Can I use this fuel rail with stock injectors on my 99-00 Civic Si?

Yes, the 1/2-inch bore on this AEM fuel rail is large enough to support high horsepower applications but also works perfectly with stock injector sizes.

What is the extra port on the fuel rail for?

The additional 1/8th NPT port is included to allow for the installation of a fuel pressure gauge or a nitrous system.

Does this fuel rail come with all the fittings needed to connect my fuel lines?

It includes a fitting for the factory fuel line and the ends are tapped to accept -6 AN or 9/16"x18 fittings. You will need to purchase the specific -6 AN or 9/16"x18 fittings separately if you plan to run custom fuel lines.

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Specifications

Brand: AEM
Part #: 25-103BK
UPC: 840879019822

AEM 99-00 Honda Civic Si Black Fuel Rail

Name: AEM 99-00 Honda Civic Si Black Fuel Rail
Brand: AEM
SKU: aem-aem-99-00-honda-civic-si-black-fuel-rail-t14-11120
Price: 170.96 USD
Availability: InStock

$170.96

Only 9 left in stock

AEM's High Volume Fuel Rail for your 99-00 Civic Si. It supports up to 1,000 HP and includes an extra port for gauges or nitrous.

Key Features

High Volume Fuel Bore — 1/2-inch bore supports fuel flow for up to 1,000 horsepower and dampens backpressure pulses.
Extra Port Included — Features an additional 1/8th NPT port for a fuel pressure gauge or nitrous setup.
Custom Fuel Line Ready — Includes a fitting for the factory fuel line and tapped ends for -6 AN or 9/16"x18 fittings.
Black Finish — A clean black finish to match your engine bay.
Vehicle Specific Fitment — Designed for the 99-00 Honda Civic Si with B16A2 and B16A3 engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

AEM High Volume fuel rails feature a 1/2-inch fuel bore to support fuel flow for applications up to 1,000 horsepower. This large bore also dampens backpressure pulses created by larger injectors and works perfectly with stock injector sizes. An additional 1/8th NPT port is included to accommodate a nitrous set up or fuel pressure gauge. A custom fuel line fitting is included for the factory fuel line, and in most cases the ends of each rail are pre tapped to accept -6 AN or 9/16"x18 fittings for users who want to use custom fuel lines.High Volume Fuel Rail. Black. Honda B16A2 & B16A3