AEM 25-100BK High Volume Fuel Rail BLACK for Acura B18B1, B18C1, B18C5 AEM High Volume Fuel Rail. Black. Acura B18B1, B18C1 & B18C5 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. Supports fuel flow up to 1,000 horsepower No additional parts required for installation - installs with factory fuel line using supplied fitting Pre-tapped for -6 AN or 9/16"x 18 fittings Specifically engineered for each application Works with factory fuel line or custom fuel lines 1/2 inch bore dampens backpressure pulses from larger fuel injectors 1/8 NPT port included for nitrous pick up or fuel pressure gauge CNC Machined from billet aluminum Black anodizing with laser engraving Manufactured and assembled in the USA |