2.0L/1955ccL4 [BT]
     
    25-300BK
    Honda
    1987-1989
    Accord LXi
    2.0L/1955ccL4 [A20A3]
     
    25-300BK
    Honda
    1991
    Accord SE
    2.2L/2156ccL4 [F22A6]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1993
    Accord SE
    2.2L/2156ccL4 [F22A6]
    Must use AEM Fuel Rail
    25-304BK
    Honda
    1997
    Accord SE
    2.2L/2156ccL4 [F22B2]
     
    25-301BK
    Honda
    2000
    Accord SE
    2.3L/2254ccL4 [F23A1]
     
    25-301BK
    Honda
    2000
    Accord SE
    2.3L/2254ccL4 [F23A4]
     
    25-301BK
    Honda
    2002
    Accord SE
    2.3L/2254ccL4 [F23A1]
     
    25-301BK
    Honda
    2002
    Accord SE
    2.3L/2254ccL4 [F23A4]
     
    25-300BK
    Honda
    1989
    Accord SEi
    2.0L/1955ccL4 [A20A3]
     
    25-304BK
    Honda
    1996-1997
    Accord Value Package
    2.2L/2156ccL4 [F22B2]
     
    25-301BK
    Honda
    2001-2002
    Accord Value Package
    2.3L/2254ccL4 [F23A5]
     
    25-300BK
    Honda
    1992-1995
    Civic CX
    1.5L/1493ccL4 [D15B8]
     
    25-301BK
    Honda
    1996-2000
    Civic CX
    1.6L/1590ccL4 [D16Y7]
     
    25-300BK
    Honda
    1993-1995
    Civic del Sol S
    1.5L/1493ccL4 [D15B7]
     
    25-301BK
    Honda
    1996-1997
    Civic del Sol S
    1.6L/1590ccL4 [D16Y7]
     
    25-300BK
    Honda
    1993-1995
    Civic del Sol Si
    1.6L/1590ccL4 [D16Z6]
     
    25-304BK
    Honda
    1996-1997
    Civic del Sol Si
    1.6L/1590ccL4 [D16Y8]
     
    25-300BK
    Honda
    1994-1995
    Civic del Sol VTEC
    1.6L/1590ccL4 [B16A3]
     
    25-300BK
    Honda
    1996-1997
    Civic del Sol VTEC
    1.6L/1590ccL4 [B16A2]
     
    25-300BK
    Honda
    1992-1995
    Civic DX
    1.5L/1493ccL4 [D15B7]
     
    25-301BK
    Honda
    1996-2000
    Civic DX
    1.6L/1590ccL4 [D16Y7]
     
    25-303BK
    Honda
    1990-1991
    Civic EX
    1.6L/1590ccL4 [D16A6]
     
    25-300BK
    Honda
    1992-1995
    Civic EX
    1.6L/1590ccL4 [D16Z6]
     
    25-304BK
    Honda
    1996-2000
    Civic EX
    1.6L/1590ccL4 [D16Y8]
     
    25-301BK
    Honda
    1996-2000
    Civic HX
    1.6L/1590ccL4 [D16Y5]
     
    25-300BK
    Honda
    1992-1995
    Civic LX
    1.5L/1493ccL4 [D15B7]
     
    25-301BK
    Honda
    1996-2000
    Civic LX
    1.6L/1590ccL4 [D16Y7]
     
    25-303BK
    Honda
    1988-1991
    Civic RT 4WD
    1.6L/1590ccL4 [D16A6]
     
    25-303BK
    Honda
    1989-1991
    Civic Si
    1.6L/1590ccL4 [D16A6]
     
    25-300BK
    Honda
    1992-1995
    Civic Si
    1.6L/1590ccL4 [D16Z6]
     
    25-300BK
    Honda
    1999-2000
    Civic Si
    1.6L/1595ccL4 [B16A2]
     
    25-301BK
    Honda
    1999
    Civic Value Package
    1.6L/1590ccL4 [D16Y7]
     
    25-300BK
    Honda
    1992-1995
    Civic VX
    1.5L/1493ccL4 [D15Z1]
     
    25-304BK
    Honda
    1998
    CR-V EX
    2.0L/1972ccL4 [B20B4]
     
    25-301BK
    Honda
    1999-2000
    CR-V EX
    2.0L/1972ccL4 [B20Z2]
     
    25-304BK
    Honda
    1997-1998
    CR-V LX
    2.0L/1972ccL4 [B20B4]
     
    25-301BK
    Honda
    1999-2000
    CR-V LX
    2.0L/1972ccL4 [B20Z2]
     
    25-301BK
    Honda
    2000
    CR-V SE
    2.0L/1972ccL4 [B20Z2]
     
    25-303BK
    Honda
    1988-1989
    CRX HF
    1.5L/1493ccL4
     
    25-303BK
    Honda
    1990-1991
    CRX HF
    1.5L/1493ccL4 [D15B6]
     
    25-303BK
    Honda
    1988-1991
    CRX Si
    1.6L/1590ccL4 [D16A6]
     
    25-303BK
    Honda
    2000-2002
    Insight
    1.0L/995cc (61ci) L3 ELEC/GAS [ECA1]
     
    25-303BK
    Honda
    1997-2001
    Prelude
    2.2L/2156ccL4 [H22A4]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1988-1991
    Prelude 2.0 Si
    2.0L/1958ccL4 [B20A5]
     
    25-300BK
    Honda
    1988-1989
    Prelude 2.0 Si 4WS
    2.0L/1958ccL4 [B20A5]
     
    25-300BK
    Honda
    1992-1996
    Prelude S
    2.2L/2156ccL4 [F22A1]
    Must use AEM Fuel Rail
    25-303BK
    Honda
    1995
    Prelude SE
    2.3L/2259ccL4 [H23A1]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1990
    Prelude Si
    2.1L/2056ccL4 [B21A1]
     
    25-300BK
    Honda
    1991
    Prelude Si
    2.1L/2056ccL4 [B21A1]
     
    25-303BK
    Honda
    1992-1996
    Prelude Si
    2.3L/2259ccL4 [H23A1]
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1990
    Prelude Si 4WS
    2.1L/2056ccL4 [B21A1]
     
    25-300BK
    Honda
    1991
    Prelude Si 4WS
    2.1L/2056ccL4 [B21A1]
     
    25-303BK
    Honda
    1992
    Prelude Si 4WS
    2.3L/2259ccL4 [H23A1]
    Must use AEM Fuel Rail
    25-303BK
    Honda
    1993
    Prelude Si 4WS
    2.3L/2259ccL4
    Must use AEM Fuel Rail
    25-300BK
    Honda
    1990
    Prelude Si ALB
    2.1L/2056ccL4 [B21A1]
     
    25-300BK
    Honda
    1991
    Prelude Si ALB
    2.1L/2056ccL4 [B21A1]
     
    25-303BK
    Honda
    1997-2001
    Prelude Type SH
    2.2L/2156ccL4 [H22A4]
    Must use AEM Fuel Rail
    25-303BK
    Honda
    1993-1996
    Prelude VTEC
    2.2L/2156ccL4 [H22A1]
    Must use AEM Fuel Rail
    25-301BK
    Honda
    2000-2003
    S2000
    2.0L/1997ccL4 [F20C1]
     
    25-301BK
    Honda
    2004-2005
    S2000
    2.2L/2157ccL4 [F22C1]
     

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    AEM Honda Acura Rail Regulator 25-300bk
    AEM
    AEM Honda Acura Adjustable Fuel Pressure Regulator

    1 Review Hide Reviews Show Reviews

    • 5
      Review

      Posted by Kevan payne on 12th Jun 2020

      Great quality product paired it with the aem billet rail on my em1 and I have no complaints. If you have the edelbrock Victor X intake the fitment is very tight on the return line .

    ×
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