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  • AEM Black Adjustable Fuel Pressure Regulator For Honda/Acura 1986-2002 Supports Up to 1000HP P/N 25-303BK
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AEM Black Adjustable Fuel Pressure Regulator For Honda/Acura 1986-2002 Supports Up to 1000HP P/N 25-303BK

AEM
AEM25-303BK
In stock
Fuel Pressure Regulators
$245.95 $217.95
The AEM Black Adjustable Fuel Pressure Regulator is engineered to deliver precise fuel pressure control for...
$217.95
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AEM Black Adjustable Fuel Pressure Regulator For Honda/Acura 1994-1997 Supports Up to 1000HP P/N 25-304BK
AEM Black Adjustable Fuel Pressure Regulator For Honda/Acura 1994-1997 Supports Up to 1000HP P/N 25-304BK
$245.95 $217.95
AEM Black Adjustable Fuel Pressure Regulator For Honda/Acura 1986-2002 Supports Up to 1000HP P/N 25-303BK
Description

The AEM Black Adjustable Fuel Pressure Regulator is engineered to deliver precise fuel pressure control for Honda and Acura engines from 1986 to 2002. Whether you're running a naturally aspirated build or a high-horsepower forced induction setup, this regulator supports up to 1000 HP with consistent and reliable fuel delivery.

Featuring AEMƒ??s patented interchangeable discharge ports, this regulator matches the output of nearly any fuel pump, eliminating pressure spikes and fueling inconsistencies. CNC-machined from durable 6061-T6 billet aluminum, it mounts directly to the factory fuel rail or AEMƒ??s High Volume Fuel Rail, and includes a custom barb fitting for easy integration with factory fuel lines.

Key Features:

  • Supports Up to 1000 Horsepower: Delivers high-flow performance for aggressive street or track builds.

  • Patented Discharge Ports: Interchangeable ports allow compatibility with nearly any fuel pump (includes one large port).

  • Direct Fitment: Mounts to OEM fuel rails or AEM High Volume Fuel Rail without modifications.

  • CNC-Machined Housing: Built from 6061-T6 billet aluminum for strength and reliability.

  • Adjustable Fuel Pressure: Tune from 20 PSI up to your fuel pumpƒ??s max capacity.

  • Boost-Dependent 1:1 Rise Rate: Ideal for turbocharged and supercharged engines requiring rising rate fuel delivery.

  • Easy Installation: Comes complete with barb fitting; accepts -6 AN or 9/16"x18 fittingsƒ??no extra parts needed.

Specifications:

Parameter Details
Compatibility 1986ƒ??2002 Honda/Acura vehicles
Max Supported Horsepower Up to 1000 HP
Material CNC-machined 6061-T6 billet aluminum
Discharge Ports Patented interchangeable orifices (1 included)
Pressure Adjustment Range 20 PSI to max fuel pump capacity
Boost Reference Rate 1:1 boost-dependent rise
Fitting Compatibility -6 AN or 9/16"x18 fittings
Installation Type Direct bolt-on; no additional parts required



This Part Fits:

?ÿ

Year Make Model Submodel
1990-1993 Acura Integra GS
1992-1993 Acura Integra GS-R
1986-1993 Acura Integra LS
1987-1988 Acura Integra LS Special Edition
1986-1993 Acura Integra RS
1991-1995 Acura Legend L
1991-1995 Acura Legend LS
1999 Acura NSX Alex Zanardi Edition
1991-2001 Acura NSX Base
1995-2002 Acura NSX T
1995-1998 Acura TL Base
1995-1998 Acura TL Premium
1992-1994 Acura Vigor GS
1992-1994 Acura Vigor LS
1990-1991 Honda Civic EX
1988-1991 Honda Civic RT 4WD
1989-1991 Honda Civic Si
1988-1991 Honda CRX HF
1988-1991 Honda CRX Si
2000-2002 Honda Insight Base
1997-2001 Honda Prelude Base
1995 Honda Prelude SE
1992-1996 Honda Prelude Si
1992-1993 Honda Prelude Si 4WS
1997-2001 Honda Prelude Type SH
1993-1996 Honda Prelude VTEC

Warranty
Installation Instructions

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Effective Date: October 2024
We offer a 30-day return policy, allowing you to request a return within 30 days of receiving your item. To qualify for a return, the item must be in its original condition—unused, with tags, and in its original packaging. A receipt or proof of purchase is also required.

To initiate a return, please contact us at info@riotparts.com. Returns must be shipped to the address provided upon request. If your return is approved, we will issue a return shipping label along with detailed instructions.

Important
Returns sent without prior authorization will not be accepted.

For any return-related inquiries, please reach out to us at info@riotparts.com.

Return Shipping Address
The return shipping address will be determined based on the requestor’s location to ensure the nearest return facility is used.

Possible return locations include:
• 10880 Lear Blvd.
Reno, NV 89506, United States
• 931 W. Bardin Rd., Suite 150–200
Arlington, TX 76017, United States
• 3035 Campus Dr.
Hatfield, PA 19440, United States
• 5789 N. Graham Road, Ste 200
Whiteland, IN 46184, United States
• 2020 NE Aloclek Dr 4711 N Lamon Ave
#118 STE 12, Hillsboro, OR 97124, United States

Damages and Issues
We recommend inspecting your order upon receipt. If you find that an item is defective, damaged, or if you received the wrong item, please contact us immediately so we can address the issue.

Exceptions / Non-Returnable Items
Certain items cannot be returned, including:
• Electrical parts that have been installed or used
• Special order parts that were custom ordered for you
• Items that have been damaged due to improper installation or use

If you have questions or concerns about a specific item, please contact us for assistance.

Exchanges
For exchanges, the quickest option is to return the item you have. Once the return is accepted, you can make a separate purchase for the new item.

Refunds
We will notify you once we receive and inspect your return to inform you whether your refund is approved. If approved, you will be automatically refunded using your original payment method within 10 business days. Please be aware that it may take additional time for your bank or credit card company to process and post the refund.

If more than 15 business days have passed since your return was approved and you haven’t received your refund, please contact us at info@riotparts.com.

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