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 Audi R8, Lamborghini Huracan, and Lamborghini Gallardo LP models equipped with the 5.2L V10 engine.

The Radium Engineering FHST (Fuel Hanger Surge Tank) is a precision-engineered in-tank fueling solution designed to support the increased demands of port injection. By providing a dedicated location for an additional fuel pump within the factory fuel tank, the FHST ensures consistent fuel delivery and helps prevent starvation during high-performance driving or increased power applications.

• Specifically designed for the 5.2L V10 Audi/Lamborghini platform
• Integrated in-tank surge tank design facilitates easy port injection upgrades
• Maintains reliable fuel supply for high-horsepower builds
• Constructed from high-quality, fuel-safe materials
• Note: Fuel pump is not included
• Manufacturer Part Number: 20-0860

Fits Nissan GT-R (R35) models.

The Radium Engineering Fuel Hanger Feed Kit provides a high-flow plumbing solution to connect a Radium in-tank fuel hanger directly to the engine bay rails. This kit replaces restrictive factory lines with dual -6AN feed lines to support higher horsepower applications requiring increased fuel volume. The included stainless steel fuel filter ensures debris is captured before reaching the injectors while maintaining the flow characteristics required for high-demand fuel systems.

• Manufacturer Part Number: 20-0851-03
• Dual -6AN high-flow PTFE feed lines
• Integrated stainless steel fuel filter
• Includes all necessary adapter fittings and hardware
• Designed specifically for use with Radium Engineering R35 fuel hangers

Fits 2015-2021 Subaru WRX (FA20).

The Radium Engineering Fuel Level Sender Adapter is a specialized bracket required for drivers upgrading to a Radium in-tank fuel pump hanger. Because the factory fuel pump assembly housing typically holds the fuel level sender, replacing the entire OE unit with a high-flow Radium hanger leaves the sender without a mounting point. This adapter solves that issue by providing a secure, precise location for the original equipment sensor.

• Specifically engineered for use with Radium Engineering in-tank fuel pump hangers
• Ensures the factory fuel level sender remains functional for accurate dash readings
• Robust construction designed to withstand constant fuel immersion
• Maintains proper sensor orientation and depth within the fuel tank
• Manufacturer Part Number: 20-0850

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

The Radium Engineering Shrouded SAE Fuel Level Sender (20-0847-297) provides high-precision fuel volume data for performance fuel cells and custom tanks. At 11.7 inches in length, this unit features a protective outer shroud that acts as a stilling well, dampening fuel slosh to ensure stable and consistent gauge readings during high-G cornering or rapid acceleration.

Built for durability in harsh environments, this sender is manufactured from stainless steel to prevent corrosion across various fuel types. It utilizes the standard 5-bolt SAE mounting pattern, making it a direct fit for most aftermarket fuel cells and fuel pump hangers.

• Length: 11.7 inches (297mm)
• Resistance Range: 0 Ohms (Empty) / 90 Ohms (Full)
• Mounting: Standard 5-bolt SAE pattern
• Construction: Stainless steel body and internal components
• Fuel Compatibility: Gasoline, E85, Ethanol, Methanol, and Diesel
• Manufacturer Part Number: 20-0847-297

Specifically designed for precision monitoring in high-performance fuel systems, this Radium Engineering 8-inch fuel level sender is a direct fit for Radium 6-gallon, 10-gallon, and spare tire fuel cells. The shrouded design acts as a baffle, protecting the internal float from fuel slosh and turbulence to ensure a steady and accurate gauge reading during high-G cornering or acceleration.

Built with robust stainless steel components, this sender is engineered to withstand long-term immersion in various fuel types. It utilizes a standard SAE 5-bolt mounting pattern for a secure interface with the fuel cell flange and operates on a 0-90 ohm resistance range, making it compatible with most common aftermarket gauges and digital dashes.

• Manufacturer Part Number: 20-0847-203
• Length: 8.0 inches (203mm)
• Resistance Range: 0-90 Ohms
• Construction: Stainless steel body and shroud
• Mounting: SAE 5-bolt pattern
• Fitment: Radium Engineering 6-gallon, 10-gallon, and Spare Tire fuel cells

Streamline your fuel system configuration with the Radium Engineering FCST-X Direct Mount Refueling Kit. Designed specifically for fuel cells equipped with the Radium FCST-X (Fuel Cell Surge Tank), this kit replaces remote filler neck setups with a compact, tank-mounted solution that bolts directly to the surge tank assembly.

• Precision Fitment: Engineered to integrate seamlessly with Radium Engineering FCST-X equipped fuel cells.
• Standard Fill Neck: Features a secure, knurled screw-off cap for easy refueling access without the need for additional hoses.
• Integrated Venting: Includes a dedicated -8AN (8AN) male flare vent fitting to ensure proper tank pressure equalization during high-flow filling.
• Durable Construction: Manufactured with high-grade materials to withstand various fuel types and track conditions.

This kit is essential for racers and builders looking to simplify their fuel cell plumbing while maintaining a high level of safety and reliability. Manufacturer Part Number: 20-0841-20.

The Radium Engineering FCST-X Complete Refueling Kit (20-0841-02) is a comprehensive solution for vehicles equipped with FCST-X fuel cells that require a remote-mounted fill point. This system allows for easier refueling access by relocating the filler neck away from the cell, utilizing high-quality components designed for the rigors of performance and racing environments.

• Complete System: Specifically engineered for Radium Engineering FCST-X equipped fuel cells.
• Fill Hose: Includes a 1.5-inch diameter, 3-foot length fuel-resistant fill hose for flexible routing.
• Refueling Hardware: Features a remote-mounted filler with a secure screw-off cap and an angled fill neck.
• Ventilation: Comes with an 8AN vent line to ensure efficient air displacement during high-speed filling.
• Included Equipment: Includes a dedicated dump can featuring a standard filler spout.
• Manufacturer Part Number: 20-0841-02

Fits 2008-2015 Cadillac CTS-V Sedan and Coupe models.

The Radium Engineering Fuel Pump Access Cover (MPN: 20-0835) provides a permanent, professional solution for servicing fuel system components without the labor-intensive requirement of dropping the vehicle's fuel tank. This panel is designed to provide clear, top-side access to the fuel pump hanger for faster maintenance, pump swaps, or diagnostic work.

Constructed from lightweight, precision-machined aluminum, the cover ensures a clean finish while maintaining structural integrity. Note that installation requires permanent modification to the vehicle, involving drilling and cutting of the factory floor pan to create the access point.

• Manufactured from high-grade aluminum for durability and corrosion resistance
• Eliminates the need to drop the fuel tank for pump or hanger service
• Low-profile design minimizes interference with factory carpet and trim
• Required hardware and instructions for installation included
• Manufacturer Part Number: 20-0835

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

The Radium Engineering Fuel Hanger FPR Block Off is a precision-engineered solution for drivers transitioning from a returnless or internally regulated setup to a traditional return-style fuel system. This kit (MPN: 20-0806) decommissions the integrated fuel pressure regulator found within specific Radium fuel pump hangers, allowing for the use of an external, manifold-referenced regulator.

By bypassing the internal regulator, users can achieve more precise fuel pressure management, which is critical for high-horsepower builds and forced induction applications where fuel rail pressure must scale with boost. The component is designed for a direct fit, ensuring a secure, leak-free seal within the fuel assembly.

• Converts Radium fuel hangers to a return-style fuel system
• Decommissions internal built-in fuel pressure regulators
• Enables more precise fuel control via external regulators
• Precision-machined for exact fitment and reliability
• Manufacturer Part Number: 20-0806

The Radium Engineering Pump Outlet Adapter (MPN: 20-0798) is a specialized fitting designed to install directly onto specific fuel pump outlet barbs. This adapter features an integrated check valve, which is critical for maintaining residual fuel system pressure after the pump is turned off, ensuring faster restarts and preventing fuel backflow.

Constructed for durability and precision, this component provides a reliable 10mm male hose barb connection, making it an essential upgrade for custom fuel systems where a high-flow check valve is required at the source.

• Manufacturer Part Number: 20-0798
• Integrated internal check valve maintains fuel rail pressure
• 10mm male hose barb outlet for secure fuel line plumbing
• Machined for a precise fit on specific pump outlet barbs
• Improves engine startup by preventing pressure drop

Fits select 1992-2000 Honda Civic and 1994-2001 Acura Integra models.

This Radium Engineering dual pump add-on kit (PN 20-0797-00) is designed to expand the capabilities of the Radium in-tank fuel pump hanger (PN 20-0792-00). This conversion kit allows for the addition of a second high-flow pump to support higher horsepower builds requiring increased fuel volume without the need for a completely new hanger assembly.

• Specifically engineered for use with Walbro F90000267, F90000274, and F90000285 fuel pumps
• Integrates seamlessly with Radium Engineering part number 20-0792-00
• Includes all necessary hardware and components for a second pump installation
• Maintains the reliability and fitment of the factory fuel tank setup
• Manufacturer Part Number: 20-0797-00

Fits 1992-2000 Honda Civic and 1994-2001 Acura Integra models equipped with Radium Engineering fuel hanger kit 20-0790-00.

This Radium Engineering Dual Pump Add-On Kit provides the components required to expand your existing fuel system's capacity by adding a second pump. It is designed specifically to integrate with the Radium in-tank fuel hanger, allowing for increased fuel flow to support high-horsepower demands without needing to replace the entire assembly. This is an essential upgrade for forced induction or high-performance builds requiring redundant or higher-volume fueling.

• Specifically compatible with Radium Engineering Fuel Hanger Kit 20-0790-00
• Supports the installation of a second in-tank fuel pump
• Enables dual-pump configurations for high-flow fuel requirements
• Includes necessary hardware for pump integration
• Manufacturer Part Number: 20-0796-00

Fits select 1992-2000 Honda Civic and 1994-2001 Acura Integra models.

The Radium Engineering Fuel Hanger (MPN 20-0792-00) is a high-performance drop-in solution designed to replace the factory unit and accommodate high-flow aftermarket fuel pumps. Engineered for enthusiasts requiring increased fuel volume, this hanger is specifically designed for use with Walbro (TI Automotive) DCSS and brushless pumps, ensuring a secure fit and optimal fuel delivery under high-demand conditions.

• CNC-machined construction for precise fitment in the factory fuel tank
• Specifically designed for Walbro F90000267, F90000274, and F90000285 fuel pumps
• Corrosion-resistant materials compatible with gasoline and E85 ethanol
• Replaces the restrictive OEM pump carrier to maximize flow potential
• Manufacturer Part Number: 20-0792-00

Fits 1992-2000 Honda Civic and 1994-2001 Acura Integra models (VTEC and non-VTEC engines).

The Radium Engineering in-tank fuel pump hanger is a high-performance upgrade designed to replace the restrictive factory assembly. It provides a secure, drop-in mounting solution for high-volume aftermarket fuel pumps, ensuring your fuel system can meet the demands of forced induction or high-horsepower naturally aspirated builds. This hanger is engineered to integrate seamlessly with the factory fuel tank while providing the flow capacity required for performance tuning.

• Specifically compatible with Walbro GSS342 and AEM 50-1000/1200 (AEM 50-12) pumps
• Replaces the OEM fuel pump hanger for improved flow and reliability
• Designed for drop-in installation into factory fuel tanks
• Compatible with gasoline and ethanol fuels
• Manufacturer Part Number: 20-0790-00

Fits select 2008-2020 Subaru Impreza, WRX, and WRX STI models.

The Radium Engineering fuel hanger is a precision-engineered drop-in replacement for the factory in-tank unit, specifically designed for high-horsepower Subaru applications. This redesigned assembly (updated for 2021) allows for the installation of one or two aftermarket fuel pumps to meet increased fueling demands. It features a single outlet design and is fully compatible with the factory fuel level sensor to ensure accurate cabin readings.

• Direct drop-in replacement for the OEM fuel hanger assembly
• Accommodates one or two aftermarket fuel pumps (pumps not included)
• Specifically designed for Walbro F90000267, F90000274, and F90000285 series
• Single outlet design for efficient fuel delivery
• Maintains full functionality of the factory fuel level sensor
• Manufacturer Part Number: 20-0782-00

Fits select 2008-2020 Subaru Impreza, WRX, and WRX STI.

This Radium Engineering fuel hanger (MPN 20-0781-00) is a high-performance, drop-in replacement for the factory in-tank unit. Specifically redesigned in 2021, this assembly facilitates the use of one or two aftermarket Deatschwerks DW400 fuel pumps to meet the high flow demands of modified EJ and FA engines. The hanger features a single outlet configuration and is engineered to retain the factory fuel level sensor, ensuring accurate dashboard readings.

• Manufacturer Part Number: 20-0781-00
• Direct drop-in replacement for the OEM Subaru fuel hanger
• Compatible with single or dual Deatschwerks DW400 fuel pumps
• Single outlet design for streamlined plumbing
• Maintains factory fuel level sensor functionality
• Updated 2021 design for optimized fitment
• Fuel pumps are not included

Fits select 2008-2020 Subaru Impreza, WRX, and WRX STI models.

This Radium Engineering fuel hanger is a drop-in replacement for the factory in-tank unit, engineered to accommodate high-flow fuel requirements for modified engines. The 2021 redesign allows for the installation of either a single pump or a dual-pump configuration to meet extreme fueling demands. This single-outlet assembly is designed to work seamlessly with the factory fuel level sensor to ensure accurate gauge readings on the dashboard.

• Compatible with Walbro GSS342 and AEM 50-1200 fuel pumps
• Supports single or dual pump configurations
• Single outlet design simplifies fuel line plumbing
• Maintains factory fuel level sensor functionality
• Redesigned version for optimized fit and performance
• Manufacturer Part Number: 20-0780-00
• Note: Fuel pumps are not included

Vehicle Fitment

The Radium Engineering XR Fuel Pulse Damper (FPD) is designed to manage the high-frequency pressure fluctuations created by the rapid opening and closing of fuel injectors in EFI systems. These pulses can lead to resonance within the fuel rail, resulting in inconsistent fueling and audible mechanical noise. By absorbing these energy waves, the XR FPD helps maintain a stable pressure environment for more precise tuning and quieter operation.

Equipped with a swivel body, this damper allows for 360-degree orientation after it is threaded into a female 8AN ORB port. This flexibility is essential for achieving clearance in crowded engine bays or tight fuel rail configurations. The unit is constructed for maximum durability and is fully compatible with all fuel types, including gasoline, ethanol (E85), and methanol.

• Manufacturer Part Number: 20-0777
• Inlet/Outlet: 8AN ORB male swivel
• Function: Attenuates fuel pressure pulses in high-performance EFI systems
• Compatibility: Safe for use with gasoline, E85, and methanol
• Design: Swivel housing for easy positioning and clearance

The Radium Engineering Fuel Pulse Damper (FPD-R) is a critical component for stabilizing fuel pressure in high-performance EFI systems. This damper is engineered to absorb the pressure waves (pulses) generated by the rapid opening and closing of fuel injectors. By smoothing these pulsations, it ensures more consistent fuel delivery and eliminates the audible "hammering" noise often associated with aftermarket fuel systems.

Designed for versatility, this unit features a male 8AN ORB fitting that threads directly into any matching female port, such as those found on fuel rails or regulators. The damper body is equipped with a swivel mechanism, allowing you to orient the unit 360 degrees after installation to clear surrounding engine components.

• Replaces erratic pressure spikes with smooth, consistent fuel flow
• 360-degree swivel body for easy installation in tight spaces
• Male 8AN ORB (3/4"-16 O-ring boss) mounting interface
• Compatible with all fuel types, including gasoline, methanol, and E85
• Anodized finish for long-term corrosion resistance
• Manufacturer Part Number: 20-0776

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