Fuelab Universal EFI Adjustable Fuel Pressure Regulator 25-90 psi (2) -10AN Inlets (1) -6AN Return Blue

Fuelab Adjustable EFI Fuel Pressure Regulator 25-90 psi -10AN Inlets -6AN Return Blue | 25-90 PSI Adjustable Range | EFI Fuel Pressure Regulator

Overview

The Fuelab Adjustable EFI Fuel Pressure Regulator is a versatile and precision-engineered component designed to provide consistent and adjustable fuel pressure control for electronic fuel injection systems. Suitable for a wide range of applications, including gasoline, diesel, methanol, and ethanol fuels, this regulator is ideal for Subaru enthusiasts and tuners who demand reliable fuel delivery and precise pressure management. Its universal fitment allows it to be integrated into various setups, making it a practical choice for custom fuel systems or performance upgrades.

Crafted from billet aluminum and finished with a durable anodized coating that meets military MIL-A-8625 Type II standards, this regulator combines robust construction with fine-thread pitch adjustment for accurate tuning. The inclusion of dual -10AN inlet ports and a -6AN return port, along with a 1/8 inch NPT gauge port and pressure reference port, reflects a thoughtful design focused on flexibility and ease of installation. The regulator’s mounting bracket and stainless steel hardware further enhance its adaptability and durability.

For Subaru owners, maintaining optimal fuel pressure is critical to achieving consistent engine performance and supporting power upgrades. This regulator’s wide adjustable range of 25 to 90 psi allows fine-tuning of fuel delivery to match various fuel pump setups and engine demands. Whether you are upgrading your WRX, STI, or other Subaru models with aftermarket fuel systems or tuning for higher boost levels, this regulator ensures stable fuel pressure, improving throttle response and overall drivability.

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 military-grade anodized finish, it delivers precise fuel pressure control for Subaru enthusiasts seeking reliable and tunable fuel system performance.

• Brand: Fuelab
• Product: Adjustable EFI Fuel Pressure Regulator 25-90 psi -10AN Inlets -6AN Return Blue
• Part Number: 51501-3
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Blue Anodized (MIL-A-8625, Type II)
• Construction: CNC Machined with Fine Thread Pitch Adjustment
• Origin: Not Specified
• Pressure Range: 25-90 psi adjustable
• Inlet Ports: Two -10AN
• 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 included
• Warranty: Limited Lifetime

Key Benefits

• Performance: Enables precise fuel pressure tuning from 25 to 90 psi for optimized EFI system performance.
• Durability: Billet aluminum construction with military-grade anodizing ensures long-lasting corrosion resistance and strength.
• Fitment: Universal design with multiple inlet and return ports fits a wide range of Subaru and other EFI applications.
• Adjustability: Fine thread pitch allows for smooth and accurate pressure adjustments to match specific fuel system requirements.
• Compatibility: Supports various fuel types including gasoline, diesel, methanol, and ethanol, making it versatile for different setups.
• Quality: Includes a sturdy mounting bracket and stainless steel hardware for secure installation and reliability.

What's Included

• 1× Fuelab Adjustable EFI Fuel Pressure Regulator 25-90 psi -10AN Inlets -6AN Return Blue
• 1× 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 those familiar with fuel system components, but professional installation is recommended to ensure proper fuel line connections and pressure calibration. The regulator’s universal fitment and included mounting hardware simplify integration into custom or upgraded fuel systems. No special tools beyond standard fuel line wrenches and a pressure gauge are required. Adjusting fuel pressure should be done carefully, ideally with a fuel pressure gauge connected to the regulator’s port, to match your Subaru’s specific fuel pump and engine tuning needs.

• Professional Installation: Recommended
• Modifications Required: None; designed for universal compatibility
• Verify Compatibility: Confirm fitment with your specific Subaru model and fuel system setup

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