Fuelab Universal Ultralight EFI Adjustable Fuel Pressure Regulator 25-90 psi 2 -8AN Inlets 1 -6AN Return

Fuelab Ultralight EFI Adjustable Fuel Pressure Regulator 25-90 psi Black | 8AN Inlets | Adjustable Fuel Pressure Regulator

Overview

The Fuelab Ultralight EFI Adjustable Fuel Pressure Regulator is a precision-engineered component designed to provide consistent and accurate fuel pressure control for EFI systems. Ideal for Subaru enthusiasts upgrading their fuel delivery or building high-performance setups, this regulator supports a wide pressure range from 25 to 90 psi, accommodating various fuel types including gasoline, diesel, methanol, and ethanol. Its universal fitment makes it a versatile choice for WRX, STI, BRZ, and other Subaru platforms requiring reliable fuel pressure management.

Built with a focus on weight savings and durability, the Ultralight regulator weighs 30% less than Fuelab’s 515/525 series, thanks to its billet aluminum construction and anodized finish meeting military MIL-A-8625, Type II standards. The design incorporates dual -8AN inlet ports and a -6AN return port, allowing flexible plumbing configurations. Fine thread pitch adjustment ensures precise tuning of fuel pressure, critical for maximizing engine performance and reliability.

For Subaru owners, maintaining stable fuel pressure is essential to supporting power upgrades and tuning efforts. This regulator’s wide adjustment range and compatibility with multiple fuels provide the adaptability needed for both street and track applications. The inclusion of gauge and pressure reference ports facilitates easy monitoring and integration with aftermarket fuel system components, making it a practical upgrade for enthusiasts focused on consistent fueling and engine safety.

Features & Specifications

This Fuelab Ultralight EFI Adjustable Fuel Pressure Regulator is engineered for universal fitment and features dual -8AN inlet ports with a -6AN return port. Constructed from billet aluminum with a military-grade anodized finish, it delivers lightweight durability and precise fuel pressure control for Subaru enthusiasts seeking reliable and adjustable fuel management.

• Brand: Fuelab
• Product: Ultralight EFI Adjustable Fuel Pressure Regulator 25-90 psi Black
• Part Number: 59501-1
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Black Anodized (MIL-A-8625, Type II)
• Construction: CNC Machined
• Origin: Not specified
• Inlet Ports: Two -8AN
• Return Port: One -6AN
• Fuel Compatibility: Gasoline, Diesel, Methanol, Ethanol
• Pressure Range: 25-90 psi (PSID)
• Adjustment: Fine thread pitch for precise pressure tuning
• Gauge Port: 1/8 inch NPT with plug
• Pressure Reference Port: 1/16 inch NPT with barbed fitting
• Mounting: Versatile bracket with stainless steel hardware
• Warranty: Limited lifetime warranty

Key Benefits

• Performance: Precise fuel pressure control supports consistent fueling for power upgrades and tuning stability on Subaru platforms.
• Durability: Billet aluminum construction with military-grade anodizing ensures long-lasting corrosion resistance and strength.
• Weight Savings: Weighs 30% less than previous Fuelab models, reducing overall system weight without sacrificing reliability.
• Compatibility: Supports multiple fuel types and universal fitment, making it adaptable for a wide range of Subaru EFI applications.
• Adjustability: Fine thread pitch adjustment allows for precise fuel pressure tuning to match specific engine and fuel system requirements.
• Ease of Monitoring: Integrated gauge and pressure reference ports facilitate easy installation of external pressure gauges for real-time fuel system monitoring.

What's Included

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

Installation & Compatibility

Installation of the Fuelab Ultralight EFI Adjustable Fuel Pressure Regulator is straightforward for enthusiasts with basic mechanical skills and common hand tools. The regulator’s universal fitment and included mounting bracket allow flexible placement in most engine bays. No special tools are required beyond standard wrenches and fittings for AN lines. Precise fuel pressure adjustment requires careful tuning, so it is recommended to monitor fuel pressure with a gauge during setup. This regulator is compatible with gasoline, diesel, methanol, and ethanol fuels, but always verify compatibility with your specific Subaru model and fuel system configuration before installation.

• Professional Installation: Recommended for first-time installers or complex fuel system setups
• Modifications Required: None; designed for universal fitment
• Verify Compatibility: Confirm fitment for your specific Subaru platform and fuel system requirements

Shop with confidence at Subimods—your Subaru parts specialists.