The Fuelab 59501-1 Ultralight EFI Adjustable Fuel Pressure Regulator is engineered for high-performance fuel systems where precise pressure control and weight reduction are essential. Designed for universal applications, this regulator supports a broad adjustment range of 25-90 PSI, making it ideal for everything from street performance to forced-induction racing setups.

Built with a compact, lightweight housing, the unit features dual -8AN inlet ports to allow for versatile plumbing options—such as feeding separate fuel rails—while the single -6AN return port ensures efficient fuel bypass without pressure spikes. This regulator is a direct solution for maintaining stable rail pressure in high-demand EFI environments.

• Manufacturer Part Number: 59501-1
• Adjustment Range: 25-90 PSI
• Inlet Ports: (2) -8AN
• Return Port: (1) -6AN
• Application: Universal EFI systems
• Design: Ultralight compact housing for significant weight savings

This universal EFI adjustable fuel pressure regulator is engineered for high-flow applications where precise fuel management is critical. The Fuelab 565 Series features a specialized Max Flow Bypass design to handle high-volume fuel pumps without creating pressure creep at idle or low-load conditions.

• Manufacturer Part Number: 56504-1
• Adjustment Range: 40-80 PSI
• Inlet Ports: Dual (2) -10AN
• Return Port: Single (1) -10AN
• Housing: Black anodized finish
• Application: Universal EFI systems

Built with large internal passages and a high-capacity bypass valve, this regulator ensures stable fuel pressure even in high-horsepower configurations. The 56504-1 is designed to integrate seamlessly into fuel systems requiring -10AN plumbing for maximum throughput and consistent delivery.

The Fuelab 545 Series EFI Adjustable Mini Fuel Pressure Regulator (FPR) provides precise fuel pressure management for high-performance electronic fuel injection systems. Designed for universal EFI applications, this compact regulator solves space constraints in tight engine bays without sacrificing the flow capacity needed for demanding fuel systems.

Constructed with a black anodized finish for superior corrosion resistance, the 54501-1 features an in-line configuration that simplifies plumbing. It utilizes a precision adjustment screw to set fuel pressure between 25 and 90 PSI, ensuring your fuel rail maintains the exact pressure required for optimal injector characterization and tuning.

• Manufacturer Part Number: 54501-1
• Adjustment Range: 25-90 PSI
• Inlet Port: (1) -6AN
• Return Port: (1) -6AN
• Configuration: In-line mini body
• Application: Universal EFI systems
• Finish: Black anodized

The Fuelab 535 Series EFI Adjustable Mini Fuel Pressure Regulator (MPN 53501-5) provides precise fuel pressure control in a compact, space-saving design. Engineered for high-performance electronic fuel injection (EFI) systems, this regulator offers a versatile adjustment range of 25 to 90 PSI to meet specific fueling requirements.

This unit features a durable gold finish and is configured with two -6AN inlet ports and a single -6AN return port. Its "Mini" form factor is specifically designed for installations where engine bay space is at a premium, allowing for flexible mounting without compromising on flow capacity or pressure stability.

• Manufacturer Part Number: 53501-5
• Pressure Adjustment Range: 25-90 PSI
• Inlet Ports: (2) -6AN
• Return Port: (1) -6AN
• Series: 535 Series Mini
• Finish: Gold
• Application: Universal EFI

The Fuelab 535 Series Mini Fuel Pressure Regulator (MPN 53501-4) delivers high-performance fuel management in a compact, lightweight housing designed for space-constrained engine bays. Engineered for electronic fuel injection (EFI) systems, this regulator features a fine-thread pitch for precise pressure adjustments across a 25-90 PSI range.

Constructed for durability and versatility, the 53501-4 is equipped with two -6AN inlets and one -6AN return port, allowing for flexible plumbing configurations. The purple anodized finish provides essential corrosion resistance for various fuel types, including gasoline, diesel, methanol, and ethanol blends.

• Manufacturer Part Number: 53501-4
• Adjustment Range: 25-90 PSI
• Inlet Ports: (2) -6AN
• Return Port: (1) -6AN
• Compatible with EFI systems
• Corrosion-resistant purple anodized finish
• Compact design for weight savings and easy mounting

The Fuelab 53501-3 is a compact, high-performance 535 Series EFI Adjustable Mini Fuel Pressure Regulator designed for precise pressure control in space-limited engine bays. This universal regulator provides a steady fuel supply for EFI systems, featuring a wide adjustment range of 25 to 90 PSI to suit various performance requirements.

• Precision Control: Adjustable range from 25-90 PSI to meet specific fuel system demands.
• Port Configuration: Equipped with dual (2) -6AN inlet ports and a single (1) -6AN return port.
• Durable Construction: Finished in blue anodizing for superior corrosion resistance and a clean look.
• Compact Profile: Mini design allows for easier installation in tight compartments without sacrificing flow capacity.
• Manufacturer Part Number: 53501-3

The Fuelab 53501-2 provides precise fuel pressure control in a compact package, specifically engineered for EFI systems where engine bay space is at a premium. As part of the 535 Series, this Mini Fuel Pressure Regulator (FPR) supports an adjustable range from 25 to 90 PSI, allowing for fine-tuned performance across various fuel demands. Its high-flow bypass design ensures stable pressure and consistent delivery to your fuel rail.

• Adjustment Range: User-adjustable from 25 to 90 PSI for versatile tuning.
• Port Configuration: Features dual -6AN inlets and a single -6AN return port for streamlined plumbing.
• Compact Footprint: Mini design allows for easier mounting in crowded engine bays without sacrificing flow capacity.
• Durable Construction: Finished in red anodizing for corrosion resistance and fuel compatibility.
• Manufacturer Part Number: 53501-2

The Fuelab 535 Series EFI Mini Fuel Pressure Regulator provides precise fuel control in a compact, bypass-style design. Engineered for high-performance EFI systems where space is limited, this regulator offers the same high-flow capacity as larger models but in a smaller, lighter package. It features a versatile (3) -6AN ORB port configuration—consisting of two inlets and one return—allowing for flexible plumbing in various fuel rail layouts.

• Adjustable Range: 25-90 PSI for fine-tuning fuel delivery
• Ports: (3) -6AN ORB ports (2 Inlets, 1 Return)
• Included Accessory: Comes with a matching fuel pressure gauge kit
• Design: Compact mini-series bypass regulator with 1/8" NPT gauge port
• Compatibility: Suitable for gasoline, diesel, methanol, and ethanol fuels
• Manufacturer Part Number: 53501-1K

The Fuelab 535 Series EFI Adjustable Mini Fuel Pressure Regulator provides precision fuel pressure management in a compact, space-saving footprint. Engineered for high-performance EFI systems, this regulator allows for fine-tuned adjustments between 25 and 90 PSI to meet specific engine demands. Its multi-port configuration, featuring two -6AN inlets and a single -6AN return, offers plumbing flexibility for complex fuel rail setups while maintaining stable, consistent pressure.

• Manufacturer Part Number: 53501-1
• Product Series: 535 Mini FPR
• Pressure Adjustment Range: 25-90 PSI
• Inlet Port Size: (2) -6AN
• Return Port Size: (1) -6AN
• Color/Finish: Black
• Application: EFI Systems

The Fuelab 52501-1 525 Series EFI Adjustable Fuel Pressure Regulator provides precise fuel control for high-performance electronic fuel injection systems. Designed for in-line installation, this bypass-style regulator manages pressures between 25 and 90 PSI, ensuring your fuel rail maintains the exact pressure required for your engine's demand.

Each regulator is machined from billet aluminum and finished in a durable black anodize for corrosion resistance. The 525 Series utilizes a fine-thread adjustment screw for tactile, accurate pressure settings and includes a dedicated 1/8" NPT port for mounting a fuel pressure gauge or sensor. Its versatile design is compatible with gasoline, diesel, methanol, and ethanol fuels.

• Adjustment Range: 25-90 PSI
• Inlet Port: (1) -6AN
• Return Port: (1) -6AN
• Gauge Port: 1/8" NPT with plug
• Material: Billet aluminum with black anodized finish
• Configuration: In-line bypass regulator
• Manufacturer Part Number: 52501-1

The Fuelab 515 Series EFI Adjustable Fuel Pressure Regulator is designed for high-performance fuel systems requiring precise pressure control and high flow capacity. This bypass-style regulator features a large seat assembly to handle high-volume fuel pumps while maintaining stable rail pressure from 25 to 90 PSI.

Constructed from billet aluminum with a durable black anodized finish, this unit is built for demanding e-commerce and motorsport applications. It includes two -10AN inlet ports and a single -6AN return port, providing versatile plumbing options for dual-rail or high-flow single-rail configurations. A dedicated 1/8" NPT port is integrated for a fuel pressure gauge or pressure sensor tap.

• Brand: Fuelab
• Series: 515 Series
• MPN: 51505-1-L-E
• Adjustment Range: 25-90 PSI
• Seat Size: Large seat for high flow
• Inlet Ports: (2) -10AN
• Return Port: (1) -6AN
• Material: Billet Aluminum
• Finish: Black Anodized
• Gauge Port: 1/8" NPT

The Fuelab 515 Series EFI Adjustable Fuel Pressure Regulator provides precise fuel pressure management for high-performance EFI systems. This universal regulator is designed to maintain consistent pressure across its operating range, ensuring your fuel system meets the demands of your engine.

Featuring a durable purple anodized finish, the 51502-4 is built for reliability and ease of installation. It utilizes a versatile port configuration with two -6AN inlets and a single -6AN return port, making it compatible with a wide variety of fuel rail and plumbing setups. The internal valve design allows for fine-tuning fuel pressure between 25 and 90 PSI.

• Manufacturer Part Number: 51502-4
• Series: 515 Series
• Pressure Range: 25-90 PSI
• Inlet Ports: (2) -6AN
• Return Port: (1) -6AN
• Application: Universal EFI systems
• Color: Purple

The Fuelab 51502-3 is a high-performance 515 Series EFI adjustable fuel pressure regulator designed for universal fuel injection applications. This bypass-style regulator provides precise pressure control and maintains consistent fuel delivery to the rail, even during high-flow demand. Its versatile design features dual inlets and a single return port, allowing for a variety of plumbing configurations in custom fuel systems.

• Manufacturer Part Number: 51502-3
• Series: Fuelab 515 Series
• Adjustment Range: 25-90 PSI
• Inlet Ports: (2) -6AN
• Return Port: (1) -6AN
• Finish: Blue Anodized
• Application: Universal EFI systems
• Compatible with gasoline, diesel, methanol, and ethanol fuels

The Fuelab 51502-2 is a versatile, high-performance fuel pressure regulator designed for precision EFI tuning. This bypass-style regulator provides stable fuel pressure between 25 and 90 PSI, handling high-flow fuel systems without pressure creep. Its dual-inlet design allows for flexible plumbing configurations, whether you are running a single-rail or dual-rail setup.

• Adjustment Range: 25-90 PSI for versatile tuning across various EFI platforms
• Inlet Ports: Two -6AN inlets for high-flow fuel delivery
• Return Port: One -6AN return port to manage bypass flow efficiently
• Construction: Billet aluminum housing with a durable red anodized finish
• Pressure Reference: 1:1 boost reference ratio via 1/8" NPT port
• Monitoring: 1/8" NPT gauge port for direct pressure readings
• Compatibility: Suitable for gasoline, diesel, methanol, and ethanol fuels
• Manufacturer Part Number: 51502-2

The Fuelab 515 Series EFI Adjustable Fuel Pressure Regulator (MPN: 51502-1) provides precise fuel pressure management for high-performance electronic fuel injection systems. Designed for universal application, this regulator is engineered to maintain stable rail pressure across a wide range of fuel flow requirements.

• Pressure Range: 25-90 PSI (adjustable)
• Inlet Ports: Two (2) -6AN inlets for flexible plumbing configurations
• Return Port: One (1) -6AN return port
• Compatibility: Universal EFI systems
• Finish: Durable black anodized housing
• Manufacturer Part Number: 51502-1

Built with a compact design to fit tight engine bays, the 51502-1 allows tuners to accurately dial in fuel pressure to match specific injector sizing and engine demands. Its high-flow design ensures minimal pressure drop and consistent performance under load.

The Fuelab 51501-1 515 Series EFI Adjustable Fuel Pressure Regulator is engineered for high-performance fuel systems that demand precise pressure management and high flow capacity. This universal regulator provides a wide adjustment range of 25-90 PSI, making it suitable for a broad array of fuel-injected applications, from street performance to competitive racing.

Built to handle significant volume, the 51501-1 features dual -10AN inlet ports to accommodate large-diameter fuel lines or dual-pump setups, paired with a -6AN return port to maintain stable rail pressure. The unit is finished in a durable black anodized coating for superior corrosion resistance and a professional aesthetic in the engine compartment.

• Manufacturer Part Number: 51501-1
• Pressure Adjustment Range: 25-90 PSI
• Inlet Ports: Dual (2) -10AN
• Return Port: Single (1) -6AN
• System Compatibility: Universal EFI
• Finish: Black Anodized

The DeatschWerks 10 Micron Fuel Filter Regulator provides a compact, dual-purpose solution for fuel system management, combining high-efficiency filtration with integrated pressure regulation. Built with a durable stainless steel body and finished in black, this unit is designed to protect your fuel injectors from fine particulates while maintaining consistent rail pressure.

This filter-regulator is engineered for straightforward plumbing, featuring 3/8-inch barb fittings that allow for secure connection to standard fuel lines. The internal 10-micron element serves as a critical safeguard for the fuel system, capturing debris that could otherwise lead to injector clogging or pump damage.

• Manufacturer Part Number: 8-FFR-38
• Filtration Rating: 10 Micron
• Inlet/Outlet Size: 3/8-inch Barb fittings
• Body Material: Stainless Steel
• Finish: Black
• Integrated regulator ensures stable fuel delivery

The DeatschWerks DWFFR-X is a precision-engineered 110mm billet fuel filter regulator designed to streamline high-performance fuel systems. By integrating a fuel pressure regulator and a high-efficiency 10-micron filter into a single compact housing, this unit simplifies plumbing and minimizes potential leak points. Constructed from CNC-machined billet aluminum, it is built to withstand the demands of high-pressure applications while providing critical protection for your fuel injectors against fine contaminants.

• Integrated fuel pressure regulator and filtration in a single unit
• 110mm overall housing length for easy packaging
• 10-micron filter element for superior debris protection
• Durable billet aluminum construction
• Manufacturer Part Number: 8-FFR-110-010K

Fits select 1997-2004 Chevrolet S10, Silverado 1500/2500/3500, and GMC Sierra 1500/2500/3500.

The DeatschWerks Direct Replacement Performance Fuel Pressure Regulator (6-M02-4) is engineered to replace the restrictive factory unit with a high-flow alternative that supports increased fuel demands. This regulator is designed for a precise fit within the factory fuel rail, providing a true bolt-in solution that maintains stable rail pressure for performance-modified engines without requiring custom plumbing.

• High-flow design optimized for performance fueling requirements
• Direct replacement for the original equipment (OE) regulator
• Ensures consistent fuel rail pressure and improved delivery
• Maintains factory mounting and connection points for a clean installation
• Manufacturer Part Number: 6-M02-4

Fits select 2004-2020 Acura ILX, TL, TLX, TSX, and Honda Civic models. This DeatschWerks performance in-tank fuel pressure regulator is engineered for high-demand fuel systems that require a higher base pressure than the factory unit provides.

A critical upgrade for modified engines, this regulator replaces the standard OE component within the fuel tank assembly. It provides a constant 4.5 BAR (65.2 psi) pressure, ensuring your injectors have the consistent fuel rail pressure needed for optimal atomization and tuning stability in performance applications.

• Fixed Pressure: 4.5 BAR
• Installation Location: In-Tank
• Direct replacement for OE fuel regulator
• Manufacturer Part Number: 6-45-M53

Vehicle Fitment:

• 2013-2015 Acura ILX
• 2004-2008 Acura TL / TL Type-S
• 2015-2020 Acura TLX
• 2009-2014 Acura TSX
• 2006-2020 Honda Civic (DX, EX, GX, HF, Hybrid, LX, Si, Sport, Type R)

Fits select 2006-2023 Mazda 3, 6, and MX-5 Miata models.

Ensure your fuel system can keep up with the demands of performance tuning with the DeatschWerks Mazda Performance In-Tank Fuel Pressure Regulator. Designed as a direct drop-in replacement for the factory unit, this regulator maintains a consistent 4.5 BAR (approx. 65 PSI) fuel pressure, providing the stability needed for high-flow fuel injectors and modified engine configurations. By increasing base pressure, this regulator allows for improved fuel atomization and greater overall flow capacity without the need for complex external plumbing.

• Fixed 4.5 BAR pressure rating specifically calibrated for Mazda performance applications
• Designed for seamless in-tank installation within the factory fuel pump housing
• Ensures consistent fuel rail pressure under high-load conditions
• Manufacturer Part Number: 6-45-M52
• Ideal for turbocharged or high-compression N/A builds requiring precise fueling

Fits select 2008-2023 Scion FR-S, Subaru BRZ and WRX, and Toyota 86 and Tundra.

The DeatschWerks 4.5 BAR Performance In-Tank Fuel Pressure Regulator is designed to provide consistent, high-pressure fuel delivery for modified Toyota, Subaru, and Scion platforms. This fixed-pressure regulator replaces the factory unit within the fuel tank assembly to maintain a stable 4.5 BAR (approximately 65 PSI) output. Increasing base fuel pressure is a common requirement when tuning for higher output or compensating for increased flow demands in performance fuel systems.

• Manufacturer Part Number: 6-45-M51
• Pressure Rating: 4.5 BAR (Fixed)
• Installation: In-tank, direct-fit replacement
• Compatible with factory fuel pump housings
• Precision-engineered for stable pressure regulation under load

The DeatschWerks DWR2000 (MPN 6-2000-FRT) is a high-capacity, adjustable fuel pressure regulator engineered to provide precise pressure control for fuel systems supporting up to 2,000 horsepower. Constructed from CNC-machined billet aluminum with a titanium anodized finish, this regulator is designed to withstand high-flow demands and harsh fuel environments.

• Capable of supporting fuel systems up to 2,000 HP
• Two -8 AN ORB inlet ports and one -8 AN ORB return port for maximum flow
• Integrated 1/8" NPT gauge port for easy pressure monitoring
• Large 45mm fiber-reinforced Nitrile diaphragm ensures consistent pressure across the RPM range
• Precision ball-bearing adjustment mechanism for smooth, accurate tuning
• Compatible with ethanol (E85) and gasoline fuels
• Includes stainless steel mounting bracket and hardware for a secure installation

The DeatschWerks DWR2000 Adjustable Fuel Pressure Regulator (AFPR) provides the precision fuel management required for high-horsepower EFI systems. Engineered for universal fitment, this regulator ensures stable rail pressure even under extreme demand, making it a critical upgrade for performance builds.

Constructed for durability and consistent performance, the DWR2000 features a corrosion-resistant black anodized finish and is compatible with multiple fuel types. This comprehensive kit includes a mechanical pressure gauge for real-time monitoring and high-flow ORB fittings to streamline your plumbing installation.

• Manufacturer Part Number: 6-2000-FRB-108
• Feed Ports: (2) 10AN ORB fittings included
• Return Port: (1) 8AN ORB fitting included
• Includes: Mechanical fuel pressure gauge
• Finish: Anodized Black
• Fitment: Universal application for EFI systems

The DeatschWerks DWR2000 Adjustable Fuel Pressure Regulator is a high-performance fuel management solution designed for sport compact, modern muscle, and European applications. Engineered at the DeatschWerks facility in Oklahoma City, this regulator provides the precise pressure control required to support high-flow fuel systems and performance tuning.

• Model: DWR2000
• Function: Adjustable fuel pressure regulation for stable rail pressure
• Finish: Durable black coating
• Manufacturer Part Number: 6-2000-FRB
• Application Compatibility: Ideal for high-flow injectors and performance fuel pumps

Built as part of a comprehensive lineup of fuel system components, the DWR2000 ensures consistent delivery under varying engine loads. It is a vital component for enthusiasts and builders looking to optimize their fuel system architecture with a trusted name in aftermarket performance.

The DeatschWerks DWR1000C Adjustable Fuel Pressure Regulator kit provides precise fuel management for high-performance engines. This universal regulator is engineered to maintain stable fuel pressure even under high flow demands, ensuring consistent air-fuel ratios. The DWR1000C features a durable anodized black finish for superior corrosion resistance and compatibility with various fuel types.

This comprehensive kit includes a dedicated mechanical pressure gauge for real-time tuning and a set of ORB adapter fittings to simplify installation. It is configured to accommodate -8AN feed lines and a -6AN return line, making it a complete solution for custom fuel system plumbing.

• DWR1000C Adjustable Fuel Pressure Regulator
• Corrosion-resistant black anodized finish
• Includes mechanical fuel pressure gauge
• Includes (2) -8AN ORB to -8AN Flare feed fittings
• Includes (1) -6AN ORB to -6AN Flare return fitting
• Universal fitment for performance fuel systems
• Manufacturer Part Number: 6-1002-FRB-86

The DeatschWerks DWR1000C is a high-performance adjustable fuel pressure regulator designed for universal EFI applications requiring precise fuel delivery control. This complete kit provides everything needed to regulate and monitor fuel rail pressure, featuring a DWR1000C regulator, a mechanical pressure gauge, and three -6AN ORB fittings to simplify plumbing.

Engineered to handle high-flow fuel pumps, the DWR1000C maintains stable, repeatable pressure under varying engine loads. Its housing is CNC-machined from high-grade aluminum with an anodized black finish for superior corrosion resistance and compatibility with various fuel types, including E85. This regulator features two inlet ports and a single return port, allowing for flexible routing in both dead-head and return-style fuel systems.

• Manufacturer Part Number: 6-1002-FRB-66
• Includes (2) -6AN feed fittings and (1) -6AN return fitting
• Equipped with a mechanical 0-100 psi pressure gauge
• Durable anodized black finish for ethanol and methanol compatibility
• Large internal diaphragm for precise pressure tracking and stability
• Universal fitment for high-horsepower EFI systems

The DeatschWerks DWR1000c Adjustable Fuel Pressure Regulator provides precise fuel pressure management for high-performance universal applications. Engineered for reliability and consistent rail pressure, this regulator is a critical component for tuning fuel delivery in modified engines. The unit features a durable black anodized finish for superior corrosion resistance and a clean look in the engine bay.

• Manufacturer Part Number: 6-1002-FRB
• Dual -6AN inlets and a -6AN outlet for high-flow fuel systems
• Fully adjustable design to fine-tune fuel rail pressure
• Black anodized aluminum construction for long-lasting durability
• Universal fitment for various automotive fuel systems
• Includes multiple ports for versatile plumbing configurations

The DeatschWerks DWR1000iL is a high-performance in-line fuel pressure regulator designed for precise fuel management in high-horsepower applications. Engineered to handle the demands of upgraded fuel systems, this adjustable regulator ensures stable and consistent pressure across the entire RPM range, preventing lean or rich conditions during hard acceleration.

• Manufacturer Part Number: 6-1001-FRB
• Adjustable pressure design for fine-tuning fuel delivery
• In-line mounting configuration for flexible engine bay plumbing
• Anodized black finish for superior corrosion resistance and durability
• Designed and tested to meet high-flow fuel system requirements
• Compatible with sport compact, muscle car, and Euro applications

The DeatschWerks DWR1000 (MPN 6-1000-FRT) is a high-performance adjustable fuel pressure regulator designed to provide precise fuel management for sport compact, modern muscle, and European applications. Engineered for systems requiring consistent rail pressure, this regulator allows for fine-tuned adjustments to support various fueling demands and high-flow fuel pump configurations.

• Adjustable design for precise fuel rail pressure control
• Durable Titanium finish for corrosion resistance and a professional engine bay aesthetic
• Engineered for high-flow performance fuel systems
• Compatible with various fuel types and specialty plumbing
• Manufactured by DeatschWerks in a dedicated 36,000sf facility
• Manufacturer Part Number: 6-1000-FRT