Fuelab Universal EFI Adjustable Fuel Pressure Regulator In-Line 25-90 psi 1 -6AN Inlet 1 -6AN Return Black

Fuelab EFI Adjustable Fuel Pressure Regulator In-Line 6AN Black | 25-90 PSID Adjustable Range | Fuel Pressure Regulator

Overview

The Fuelab EFI Adjustable Fuel Pressure Regulator is a precision-engineered component designed to provide accurate and reliable fuel pressure control for a wide range of fuel-injected applications. Featuring a versatile in-line design with -6AN inlet and return ports, this regulator is ideal for enthusiasts and tuners seeking fine-tuned fuel delivery in tight engine bay spaces. Compatible with gasoline, diesel, methanol, and ethanol fuels, it supports diverse setups from street builds to high-performance race cars.

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. Its fine thread pitch allows for precise pressure adjustments, ensuring consistent fuel pressure within the 25-90 PSID range. The inclusion of a versatile mounting bracket and stainless steel hardware simplifies installation, while the integrated 1/8 inch NPT ports accommodate external pressure gauges and reference lines for enhanced monitoring and tuning accuracy.

For Subaru owners, especially those upgrading fuel systems on WRX, STI, or other turbocharged platforms, maintaining stable fuel pressure is critical for maximizing power and protecting engine components. This Fuelab regulator’s compact size and universal fitment make it a practical choice for custom fuel setups, delivering the control needed to optimize performance and reliability under demanding conditions.

Features & Specifications

This Fuelab EFI Adjustable Fuel Pressure Regulator is engineered for universal fitment and features -6AN inlet and return ports for streamlined fuel system integration. Constructed from billet aluminum with a military-grade anodized finish, it delivers precise fuel pressure control and durability for Subaru enthusiasts seeking reliable and adjustable fuel delivery.

• Brand: Fuelab
• Product: EFI Adjustable Fuel Pressure Regulator In-Line 6AN Black
• Part Number: 52501-1
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Black Anodized (MIL-A-8625 Type II)
• Construction: CNC Machined
• Origin: Not Specified
• Fuel Compatibility: Gasoline, Diesel, Methanol, Ethanol
• Pressure Range: 25-90 PSID Adjustable
• Inlet/Return Ports: Single -6AN Inlet / Single -6AN Return
• 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

• Precision Control: Fine thread pitch allows for accurate fuel pressure adjustments within a wide 25-90 PSID range, essential for tuning Subaru fuel systems.
• Durability: Billet aluminum construction with military-grade anodizing ensures long-lasting corrosion resistance and strength in harsh environments.
• Universal Fitment: Compact in-line design with -6AN ports fits a variety of fuel injection setups, including WRX and STI platforms with limited space.
• Fuel Compatibility: Supports multiple fuel types including gasoline, diesel, methanol, and ethanol, offering versatility for different Subaru builds.
• Easy Installation: Comes with a versatile mounting bracket and stainless steel hardware for secure and flexible mounting options.
• Enhanced Monitoring: Integrated 1/8 inch NPT ports allow connection of external gauges and pressure reference lines for precise fuel system diagnostics.

What's Included

• 1× Fuelab EFI Adjustable Fuel Pressure Regulator In-Line 6AN Black
• 1× Versatile Mounting Bracket
• Stainless Steel Mounting Hardware
• 1/8 inch NPT Plug for Gauge Port
• Installation Instructions

Installation & Compatibility

Installation of the Fuelab EFI Adjustable Fuel Pressure Regulator is straightforward for enthusiasts with basic mechanical skills, especially given its compact size and included mounting hardware. No special tools beyond standard hand tools are typically required. The regulator’s universal fitment suits a wide range of fuel injection systems, but verifying compatibility with your specific Subaru model and fuel setup is recommended. For optimal performance, fine-tuning fuel pressure should be performed with proper gauges and potentially professional tuning support to ensure safe and efficient engine operation.

• Professional Installation: Recommended for precise tuning and fuel system integration
• Modifications Required: None for most applications; verify hose and fitting compatibility
• Verify Compatibility: Confirm fitment for your specific Subaru year, model, and fuel system configuration

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