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

Fuelab Adjustable Mini EFI Fuel Pressure Regulator 25-90 PSI 2-6AN Inlets 1-6AN Return Gold | 25-90 PSI Adjustable Range | EFI Fuel Pressure Regulator

Overview

The Fuelab Adjustable Mini EFI Fuel Pressure Regulator is a precision-engineered component designed to provide reliable and accurate fuel pressure control for a wide range of fuel-injected applications. With an adjustable pressure range of 25 to 90 PSI, this regulator is ideal for enthusiasts and tuners who demand consistent fuel delivery under varying operating conditions. Its compact size and lightweight design make it especially suitable for installations where space is limited, without compromising on performance or durability.

Crafted from billet aluminum and finished with a military-grade anodize coating (MIL-A-8625, Type II), this regulator exemplifies Fuelab’s commitment to quality and longevity. The fine thread pitch allows for precise pressure adjustments, ensuring that fuel pressure can be dialed in exactly to the needs of your Subaru’s EFI system. The inclusion of multiple inlet ports and a return port, along with a versatile mounting bracket and stainless steel hardware, reflects thoughtful engineering aimed at ease of installation and adaptability.

For Subaru owners, maintaining stable fuel pressure is critical to achieving optimal engine performance and tuning potential. Whether running gasoline, diesel, methanol, or ethanol fuels, this regulator supports a broad spectrum of fuel types, making it a versatile choice for WRX, STI, BRZ, and other Subaru platforms. Its compact footprint and robust construction help ensure consistent fuel delivery, which is essential for maximizing power output and maintaining engine reliability during spirited driving or track use.

Features & Specifications

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

• Brand: Fuelab
• Product: Adjustable Mini EFI Fuel Pressure Regulator 25-90 PSI 2-6AN Inlets 1-6AN Return Gold
• Part Number: 53501-5
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Gold Anodized (MIL-A-8625, Type II)
• Construction: CNC Machined
• Origin: Not specified
• Pressure Range: 25-90 PSI (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
• Weight: Approximately 50% lighter than Fuelab 515/525 Series

Key Benefits

• Performance: Precise fuel pressure adjustment ensures consistent fuel delivery for optimized engine tuning and power output on Subaru EFI platforms.
• Durability: Billet aluminum construction with military-grade anodizing provides corrosion resistance and long-lasting reliability.
• Fitment: Compact size and versatile mounting bracket allow installation in tight engine bays common to Subaru WRX, STI, and BRZ models.
• Compatibility: Supports multiple fuel types including gasoline, diesel, methanol, and ethanol, accommodating various Subaru fuel setups.
• Adjustability: Fine thread pitch enables precise pressure tuning to match specific engine and fuel system requirements.
• Weight Savings: Weighs 50% less than comparable Fuelab regulators, reducing overall system weight and improving packaging.

What's Included

• 1× Fuelab Adjustable Mini EFI Fuel Pressure Regulator 25-90 PSI 2-6AN Inlets 1-6AN Return Gold
• Versatile mounting bracket
• Stainless steel mounting hardware
• 1/8 inch NPT gauge port plug
• Installation instructions

Installation & Compatibility

Installation of the Fuelab Adjustable Mini EFI Fuel Pressure Regulator is straightforward for enthusiasts with basic mechanical skills, especially given its compact size and included mounting hardware. No specialized tools beyond standard hand tools are typically required. The regulator’s universal fitment makes it compatible with a wide range of Subaru models and other EFI-equipped vehicles, but it is important to verify hose and fitting sizes before installation. Adjusting fuel pressure should be done carefully, ideally with a fuel pressure gauge connected to the provided port, to ensure proper tuning and avoid engine damage.

• Professional Installation: Recommended for first-time installers or those unfamiliar with fuel system components
• Modifications Required: None; designed for direct integration with -6AN fuel lines
• Verify Compatibility: Confirm fitment and fuel line sizes for your specific Subaru model and fuel system setup

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