Radium Engineering Nissan RB25DET Top Feed Fuel Rail Kit

This fuel rail is for the Nissan RB25DET (non NEO) engine ONLY, commonly found in the R33 Skyline. It converts the OEM side feed fuel injector setup to top feed injectors, allowing the use of a wide variety of aftermarket fuel injectors available on the market. This kit is compatible with E85. The fuel rail has four 8AN ORB ports that can be used for fuel inlet, outlet or for plumbing option accessories. All unused ports must be plugged. The rail is extruded and CNC machined from solid 6063 aluminum and black anodized for a high quality surface finish. The green injector seats press into the intake manifold and provide a sealed base for the top feed fuel injectors to sit on. These injector seats require fuel injectors with a 14mm lower O-ring (common size). The kit includes two sets of phenolic spacers to suit multiple height injectors, offering excellent resistance to heat transfer. Fuel injectors are NOT included. To reuse the factory fuel pressure regulator, select part number 20-0303.