GFB FX-D Fuel Pressure Regulator -8AN
Maintain precise and consistent fuel pressure with the GFB FX-D Fuel Pressure Regulator. Designed for high-performance EFI fuel systems, the FX-D combines exceptional flow capacity with factory-like pressure control, making it an ideal choice for everything from street performance builds to high-horsepower race applications.
Featuring dual -8AN inlet ports, a -8AN return port, and dual 1/8″ NPT ports for pressure gauges or ECU sensors, the FX-D offers outstanding installation flexibility for a wide range of fuel system configurations. Its innovative Teflon co-polymer valve seat and spherical stainless steel valve help retain fuel pressure after engine shutdown, improving hot starts and delivering more reliable operation than conventional metal-to-metal regulator designs.
Built with a double-reinforced diaphragm capable of withstanding over 500psi burst pressure and adjustable from 25–80psi, the FX-D is compatible with petrol, E85, methanol, and diesel fuel systems. Whether you’re running a single pump or a high-flow multi-pump setup, the GFB FX-D delivers the performance, reliability, and precision serious enthusiasts demand.
Features:
- 2x -8AN inlet ports, 2x 1/8” NPT pressure gauge/sensor ports, and 1x -8AN return port
- Flows a massive 1800 liters per hour @ 25psi
- 1:1 fuel pressure rise rate
- Double layer/double reinforced diaphragms with a burst strength exceeding 500psi
- Teflon co-polymer seat with spherical stainless valve to retain fuel pressure longer after shut down
- Spring pre-load adjustment screw is o-ring sealed and does not leak vacuum/boost
- Static pressures adjustable from 25psi to 80psi
- Completely serviceable
- Multiple body ports allow for a large variety of setup options















