AEM High Volume fuel rails feature a 1/2-inch fuel bore to support fuel flow for applications up to 1,000 horsepower. The large bore dampens backpressure pulses created by larger injectors while working perfectly with stock injector sizes. An additional 1/8th NPT port accommodates a nitrous setup or fuel pressure gauge. A custom fitting is included for the factory fuel line, and in most cases the rail ends are pre-tapped to accept -6 AN or 9/16"x18 fittings for custom fuel line setups.
WarrantyInstallation Instructions
Specifications:
- No additional parts required - installs with factory fuel line using supplied fitting
- Comprehensive installation instructions, hardware, fittings and injector O-rings included
- 1/2 inch bore dampens backpressure pulses from larger fuel injectors
- 1/8 NPT port included for nitrous pickup or fuel pressure gauge
- Pre-tapped for -6 AN or 9/16"x18 fittings
- Supports fuel flow up to 1,000 horsepower
- Manufactured and assembled in the USA
- Black anodizing with laser engraving
- CNC-machined from billet aluminum
- Part Number: 25-103BK
Vehicle Applications
- 1999 Honda Civic Si
- 2000 Honda Civic Si
- 1994 Honda Civic del Sol VTEC
- 1995 Honda Civic del Sol VTEC
- 1996 Honda Civic del Sol VTEC
- 1997 Honda Civic del Sol VTEC
FAQ
What is the benefit of AEM's High Volume fuel rail?
Its 1/2-inch fuel bore supports fuel flow for applications up to 1,000 horsepower and dampens backpressure pulses from larger injectors while still working with stock injector sizing.
Does it include mounting hardware?
Yes, it ships with a custom fitting for the factory fuel line, mounting hardware, fittings and injector O-rings; rail ends are pre-tapped for -6 AN or 9/16"x18 fittings.
Which vehicles does part 25-103BK fit?
It fits 1999-2000 Honda Civic Si and 1994-1997 Honda Civic del Sol VTEC.
