Accel DFI Adjustable Fuel Pressure Regulators

Accel's DFI Adjustable Fuel Pressure Regulators are engineered for high-performance fuel-injected engines that demand stable, precise, and repeatable fuel pressure control. As part of the Holley Performance family of brands, Accel brings decades of proven expertise in performance fuel and ignition systems to every regulator in the DFI lineup — making them a trusted choice for serious street builds and competition applications alike.

Each DFI regulator is fully adjustable, allowing builders and tuners to dial in exact fuel pressure beyond stock specifications. Whether correcting fuel delivery for upgraded injectors, increasing fuel volume, or supporting forced induction setups, these regulators deliver superior fuel atomization and consistent injector behavior across the full RPM and load range.

Key Features:

• Fully adjustable design allows precise tuning for increased fuel volume and superior fuel atomization
• Premium construction maintains stable fuel pressure under the most demanding street and competition conditions
• Boost-sensitive configurations available across the lineup, ideal for turbocharged, supercharged, and other forced induction applications
• Rail-mount options available for clean, direct installation at the fuel rail
• Engineered specifically for fuel-injected applications requiring precise, repeatable pressure management
• Developed as part of Accel's comprehensive DFI (Digital Fuel Injection) performance fuel system lineup
• Sold individually

From naturally aspirated performance builds to boosted competition engines, Accel DFI Adjustable Fuel Pressure Regulators deliver the flexibility and reliability that demanding applications require. Select the correct part number for your specific application from the available variants in this product line.