Fits select 2002-2011 Acura RSX, TSX, and Honda Civic Si and Element models. The Skunk2 Composite High Volume Fuel Rail is engineered for K-series engines to outperform traditional aluminum alternatives in thermal management and durability. Manufactured from a proprietary carbon-impregnated, aerospace thermo-polymer composite, this rail is 33% lighter and 60% stronger than aluminum while operating up to 100°F cooler. By insulating fuel from radiant and conductive engine bay heat, it maintains lower fuel temperatures for improved combustion efficiency.

• Supports fuel requirements up to 1,200 hp
• Large 0.625-inch internal bore for superior fuel injector pulsation dampening
• Proprietary composite material reduces heat transfer by up to 100°F compared to aluminum
• Radius-cut fuel injector outlets and smooth interior finish for optimized flow
• Integrated 1/8-inch NPT fuel pressure ports for gauges or nitrous feed
• Compatible with factory fuel systems and all fuel types, including alcohol/E85
• Manufacturer Part Number: 350-05-5010

The unique internal geometry, which eliminates the sharp angles found in drilled-aluminum rails, is only possible through Skunk2's specialized composite molding process. This design ensures consistent fuel delivery and pressure across all injectors even in high-demand racing applications.

Fits select 1990-2001 Acura Integra, 1999-2000 Honda Civic Si, and 1994-1997 Honda Civic del Sol VTEC (B-Series engines).

The Skunk2 Composite High Volume Fuel Rail is engineered for high-performance B-series builds, utilizing a proprietary carbon-impregnated, aerospace thermo-polymer composite. This advanced material is 33% lighter and 60% stronger than traditional aluminum rails. More importantly, it acts as a thermal barrier, operating up to 100°F cooler than aluminum to insulate fuel from radiant and conductive engine bay heat, resulting in a denser fuel charge and increased power.

Designed to eliminate the sharp internal angles found in extruded aluminum rails, this composite rail features a massive 0.625-inch internal bore for superior fuel injector pulsation dampening. The smooth interior finish and radius-cut injector outlets optimize flow characteristics. Whether you are running a stock fuel system or a high-horsepower build using alcohol-based fuels, this rail is capable of supporting up to 1,200 HP.

• Manufacturer Part Number: 350-05-5000
• Integrated -8 AN inlet/outlet for custom fuel line plumbing
• Large 0.625-in internal bore for high-volume delivery
• Dual 1/8-in NPT fuel pressure ports for gauges or nitrous feeds
• Includes provisions for OEM fuel pressure regulator
• Compatible with all fuel types including alcohol/E85
• Tested to support up to 1,200 HP

Fits 2011-2025 Ford Mustang GT (5.0L Coyote).

Engineered for high-output Ford 5.0L engines, these Radium Engineering fuel rails provide the increased bore capacity necessary for high-horsepower Coyote and Voodoo builds. Each rail is precision CNC-machined from aluminum and features large 8AN ORB ports to ensure consistent fuel delivery and reduced pressure drops. These rails are compatible with all Coyote variations, including Gen 1 and Gen 2 car and truck applications.

Please note that this set (MPN: 20-1433) includes the fuel rails and mounting hardware only. Plumbing components, such as fittings and a crossover hose, are required for installation and sold separately. For a complete solution, consider the Radium fuel rail plumbing kit (20-1433-PK) for a direct installation.

• Precision CNC-machined aluminum construction
• Internal bore diameter designed for high-flow applications
• Dual 8AN ORB (3/4-16 O-ring) ports on each rail
• Supports Gen 1 and Gen 2 Coyote engine variations
• Includes all necessary installation hardware
• Manufacturer Part Number: 20-1433

Fits select 2008-Up Subaru Impreza, WRX, and STI models equipped with EJ-series engines.

The Radium Engineering 20-0984 Parallel Fuel Rail Plumbing Kit is engineered to optimize fuel delivery by routing fuel to both rails simultaneously. This parallel dead-end configuration replaces the factory series routing, ensuring consistent fuel pressure and flow across all injectors to mitigate the risk of lean conditions during high-demand operation.

• Specifically designed for use with Radium Engineering fuel rails
• Configured for a parallel dead-end plumbing style
• Full compatibility with E85, gasoline, and alcohol-based fuels
• Engineered for EJ-series engine architectures
• Manufacturer Part Number: 20-0984

Note: This plumbing kit is designed to integrate with Radium Engineering fuel rails; it does not include a fuel filter.

Designed to complement Radium fuel rail installations, the Radium Engineering Series Fuel Rail Plumbing Kit (20-0978) provides a complete solution for routing fuel on Subaru EJ engines. This kit configures the rails in a series flow pattern and utilizes a unique direct-mount regulator for a compact, efficient engine bay setup.

Engineered for seamless integration, the kit includes all necessary adapter fittings and high-quality hoses required to interface directly with the factory fuel feed and return pipes. This eliminates the need for custom fabrication when upgrading the fuel delivery system. The entire assembly is fully E85 compatible, ensuring long-term reliability with high-ethanol fuel blends.

• Specifically engineered for Subaru EJ engine series plumbing configurations
• Includes all necessary adapter fittings and fuel lines
• Integrates with Radium direct-mount fuel pressure regulators
• Compatible with factory chassis feed and return hard lines
• E85 and alternative fuel safe construction
• Manufacturer Part Number: 20-0978

Fits 1998-2010 Lexus GS400, GS430, and SC430 models equipped with the 1UZ-FE VVT-i and 3UZ-FE engines.

Radium Engineering high-flow fuel rails are CNC machined for precision fitment and maximum flow. Each rail features three 8AN ORB (3/4-16 O-ring) ports, providing flexible plumbing options for custom fuel systems, regulators, or pulse dampers. These rails are designed as a direct bolt-on solution, mounting to the factory locations without requiring permanent vehicle modifications.

To ensure versatility, Radium includes a set of air-assist delete injector seats. These allow for the use of standard-fitment aftermarket fuel injectors alongside OEM-style injectors. The large internal bore helps dampen pressure pulses and supports high-horsepower builds where the factory rail capacity becomes a bottleneck.

• Manufacturer Part Number: 20-0963
• Material: CNC Machined Aluminum
• Port Size: Three 8AN ORB ports per rail
• Includes six air-assist delete injector seats
• Compatible with stock and aftermarket injectors
• Retains factory mounting points

The Radium Engineering Top Feed Conversion Fuel Rail (20-0957) is a high-performance solution for Nissan KA24DE engines, allowing for a transition from factory setups to modern top-feed injectors. CNC machined from billet aluminum and anodized for durability, this rail is fully compatible with all fuel types, including E85 and other alcohol-based fuels.

Designed to support high-horsepower builds, the rail features a large internal bore to minimize pressure drops and pulses. The versatile plumbing options include three 8AN ORB ports and a single 1/8" NPT port, ideal for integrating a fuel pressure gauge or sensor. This kit includes the necessary injector seats to facilitate a clean, bolt-on installation into the factory location.

• CNC machined construction with an E85-compatible anodized finish
• Three 8AN ORB ports and one 1/8" NPT port for flexible plumbing
• Includes injector seats for straightforward installation
• Designed specifically for Nissan KA24DE top-feed conversions
• Manufacturer Part Number: 20-0957

Designed for the Toyota 2GR-FE engine, the Radium Engineering Fuel Rail Plumbing Kit (20-0898-PK) provides a streamlined solution for connecting Radium aftermarket fuel rails to the vehicle's factory fuel lines. This kit simplifies fuel system upgrades by eliminating the need for custom hose fabrication or sourcing individual adapter fittings, ensuring a secure and leak-free connection to the OE fuel system.

• Specifically engineered for the Toyota 2GR-FE engine platform
• Directly adapts Radium fuel rails to factory (OEM) fuel lines
• Includes all necessary high-quality adapter fittings for a complete installation
• Maintains professional-grade fitment and fuel system integrity
• Manufacturer Part Number: 20-0898-PK

This Radium Engineering plumbing kit is specifically engineered to facilitate the installation of the 20-0889 fuel rail on Volkswagen and Audi EA888 engines. It provides the necessary hardware to create a secure, high-flow connection between the aftermarket port injection rail and the factory fuel feed line, eliminating the need for custom hose assembly or guesswork during the plumbing process.

• Designed exclusively for use with Radium Engineering fuel rail part number 20-0889
• Adapts the port injection fuel rail to the OEM factory fuel feed line
• Complete set of fittings for a streamlined, bolt-on installation
• Compatible with VW/Audi EA888 engine platforms
• Manufacturer Part Number: 20-0889-PK

This Radium Engineering fuel rail is engineered for Volkswagen and Audi vehicles equipped with the EA888 engine utilizing a port injection intake manifold. CNC machined from 6061 billet aluminum and finished with a durable anodized coating, this rail provides the increased fuel volume and flow capacity required for high-performance builds.

The rail features a large internal bore to dampen pressure pulses and is tapped at both ends for 8AN ORB (3/4-16 threaded) fittings, allowing for versatile plumbing configurations. It is specifically designed to accommodate the factory OEM fuel pressure sensor, maintaining critical data delivery to the ECU while upgrading the fuel delivery hardware.

• CNC machined 6061 billet aluminum construction
• Black anodized finish for fuel compatibility and corrosion resistance
• Two 8AN ORB ports for primary fuel feed and return
• Integrated port to retain the OEM fuel pressure sensor
• Designed for use with port injection-style intake manifolds
• Manufacturer Part Number: 20-0889

Fits 2002-2005 Volkswagen Golf GTI VR6 (3.2L).

This Radium Engineering high-flow fuel rail is engineered for the 24V 3.2L VR6 engine, providing the increased fuel volume required for high-horsepower applications. CNC machined from 6061-T6 aluminum and finished with a Type II black anodizing for corrosion resistance, this rail replaces the restrictive factory unit. It features a large internal bore to dampen fuel pressure pulses and ensure consistent delivery across all injectors. The rail is designed with 8AN ORB ports at both ends to accommodate custom plumbing and high-flow fittings.

• CNC machined 6061-T6 aluminum construction with black anodized finish
• Large 8AN ORB (3/4-16 female) inlet and outlet ports
• Direct bolt-on installation using included stainless steel mounting hardware
• Designed specifically for the 24-valve VR6 cylinder head
• Compatible with factory and aftermarket fuel injectors
• Manufacturer Part Number: 20-0879

Fits 1991-2003 Volkswagen Golf GTI (2.8L 12V VR6).

The Radium Engineering high-flow fuel rail is a performance-oriented solution designed to replace the restrictive factory fueling hardware on the Volkswagen 12V VR6 engine. Precision-engineered for high-horsepower builds, this rail features a large internal bore that maintains consistent fuel pressure across all six cylinders, which is critical for forced induction or high-output naturally aspirated applications.

• CNC-machined from 6061 aluminum for superior strength and weight reduction.
• Large internal bore supports high-volume fuel flow and dampens pressure pulses.
• Dual 8AN ORB (3/4-16 threaded) end ports for flexible plumbing options.
• Integrated 1/8-inch NPT port for fuel pressure gauges or sensors.
• Type II black anodized finish for long-lasting corrosion resistance and compatibility with all fuel types including E85.
• Includes stainless steel mounting hardware for a secure installation.
• Manufacturer Part Number: 20-0877.

Fits 1999-2005 Volkswagen Golf (1.8T).

The Radium Engineering fuel rail for the VW/Audi 1.8T 20-valve engine is engineered to replace the restrictive factory unit with a high-flow alternative. CNC machined from solid aluminum, this rail is designed to meet the fueling demands of high-performance builds. It features large 8AN ORB ports, providing the internal volume and plumbing flexibility required for custom fuel systems and aftermarket pressure regulators.

• Precision CNC machined aluminum construction
• Large 8AN ORB ports for maximum flow and plumbing versatility
• Designed specifically for the 1.8T 20V engine platform
• Compatible with factory and aftermarket fuel injectors
• Manufacturer Part Number: 20-0872

Designed for high-performance applications, the Radium Engineering high-flow fuel rail (MPN 20-0870) provides the volume and flexibility required for modified Honda F-Series and H-Series FWD engines. This rail features a large internal bore to dampen fuel pressure pulses, ensuring consistent delivery to all cylinders even in high-horsepower builds.

Constructed from CNC machined aluminum with a durable black anodized finish, this fuel rail is built to withstand the rigors of performance driving. It is a direct bolt-on solution that maintains compatibility with both factory and aftermarket fuel injectors. The rail features 8AN ORB (3/4-16 O-ring) ports on each end, allowing for various custom plumbing options for both return and returnless fuel systems.

• Direct fit for Honda F-Series and H-Series FWD engines
• Precision CNC machined aluminum construction
• Hard-wearing black anodized finish for corrosion resistance
• Large internal bore for improved fuel pressure stability
• (2) 8AN ORB ports for versatile plumbing configurations
• Compatible with OEM and aftermarket fuel injectors
• Manufacturer Part Number: 20-0870

The Radium Engineering Fuel Rail Plumbing Kit (20-0866-PK) is a comprehensive solution designed to integrate seamlessly with Radium fuel rails (part number 20-0866) on the Audi R8 and Lamborghini Huracan. This kit provides the necessary high-flow connections to ensure your fuel system maintains consistent pressure and volume for high-performance applications.

Constructed with premium components, this plumbing kit simplifies the installation process by providing pre-sized hoses and vehicle-specific fittings. It replaces restrictive factory lines or provides a clean plumbing solution for custom fuel setups, ensuring a leak-free seal and professional finish.

• Specifically engineered for use with Radium Engineering fuel rails 20-0866
• Includes all necessary adapter fittings and high-pressure hoses
• Compatible with Audi R8 and Lamborghini Huracan models
• Streamlines fuel system installation for a clean, factory-like fitment
• Manufacturer Part Number: 20-0866-PK

Fits Audi R8 and Lamborghini Huracan models equipped with port injection systems. This Radium Engineering Fuel Rail Kit (20-0866) is engineered for a precise, direct bolt-in installation, allowing for increased fuel volume and flexible plumbing options without requiring permanent modifications to the chassis or engine components.

• Direct bolt-on fitment using factory mounting points
• Optimized for Audi R8 and Lamborghini Huracan port injection systems
• Precision-machined construction for reliable high-pressure performance
• Compatible with aftermarket plumbing and fittings
• Manufacturer Part Number: 20-0866

Note: This kit includes the fuel rails only; a plumbing kit is required and available for purchase separately.

Fits 1991-1995 Toyota MR2 Base and Turbo models equipped with the 3S-GTE engine.

This Radium Engineering fuel rail is engineered for high-performance Toyota 3S-GTE builds, providing a high-volume fuel delivery solution that replaces the restrictive factory rail. CNC machined for precise fitment and durability, it features a large internal bore to accommodate high-flow demands and help dampen pressure pulses. It is designed as a direct bolt-on component, requiring no permanent modifications to the engine or chassis.

The rail is compatible with stock fuel injectors as well as aftermarket injectors that utilize the same fitment. It is equipped with four 8AN ORB (O-Ring Port) ports, allowing for versatile plumbing configurations including the use of fuel pressure regulators, pulse dampers, and gauge adapters.

• Manufacturer Part Number: 20-0849
• CNC machined aluminum construction
• Four 8AN ORB ports for plumbing and fuel accessories
• Compatible with factory or aftermarket injectors
• Bolts directly to factory mounting points
• Note: Fittings and port plugs are sold separately

Fits 2001-2006 BMW 330Ci Base (M54 engine).

This Radium Engineering fuel rail plumbing kit provides the essential components required to adapt a Radium fuel rail to the factory fuel line system in the BMW E46 engine bay. By using this kit, installers can maintain a reliable, leak-free connection between high-performance aftermarket rails and the OEM chassis lines without the need for custom hose fabrication.

• Specifically designed for the BMW M54 engine platform
• Adapts Radium fuel rails to factory fuel delivery lines
• Includes all necessary plugs and adapter fittings
• Engineered for high-pressure fuel system integrity
• Manufacturer Part Number: 20-0807-PK

This Radium Engineering fuel rail is a high-flow, bolt-on solution designed for BMW M50, M52, M54, S50, and S52 inline-six engines. Engineered for versatility, this single rail kit replaces the restrictive factory unit to support higher horsepower demands and modern fuel systems.

Constructed for precision and durability, the rail features three 8AN ORB (O-Ring Boss) ports to accommodate various plumbing configurations, such as a fuel pressure gauge, a pulse damper, or a custom return line. It is fully E85 compatible, making it suitable for builds using ethanol-based fuels. This kit is designed to work seamlessly with factory injectors or aftermarket injectors sharing the same fitment profile.

• Fits BMW M50, M52, M54, S50, and S52 engines
• Three 8AN ORB ports for flexible plumbing and sensor integration
• Full E85 and alcohol-based fuel compatibility
• Compatible with factory-style injector fitment
• Direct bolt-on installation
• Manufacturer Part Number: 20-0770

Fits 1990-1993 Mazda Miata (1.6L).

This Radium Engineering fuel rail plumbing kit is engineered to simplify the installation of a Radium fuel rail on the Mazda 1.6L B6 engine. These specialized fittings provide a direct path to adapt the aftermarket rail to the factory fuel system, ensuring a secure and reliable connection without requiring extensive custom lines. This kit is specifically designed to allow the retention and hookup of the original equipment fuel pressure regulator, making it an essential component for owners looking to upgrade their fuel delivery while maintaining OEM system architecture.

• Direct-fit plumbing for Radium fuel rails
• Integrates factory fuel system and regulator components
• Precision-machined for leak-free performance
• Simplifies fuel system upgrades on B6 engines
• Manufacturer Part Number: 20-0769-PK

Fits 1990-1993 Mazda Miata (1.6L B6).

This Radium Engineering high-flow fuel rail is engineered to support high-performance demands on the Mazda 1.6L B6 engine. By replacing the restrictive factory rail with a larger internal bore, it ensures consistent fuel pressure and adequate volume for modified engines. The rail is machined with 8AN ORB (3/4-16 female) ports on both ends, providing the flexibility needed for custom fuel system plumbing.

• CNC machined construction for precise fitment and durability
• Large internal bore helps dampen fuel pressure pulses
• Dual 8AN ORB inlet/outlet ports for high-flow capacity
• Manufacturer Part Number: 20-0769-02

Note: This product includes the fuel rail only. Fittings are not included and must be sourced separately to suit your specific fuel line configuration.

Designed for high-horsepower applications, the Radium fuel rail for the Toyota 1JZ-GTE VVT-i engine provides the increased fuel volume and flow capacity required for modified builds. This rail is CNC machined from 6061 aluminum and features a large internal bore to minimize pressure drops and dampen fuel pulses across the rail. The ports are machined with 8AN ORB (3/4"-16) threads to offer flexibility for various plumbing and fitting configurations.

• Fits Toyota 1JZ-GTE VVT-i engines
• CNC machined 6061 aluminum construction for durability and precision
• 8AN ORB (3/4"-16) inlet and outlet ports
• Anodized finish for full compatibility with gasoline, E85, and alcohol-based fuels
• Direct-fit design compatible with performance injectors
• Manufacturer Part Number: 20-0768

Designed specifically for the Toyota G16E-GTS engine, the Radium Engineering Fuel Rail Plumbing Kit (20-0766-PK) provides the specialized fittings and adapters required to install the Radium 20-0766 fuel rail. This kit eliminates the need for custom fabrication by facilitating a direct connection to the vehicle's factory fuel infrastructure.

• Designed exclusively for use with Radium Engineering fuel rail 20-0766
• Includes adapters for seamless hookup to the OEM fuel feed line
• Retains factory sensor compatibility for accurate engine management
• Precision-machined components ensure a secure, leak-free seal
• Simplified bolt-on installation for performance fuel systems
• Manufacturer Part Number: 20-0766-PK

This plumbing kit ensures a professional installation by bridging the gap between high-flow aftermarket components and original equipment fuel lines.

Fits 2023+ Toyota GR Corolla models equipped with the G16E-GTS 1.6L turbocharged engine.

The Radium Engineering Billet Fuel Rail (MPN: 20-0766) provides a high-flow fueling solution for the G16E-GTS platform. CNC machined from 6061 billet aluminum and finished with a durable anodized coating, this rail features a large internal bore designed to increase fuel volume and dampen pressure pulses in high-performance applications.

Engineered for versatility, this fuel rail is fully E85 compatible. It can be integrated into the factory system, retaining all OE sensors and fittings when used with a Radium plumbing kit, or it can be configured with -AN hoses for custom fuel system builds.

• CNC machined 6061 billet aluminum construction
• E85 and alcohol fuel compatible
• Large internal bore for increased flow capacity
• Compatible with factory sensors (requires Radium plumbing kit)
• Supports custom -AN hose plumbing for high-horsepower setups
• Manufacturer Part Number: 20-0766

Fits Subaru Phase-II EZ30 and EZ36 6-cylinder engines.

The Radium Engineering Top Feed Conversion Fuel Rail Kit (20-0765-02) provides a high-flow solution for enthusiasts upgrading their Subaru 6-cylinder fueling system. These rails are CNC machined for precise fitment and allow for the transition to modern top-feed injectors, providing more options for high-output builds. Designed as a direct bolt-on component, this kit simplifies the conversion process while improving fuel delivery headroom.

• CNC machined construction for precise tolerances and durability
• Large internal bore supports high-horsepower fuel requirements
• Direct bolt-on fitment to the engine's factory mounting points
• Compatible with OEM or common aftermarket top-feed fuel injectors
• Features 8AN ORB female ports (adapter fittings sold separately)
• Manufacturer Part Number: 20-0765-02

Fits Nissan RB20DET engines.

The Radium Engineering high-flow fuel rail is a precision-engineered upgrade for the Nissan RB20DET engine, designed to support high-performance builds by replacing the restrictive factory rail. This unit is CNC-machined and features a large internal bore to improve fuel distribution and dampen pressure pulses, ensuring consistent delivery across all cylinders. It is a direct bolt-on solution that maintains compatibility with both OEM and aftermarket fuel injectors.

• Precision CNC-machined construction for reliable sealing and fitment
• Equipped with two 8AN ORB end ports and one 8AN ORB auxiliary port
• Features a dedicated 1/8" NPT port for a fuel pressure gauge or sensor
• Designed to accommodate various injector heights and configurations
• Compatible with factory or aftermarket fuel systems
• Manufacturer Part Number: 20-0757

Fits 2020-present Toyota MK5 Supra models. This Radium Engineering Fuel Rail Plumbing Kit (20-0753-PK) provides a streamlined solution for connecting a Radium port injection fuel rail to the vehicle's factory fuel system. By utilizing a high-quality T-fitting, this kit allows for a clean integration without requiring extensive custom fabrication or permanent modification to the OEM fuel lines.

Engineered for reliability and high-flow performance, this plumbing kit ensures consistent fuel delivery to supplemental port injectors, supporting the increased fueling demands of tuned B58 engines. It replaces the need for custom-made lines with a bolt-on solution designed for precise fitment and leak-free operation.

• Direct fit for Radium Engineering port injection fuel rails
• Integrated T-fitting for seamless connection to factory fuel lines
• Includes all necessary adapters and specialized fittings
• Engineered for high-pressure fuel system reliability
• Manufacturer Part Number: 20-0753-PK

Fits 2000-2005 Honda S2000 Base.

The Radium Engineering fuel rail for the 2000-2005 Honda S2000 provides a high-flow fuel delivery solution for both factory and high-performance engines. CNC machined from 6061 aluminum, this rail features a large internal bore to minimize pressure drops and accommodate increased fuel demands. It is finished with a durable anodized coating and laser engraving, making it fully compatible with E85 and all standard petrol fuels. The rail is designed to accept both OEM fuel injectors and aftermarket injectors of the same fitment.

• Manufacturer Part Number: 20-0591-02
• CNC machined 6061 aluminum construction
• Dual 8AN ORB end ports and a center 8AN ORB port
• Anodized and laser engraved for corrosion resistance
• Compatible with E85 and alcohol-based fuels
• Retains compatibility with OEM and aftermarket injectors

Fits Subaru EJ V1-V2 4-cylinder engines. These Radium fuel rails are engineered to convert early side-feed intake manifolds to a modern top-feed injector configuration. This conversion is a critical upgrade for high-performance builds, allowing for the use of modern injectors with superior spray patterns and higher flow rates.

The rails are designed with a large internal bore to dampen pressure pulses and ensure consistent fuel delivery across all cylinders. Each end of the rail is machined with 8AN ORB (3/4-16 O-ring boss) ports, providing a secure, leak-free seal and maximum flexibility for custom fuel system plumbing.

• Compatible with 4-cylinder Subaru EJ V1-V2 engines
• Facilitates side-feed to top-feed injector conversion
• 8AN ORB ports for high-flow plumbing versatility
• Large internal bore supports high-horsepower applications
• Manufacturer Part Number: 20-0579-02

Fits select 2004-2012 Subaru Forester, Impreza, Legacy, and Outback models with EJ-series engines.

Radium Engineering top-feed fuel rails are designed for high-performance Subaru EJ applications that utilized top-feed injectors from the factory. This specific version features an auxiliary port located on the top surface of the rail, providing necessary clearance for engines equipped with bulky AVCS (Active Valve Control System) components that often interfere with traditional side-port fittings.

Each rail is precision CNC machined from 6061 aluminum and finished with a durable anodized coating for protection against corrosion and wear. The large internal bore ensures consistent fuel pressure and flow across all injectors, even in high-horsepower builds. These rails are fully compatible with all fuel types, including E85 and other alcohol-based blends.

• Manufacturer Part Number: 20-0577-02
• Top-mounted auxiliary port for AVCS component clearance
• CNC machined 6061 aluminum construction
• Anodized finish for long-term durability
• Compatible with E85 and alternative fuels
• Direct replacement for factory top-feed fuel rails