Radium Engineering Nissan VQ FPD Adapter (8AN ORB / 27mm Bore)

For a properly planned performance build, the Radium Engineering Nissan VQ FPD Adapter (8AN ORB / 27mm Bore) reduces pressure pulsations created by injector opening and fuel-pump operation so pressure at the rail stays more stable. Smoother fuel pressure can improve consistency in high-flow EFI systems, particularly when injector events or rigid plumbing create noticeable pressure oscillation.

This version is built around 8AN ORB AN/ORB sizing; verify those details against your existing plumbing and hardware before ordering. Choose the correct pressure range and mounting thread. Radium specifies these dampers are not for the low-pressure side of mechanical direct-injection pumps.