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

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

Overview

The Fuelab EFI Adjustable Fuel Pressure Regulator is a precision-engineered component designed to provide reliable and consistent fuel pressure control for electronic fuel injection (EFI) systems. With an adjustable range of 25 to 90 psi, this regulator is ideal for Subaru enthusiasts and tuners who require fine-tuned fuel delivery for optimal engine performance. Its universal fitment makes it compatible with a wide range of platforms, including WRX, STI, BRZ, and more, supporting gasoline, diesel, methanol, and ethanol fuels.

Crafted from billet aluminum and finished with a military-grade anodize coating per MIL-A-8625 Type II standards, this regulator combines durability with corrosion resistance. The fine thread pitch adjustment mechanism allows for precise fuel pressure tuning, essential for maximizing power and efficiency in modified Subaru engines. The inclusion of multiple -6AN ports and a versatile mounting bracket ensures straightforward installation and integration into various fuel systems.

For Subaru owners focused on performance upgrades, maintaining stable fuel pressure is critical to supporting higher boost levels and advanced tuning strategies. This regulator’s wide pressure range and compatibility with multiple fuel types offer flexibility for both street and track applications. Its robust construction and precise adjustability help ensure consistent fuel delivery, reducing the risk of lean conditions and supporting reliable power gains.

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 red 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 Red
• Part Number: 51502-2
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Red Anodized (MIL-A-8625 Type II)
• Construction: CNC Machined
• Origin: Not specified
• Pressure Range: 25-90 psi adjustable
• Ports: Two -6AN inlet ports, one -6AN return port
• Fuel Compatibility: Gasoline, diesel, methanol, ethanol
• Gauge Port: 1/8 inch NPT with plug for external pressure gauge
• Pressure Reference Port: 1/8 inch NPT with barbed fitting
• Mounting: Versatile bracket with stainless steel hardware
• Warranty: Limited lifetime warranty

Key Benefits

• Performance: Precise fuel pressure adjustment supports optimal tuning and power delivery for Subaru EFI systems.
• Durability: Billet aluminum construction with military-grade anodizing ensures long-lasting corrosion resistance.
• Fitment: Universal design with multiple -6AN ports and versatile mounting bracket fits a wide range of Subaru platforms and fuel setups.
• Adjustability: Fine thread pitch allows for accurate pressure tuning between 25 and 90 psi to match specific engine requirements.
• Fuel Compatibility: Supports gasoline, diesel, methanol, and ethanol fuels, providing flexibility for various Subaru builds.
• Monitoring: Integrated gauge and pressure reference ports enable easy installation of external pressure gauges for real-time fuel system monitoring.

What's Included

• 1× Fuelab EFI Adjustable Fuel Pressure Regulator 25-90 psi Red
• 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 those familiar with fuel system components, requiring basic hand tools and standard fuel line fittings. The regulator’s universal design and included mounting bracket allow flexible placement in the engine bay. For optimal performance, it is recommended to install an external fuel pressure gauge using the provided ports to monitor and fine-tune fuel pressure accurately. Professional installation is advised if you are unfamiliar with EFI fuel systems or fuel line modifications.

• Professional Installation: Recommended for best results
• Modifications Required: None beyond standard fuel line connections
• Verify Compatibility: Confirm fitment for your specific Subaru platform and fuel system setup

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