Fuelab Universal EFI Adjustable Fuel Pressure Regulator 25-90 psi (2) -6AN Inlets (1) -6AN Return Gold

Fuelab Adjustable EFI Fuel Pressure Regulator Gold | 25-90 PSI Adjustable | EFI Fuel Pressure Regulator

Overview

The Fuelab Adjustable EFI Fuel Pressure Regulator in Gold is a universal solution designed to precisely control fuel pressure in electronic fuel injection (EFI) systems. Suitable for a wide range of applications, this regulator supports gasoline, diesel, methanol, and ethanol fuels, making it an ideal choice for Subaru enthusiasts looking to optimize fuel delivery for performance or reliability upgrades. Its adjustable pressure range of 25-90 PSI allows fine-tuning to match specific engine requirements and fuel system setups.

Crafted from billet aluminum and finished with a military-grade anodize per MIL-A-8625 Type II standards, this regulator combines durability with corrosion resistance. The design incorporates two -6AN inlet ports and one -6AN return port, providing versatile plumbing options for complex fuel systems. A fine thread pitch adjustment knob ensures precise pressure control, while the included mounting bracket and stainless steel hardware facilitate secure installation in various engine bays.

For Subaru owners, maintaining stable and accurate fuel pressure is critical to achieving consistent engine performance and tuning flexibility. This regulator’s compatibility with multiple fuel types and its adjustable range make it a practical upgrade for WRX, STI, BRZ, and other Subaru models running modified or upgraded fuel systems. The inclusion of gauge and pressure reference ports further supports detailed fuel system monitoring and diagnostics.

Features & Specifications

This Fuelab Adjustable EFI Fuel Pressure Regulator is engineered for universal EFI applications and features a 25-90 PSI adjustable pressure range. Constructed from billet aluminum with a durable gold anodized finish, it delivers precise fuel pressure control for Subaru enthusiasts seeking reliable and tunable fuel system management.

• Brand: Fuelab
• Product: Adjustable EFI Fuel Pressure Regulator Gold
• Part Number: 51502-5
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Gold Anodized (MIL-A-8625 Type II)
• Construction: CNC Machined
• Origin: Not specified
• Pressure Range: 25-90 PSI
• Inlet Ports: Two -6AN
• Return Port: One -6AN
• Fuel Compatibility: Gasoline, Diesel, Methanol, Ethanol
• Gauge Port: 1/8 inch NPT with plug
• Pressure Reference Port: 1/8 inch NPT with barbed fitting
• Mounting: Versatile bracket with stainless steel hardware
• Warranty: Limited Lifetime

Key Benefits

• Performance: Enables precise fuel pressure tuning for optimized engine performance and fuel delivery consistency.
• Durability: Billet aluminum construction with military-grade anodizing ensures long-lasting corrosion resistance and strength.
• Fitment: Universal design with multiple inlet and return ports accommodates a wide range of Subaru EFI fuel systems and custom setups.
• Adjustability: Fine thread pitch adjustment allows for accurate pressure control within a broad 25-90 PSI range.
• Monitoring: Integrated gauge and pressure reference ports support external fuel pressure monitoring and diagnostics.
• Fuel Compatibility: Supports gasoline, diesel, methanol, and ethanol fuels, ideal for diverse Subaru performance builds.

What's Included

• 1× Fuelab Adjustable EFI Fuel Pressure Regulator Gold
• Versatile mounting bracket
• Stainless steel mounting hardware
• 1/8 inch NPT gauge port plug
• Installation instructions

Installation & Compatibility

Installation of the Fuelab Adjustable EFI Fuel Pressure Regulator is straightforward for enthusiasts with basic mechanical skills and common hand tools. The universal fitment and included mounting bracket allow flexible placement in most engine bays. No special tools are required beyond standard wrenches and fuel line fittings. Adjusting fuel pressure is done via the fine-threaded knob, enabling precise tuning without guesswork. This regulator is compatible with a variety of Subaru models equipped with EFI systems, but it is essential to verify fitment and fuel line sizing for your specific vehicle and setup. Professional installation is recommended for complex fuel system modifications or if integrating with aftermarket tuning components.

• Professional Installation: Recommended for complex fuel systems
• Modifications Required: None for standard EFI plumbing; verify hose and fitting sizes
• Verify Compatibility: Confirm fitment and fuel system requirements for your Subaru model

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