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

Fuelab EFI Adjustable Fuel Pressure Regulator 25-90 psi Blue | 25-90 PSI Adjustable Range | EFI Fuel Pressure Regulator

Overview

The Fuelab EFI Adjustable Fuel Pressure Regulator is a precision-engineered component designed to provide reliable and accurate fuel pressure control for electronic fuel injection (EFI) systems. With an adjustable pressure range from 25 to 90 psi, this regulator is ideal for enthusiasts and tuners seeking to optimize fuel delivery across a variety of applications, including gasoline, diesel, methanol, and ethanol fuels. Its universal fitment makes it a versatile choice for a broad range of Subaru platforms and other vehicles equipped with EFI setups.

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 precise fuel pressure tuning. The design includes dual -6AN inlet ports and a single -6AN return port, allowing for flexible plumbing configurations. Additional features such as a 1/8 inch NPT gauge port and pressure reference port enhance monitoring and integration capabilities, making it a standout choice for serious Subaru enthusiasts focused on performance and reliability.

For Subaru owners, maintaining optimal fuel pressure is critical to achieving consistent power delivery and engine efficiency, especially when upgrading fueling components or increasing boost levels. The Fuelab EFI Adjustable Fuel Pressure Regulator offers the adjustability and build quality needed to support these modifications, ensuring stable fuel pressure under varying operating conditions and fueling demands. Its compatibility with multiple fuel types also adds to its versatility for different tuning goals.

Features & Specifications

This Fuelab EFI Adjustable 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: EFI Adjustable Fuel Pressure Regulator 25-90 psi Blue
• Part Number: 51502-3
• 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 (PSID)
• 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: Precise fuel pressure adjustment ensures optimal fuel delivery for enhanced engine tuning and power consistency.
• Durability: Billet aluminum construction with military-grade anodizing provides long-lasting corrosion resistance and strength.
• Compatibility: Supports multiple fuel types including gasoline, diesel, methanol, and ethanol, making it adaptable to various Subaru setups.
• Fitment: Universal design with dual inlet and single return ports allows flexible installation in diverse EFI systems.
• Monitoring: Integrated gauge and pressure reference ports facilitate easy fuel pressure monitoring and diagnostics.
• Adjustability: Fine thread pitch adjustment enables precise tuning to match specific fueling requirements and boost levels.

What's Included

• 1× Fuelab EFI Adjustable Fuel Pressure Regulator 25-90 psi Blue
• Versatile mounting bracket
• Stainless steel mounting hardware
• 1/8 inch NPT gauge port plug
• Installation instructions

Installation & Compatibility

Installation of the Fuelab EFI Adjustable Fuel Pressure Regulator is straightforward for those familiar with fuel system plumbing and EFI components. The universal fitment and included mounting hardware simplify integration into most EFI setups, including Subaru WRX, STI, BRZ, and other platforms. While the regulator is designed for bolt-on installation, professional installation is recommended to ensure proper fuel line routing and pressure calibration. No special tools beyond standard fuel system tools are required, but care should be taken to avoid leaks and ensure secure fittings. Tuning is recommended after installation to optimize fuel pressure settings for your specific engine and modifications.

• Professional Installation: Recommended
• Modifications Required: None, compatible with standard EFI plumbing
• Verify Compatibility: Confirm fitment for your specific vehicle and fuel system setup

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