AEM's High Volume Fuel Rails feature a 1/2-inch fuel bore, which is capable of flowing enough fuel to support 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 the ends of each rail are pre-tapped to accept -6 AN or 9/16" x 18 fittings for users who want to use custom fuel lines.

• No additional parts required for installation
• Specifically engineered for each application
• O.E. fuel pressure regulator or AEM adjustable fuel pressure regulator mounts directly to rail
• Comprehensive installation instructions, hardware, fittings and injector O-rings included
• Manufactured and assembled in the USA