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AEM

High Volume Fuel Rail Black - B18B1, B18C1, B18C5

Fits: Acura

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Available To Order, Ships Around Nov 7, 2026

AEM High Volume Fuel Rail Black - B18B1, B18C1, B18C5
Fits: Acura
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Fitment

Please Note: For Acura B18B1, B18C1 and B18C5 engines.

Description

The AEM High Volume Fuel Rail for Acura B18B1, B18C1 and B18C5 engines features a 1/2-inch fuel bore to support fuel flow for applications up to 1,000 horsepower, and dampens backpressure pulses created by larger injectors while working with stock injector sizes.

  • Supports fuel flow up to 1,000 horsepower
  • 1/2-inch fuel bore dampens backpressure pulses from larger fuel injectors and works with stock injector sizes
  • 1/8 NPT port included for a nitrous set up or fuel pressure gauge
  • Pre-tapped for -6 AN or 9/16"x18 fittings; a custom fuel line fitting is included for the factory fuel line
  • CNC-machined from billet aluminum with black anodizing and laser engraving
  • Comprehensive installation instructions, hardware, fittings and injector O-rings included
  • Manufactured and assembled in the USA
  • Part number: 25-100BK
  • Fitment: Acura B18B1, B18C1 and B18C5 engines

Frequently Asked Questions

Does this fit my Acura engine?
This fuel rail fits Acura B18B1, B18C1 and B18C5 engines.

What is included in the box?
The box contains the fuel rail with comprehensive installation instructions, hardware, fittings and injector O-rings.

How does this fuel rail install?
No additional parts are required for installation - the rail installs with the factory fuel line using the supplied fitting, and also works with custom fuel lines.

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For AEM warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov