AEM High Volume billet fuel rail, CNC-machined from 6061-T6 aluminum with a black hard-anodized finish. The 1/2in fuel bore supports up to 1,000 horsepower and dampens backpressure pulses from larger injectors while still working with stock injectors. Installs on the factory fuel line with the supplied fitting (rail ends pre-tapped for -6AN / 9/2016-2018), and includes a 1/8in NPT port for a nitrous feed or fuel-pressure gauge plus all hardware and injector O-rings.
Specifications
| Material | 6061-T6 billet aluminum |
| Finish | Black hard-anodized |
| Fuel bore | 1/2 in |
| HP support | Up to 1,000 HP |
| Ports | 1/8in NPT gauge/nitrous; -6AN / 9/16-18 ends |
| Part Number | 25-103BK |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2000 | Honda | Civic | Si |
| 1994-1997 | Honda | Civic del Sol | VTEC |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
