{"product_id":"aem-25-303bk-adjustable-fuel-pressure-regulator-for-honda-and-acura","title":"AEM 25-303BK Adjustable Fuel Pressure Regulator for Honda and Acura","description":"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.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.\nFits Acura\/Honda - B17A1\/B18A1 - C30A1\/C32 B1\/A6 - D15B6\/D16A 1\/6 - G25A 1\/4 - H22A1\/H23A1 (must use AEM Fuel Rail)\n\u003cul\u003e\n  \u003cli\u003ePatented interchangeable discharge orifices match output of virtually any fuel pump (single large port included)\u003c\/li\u003e\n  \u003cli\u003eMounts directly to O.E. fuel rail or AEM High Volume Fuel Rail\u003c\/li\u003e\n  \u003cli\u003eAdjustable from 20 psi to maximum fuel pump capacity\u003c\/li\u003e\n  \u003cli\u003eBoost dependent rising fuel pressure rate (1:1)\u003c\/li\u003e\n  \u003cli\u003eNo additional parts required for installation\u003c\/li\u003e\n  \u003cli\u003eCNC-machined from 6061-T6 billet aluminum\u003c\/li\u003e\n  \u003cli\u003eAccept a -6 AN or 9\/16\"x18 fittings\u003c\/li\u003e\n  \u003cli\u003ePatent # 6,298,828\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AEM 25-303BK Adjustable Fuel Pressure Regulator is designed for Honda and Acura fuel systems requiring precise fuel pressure control and increased fuel delivery capability. Supporting engines producing up to 1,000 horsepower, this regulator helps maintain consistent fuel pressure under demanding street, track, and performance applications. Its boost-referenced rising-rate design increases fuel pressure at a 1:1 ratio as boost rises, helping support proper fuel delivery in forced-induction applications.\u003c\/p\u003e\n\n\u003cp\u003eAEM's patented interchangeable discharge-port system allows the regulator output to be matched to virtually any fuel pump. A single large discharge orifice is included, while the regulator base accepts -6 AN or 9\/16-inch by 18 fittings. A custom barb fitting is also included to accommodate the factory fuel hose. The regulator mounts directly to the original equipment fuel rail or an AEM High Volume Fuel Rail, with no additional installation parts required.\u003c\/p\u003e\n\n\u003cp\u003eCNC-machined from durable 6061-T6 billet aluminum, the AEM 25-303BK provides adjustable fuel pressure from 20 psi up to the maximum capacity of the fuel pump. It is compatible with select Acura and Honda engines, including B17A1, B18A1, C30A1, C32B1, C32A6, D15B6, D16A1, G25A1, G25A4, H22A1, and H23A1 applications. H22A1 and H23A1 installations must use an AEM Fuel Rail. Listed fitment includes select 1995–2001 Honda Prelude models. This product is intended for racing and off-road use and is not emissions-certified for street use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e AEM adjustable fuel pressure regulator, single large discharge orifice, and custom factory-fuel-hose barb fitting.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh-Flow Performance: Supports fuel systems for engines producing up to 1,000 horsepower.\u003c\/li\u003e\n\u003cli\u003eInterchangeable Discharge Ports: Patented port design matches regulator output to virtually any fuel pump; one large discharge port is included.\u003c\/li\u003e\n\u003cli\u003eAdjustable Fuel Pressure: Adjusts from 20 psi to the maximum fuel pump capacity for precise system tuning.\u003c\/li\u003e\n\u003cli\u003eBoost-Referenced Operation: Provides a 1:1 rising fuel pressure rate for consistent fuel delivery under boost.\u003c\/li\u003e\n\u003cli\u003eDirect Installation: Mounts to the original equipment fuel rail or AEM High Volume Fuel Rail without additional installation parts.\u003c\/li\u003e\n\u003cli\u003eDurable Construction: CNC-machined from 6061-T6 billet aluminum for strength and long-term performance.\u003c\/li\u003e\n\u003cli\u003eFlexible Fitting Compatibility: Accepts -6 AN or 9\/16-inch by 18 fittings and includes a custom factory-hose barb.\u003c\/li\u003e\n\u003cli\u003eApplication-Specific Fitment: Fits select Acura and Honda engines and Honda Prelude models; H22A1 and H23A1 applications require an AEM Fuel Rail.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n1986 Acura Integra LS\u003cbr\u003e\n1986 Acura Integra RS\u003cbr\u003e\n1987 Acura Integra LS\u003cbr\u003e\n1987 Acura Integra LS Special Edition\u003cbr\u003e\n1987 Acura Integra RS\u003cbr\u003e\n1988 Acura Integra LS\u003cbr\u003e\n1988 Acura Integra LS Special Edition\u003cbr\u003e\n1988 Acura Integra RS\u003cbr\u003e\n1988 Honda Civic RT 4WD\u003cbr\u003e\n1988 Honda CRX HF\u003cbr\u003e\n1988 Honda CRX Si\u003cbr\u003e\n1989 Acura Integra LS\u003cbr\u003e\n1989 Acura Integra RS\u003cbr\u003e\n1989 Honda Civic RT 4WD\u003cbr\u003e\n1989 Honda Civic Si\u003cbr\u003e\n1989 Honda CRX HF\u003cbr\u003e\n1989 Honda CRX Si\u003cbr\u003e\n1990 Acura Integra GS\u003cbr\u003e\n1990 Acura Integra LS\u003cbr\u003e\n1990 Acura Integra RS\u003cbr\u003e\n1990 Honda Civic EX\u003cbr\u003e\n1990 Honda Civic RT 4WD\u003cbr\u003e\n1990 Honda Civic Si\u003cbr\u003e\n1990 Honda CRX HF\u003cbr\u003e\n1990 Honda CRX Si\u003cbr\u003e\n1991 Acura Integra GS\u003cbr\u003e\n1991 Acura Integra LS\u003cbr\u003e\n1991 Acura Integra RS\u003cbr\u003e\n1991 Acura Legend L\u003cbr\u003e\n1991 Acura Legend LS\u003cbr\u003e\n1991 Acura NSX Base\u003cbr\u003e\n1991 Honda Civic EX\u003cbr\u003e\n1991 Honda Civic RT 4WD\u003cbr\u003e\n1991 Honda Civic Si\u003cbr\u003e\n1991 Honda CRX HF\u003cbr\u003e\n1991 Honda CRX Si\u003cbr\u003e\n1992 Acura Integra GS\u003cbr\u003e\n1992 Acura Integra GS-R\u003cbr\u003e\n1992 Acura Integra LS\u003cbr\u003e\n1992 Acura Integra RS\u003cbr\u003e\n1992 Acura Legend L\u003cbr\u003e\n1992 Acura Legend LS\u003cbr\u003e\n1992 Acura NSX Base\u003cbr\u003e\n1992 Acura Vigor GS\u003cbr\u003e\n1992 Acura Vigor LS\u003cbr\u003e\n1992 Honda Prelude Si\u003cbr\u003e\n1992 Honda Prelude Si 4WS\u003cbr\u003e\n1993 Acura Integra GS\u003cbr\u003e\n1993 Acura Integra GS-R\u003cbr\u003e\n1993 Acura Integra LS\u003cbr\u003e\n1993 Acura Integra RS\u003cbr\u003e\n1993 Acura Legend L\u003cbr\u003e\n1993 Acura Legend LS\u003cbr\u003e\n1993 Acura NSX Base\u003cbr\u003e\n1993 Acura Vigor GS\u003cbr\u003e\n1993 Acura Vigor LS\u003cbr\u003e\n1993 Honda Prelude Si\u003cbr\u003e\n1993 Honda Prelude Si 4WS\u003cbr\u003e\n1993 Honda Prelude VTEC\u003cbr\u003e\n1994 Acura Legend L\u003cbr\u003e\n1994 Acura Legend LS\u003cbr\u003e\n1994 Acura NSX Base\u003cbr\u003e\n1994 Acura Vigor GS\u003cbr\u003e\n1994 Acura Vigor LS\u003cbr\u003e\n1994 Honda Prelude Si\u003cbr\u003e\n1994 Honda Prelude VTEC\u003cbr\u003e\n1995 Acura Legend L\u003cbr\u003e\n1995 Acura Legend LS\u003cbr\u003e\n1995 Acura NSX Base\u003cbr\u003e\n1995 Acura NSX T\u003cbr\u003e\n1995 Acura TL Base\u003cbr\u003e\n1995 Acura TL Premium\u003cbr\u003e\n1995 Honda Prelude SE\u003cbr\u003e\n1995 Honda Prelude Si\u003cbr\u003e\n1995 Honda Prelude VTEC\u003cbr\u003e\n1996 Acura NSX Base\u003cbr\u003e\n1996 Acura NSX T\u003cbr\u003e\n1996 Acura TL Base\u003cbr\u003e\n1996 Acura TL Premium\u003cbr\u003e\n1996 Honda Prelude Si\u003cbr\u003e\n1996 Honda Prelude VTEC\u003cbr\u003e\n1997 Acura NSX Base\u003cbr\u003e\n1997 Acura NSX T\u003cbr\u003e\n1997 Acura TL Base\u003cbr\u003e\n1997 Acura TL Premium\u003cbr\u003e\n1997 Honda Prelude Base\u003cbr\u003e\n1997 Honda Prelude Type SH\u003cbr\u003e\n1998 Acura NSX Base\u003cbr\u003e\n1998 Acura NSX T\u003cbr\u003e\n1998 Acura TL Base\u003cbr\u003e\n1998 Acura TL Premium\u003cbr\u003e\n1998 Honda Prelude Base\u003cbr\u003e\n1998 Honda Prelude Type SH\u003cbr\u003e\n1999 Acura NSX Alex Zanardi Edition\u003cbr\u003e\n1999 Acura NSX Base\u003cbr\u003e\n1999 Acura NSX T\u003cbr\u003e\n1999 Honda Prelude Base\u003cbr\u003e\n1999 Honda Prelude Type SH\u003cbr\u003e\n2000 Acura NSX Base\u003cbr\u003e\n2000 Acura NSX T\u003cbr\u003e\n2000 Honda Insight Base\u003cbr\u003e\n2000 Honda Prelude Base\u003cbr\u003e\n2000 Honda Prelude Type SH\u003cbr\u003e\n2001 Acura NSX Base\u003cbr\u003e\n2001 Acura NSX T\u003cbr\u003e\n2001 Honda Insight Base\u003cbr\u003e\n2001 Honda Prelude Base\u003cbr\u003e\n2001 Honda Prelude Type SH\u003cbr\u003e\n2002 Acura NSX T\u003cbr\u003e\n2002 Honda Insight Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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