Go Fast Bits FX-S 8050 Fuel Pressure Regulator with 1/8" NPT ports

GFB FX-S Fuel Pressure Regulator – Ultimate Performance & Reliability

Fuel Delivery… Perfected! 🔥

When it comes to EFI fuel pressure regulation, precision, reliability, and flow capacity matter. The Go Fast Bits (GFB) FX-S Fuel Pressure Regulator is designed to outperform stock regulators while maintaining factory-like sealing for easy startups and consistent fuel pressure.

Key Features of the GFB FX-S:

✅ High-Flow Capacity – Supports up to 750 liters per hour at 25 PSI
✅ Fully Adjustable – Static fuel pressure adjustable from 25 PSI to 80 PSI
✅ 1:1 Fuel Pressure Rise Rate – Ensures precise fueling under boost
✅ Advanced Valve Seat Design – Teflon co-polymer seat with a stainless steel spherical valve for superior sealing and pressure retention after shutdown
✅ Double Reinforced Diaphragm – Twice the reinforcing material for 500+ PSI burst strength
✅ Leak-Free Vacuum/Boost Adjustability – O-ring sealed spring pre-load adjustment prevents leaks
✅ Multiple Port Configurations – (4) 1/8” NPT body ports for fuel inlet(s), pressure gauge, ECU sensor, plus (1) 1/8” NPT return port
✅ Completely Serviceable – Built for long-term reliability and easy maintenance

Why Choose the GFB FX-S?

Unlike many aftermarket regulators that use metal-to-metal valve seats, which can leak fuel pressure when the engine is shut off, the GFB FX-S incorporates a soft, durable co-polymer valve seat. This prevents fuel pressure bleed-off, ensuring easier cold starts and more consistent fuel delivery—especially important for high-performance and boosted applications.

With multiple fuel inlet and gauge ports, the FX-S offers versatile setup options, including:
🔹 Parallel Fuel Rail Configurations
🔹 Returnless “Deadhead” Systems
🔹 Dual Gauge Monitoring (Mechanical & ECU Sensor)

Built to handle pump gasoline, ethanol (E85), methanol, and diesel, the FX-S regulator is engineered for performance enthusiasts who demand precision, durability, and flexibility in their fuel system.

Upgrade Your Fuel System Today!

If you're increasing power and running a larger fuel pump, the GFB FX-S ensures your fuel system keeps up—without pressure spikes, leaks, or startup issues.

🔧 Get the GFB FX-S Fuel Pressure Regulator today and take control of your fuel delivery! 💪🔥