Vehicle Fitment

• 1996–2000 Honda Civic (CX, DX, LX, EX) with 1.6L D16Y7/D16Y8 engines
• 1996–1997 Honda Civic del Sol (S/Si) with 1.6L D16Y7/D16Y8 engines

Features

• High volume fuel rail engineered for Honda D16 engines to support increased fuel flow
• 1/2‑inch fuel bore supports fuel flow for high‑output and performance applications
• Dampens backpressure pulses from larger fuel injectors for smoother delivery
• Pre‑tapped ends accept -6 AN or 9/16″×18 fittings for custom fuel line setups
• 1/8″ NPT auxiliary port included for nitrous system pick‑up or fuel pressure gauge
• No additional parts required — installs with factory fuel line using supplied fitting
• CNC‑machined billet aluminum with black anodized finish for durability
• Complete hardware, fittings, and injector O‑rings included for installation

Specifications

• Part number: AEM 25‑109BK
• Application: High volume fuel rail
• Fitment years: 1996–2000
• Compatible vehicles: Honda Civic CX, DX, LX, EX; Civic del Sol S/Si (1996–1997)
• Engine: 1.6 L D16Y7/D16Y8 gasoline inline‑4
• Fuel rail bore diameter: 1/2 inch
• Fitting compatibility: Pre‑tapped for -6 AN or 9/16″×18 fittings
• Auxiliary port: 1/8″ NPT
• Material: CNC‑machined aluminum, black anodized
• Included hardware: fittings, billet rail, injector O‑rings
• Legal status: legal for sale/use on emissions‑controlled vehicles; does not affect emissions
• Warranty: Manufacturer’s limited warranty

Included Components

• 1x High volume fuel rail (black anodized)
• 1x Custom fuel line fitting for factory fuel line
• Injector O‑rings
• All required installation hardware
• Installation instructions

Product Description

The AEM 25‑109BK High Volume Fuel Rail is a performance fuel delivery upgrade designed specifically for **1996–2000 Honda Civic** models with 1.6 L D16Y7 and D16Y8 engines, including CX, DX, LX, EX trims, and **1996–1997 Honda Civic del Sol** S and Si variants. Its **1/2‑inch fuel bore** provides exceptional fuel flow capacity capable of supporting high‑output performance builds while also helping to smooth out backpressure pulses created by larger injectors for more consistent fuel delivery throughout the powerband.

Manufactured from durable **CNC‑machined billet aluminum** with a black anodized finish and laser engraving, this fuel rail includes a **1/8″ NPT auxiliary port** that can be used for nitrous system pick‑up or mounting a fuel pressure gauge. The ends are pre‑tapped to accept -6 AN or 9/16″×18 fittings for easy integration into custom fuel line systems, yet it also installs directly using the supplied custom fuel line fitting with your stock fuel line. With all required hardware and injector O‑rings included, the 25‑109BK offers a reliable, bolt‑on solution for increased fuel delivery in high‑flow Honda D16 engine applications while remaining legal for sale and use on emissions‑controlled vehicles because it does not affect emissions components.