EFI Electronic Fuel Pressure Regulator

Engineered for high-performance EFI fuel systems, this electronic fuel pressure regulator delivers precise, stable control over a wide adjustable range of 25–90 PSID. Designed to work seamlessly with advanced fuel pumps and controllers, it combines the lightning-fast response of a mechanical regulator with the intelligence and efficiency of electronic flow control. Multiple inlet/outlet configurations make it easy to integrate into a variety of setups, from street performance to demanding motorsport applications.

Regulator Features

• Compatible with FUELAB® Prodigy fuel pumps (41401, 41402, 41403, 42401 and 42402)
• Now compatible with 617xx Series FST, 939xx Series and 72004 Fuel Pump Controller
• Patented method for demand based flow control, able to detect changes in demand before change in rail pressure is realized (U.S. Patent 7,810,470)
• Automatically reduces current draw at low flow demand for improved efficiency
• Additional analog output to monitor and track actual fuel system capacity
• Delivers the quick response of a mechanically regulated system with the advantage of electronic flow control
• Self-contained, independent system – no extra control boxes, wiring interfaces or calibration required
• Compatible with gasoline, diesel, methanol and ethanol fuels
• Constructed from billet aluminum with anodize per military MIL-A-8625, Type II for durability and corrosion resistance
• Fine thread pitch for precise fuel pressure adjustment
• Versatile mounting bracket with stainless steel hardware for secure, flexible installation
• 1/8" NPT gauge port with plug for use with an external pressure gauge
• 1/8" NPT pressure reference port with barbed fitting for easy vacuum/boost reference connection
• Backed by a limited lifetime warranty

Ideal for modern EFI performance builds, this electronic fuel pressure regulator offers consistent fuel delivery, reduced electrical load, and reliable operation under varying demand, helping you extract maximum power and reliability from your fuel system.