Fits select 2002-2015 Acura RSX, TSX, and Honda Civic Si models.

The DeatschWerks Honda K-Series fuel rail is engineered to provide the high-flow capacity required for performance tuning and forced induction applications. Precision-machined from billet aluminum, this rail features a large internal bore that increases fuel volume and dampens pressure pulses. This design ensures consistent fuel delivery across all injectors, making it an essential upgrade for high-horsepower K-series builds.

• Large internal bore supports high-flow fuel requirements and dampens pulsations
• Dual -8 AN ORB ports allow for flexible inlet and outlet plumbing options
• Integrated 1/8-inch NPT port for fuel pressure gauge or sensor installation
• Compatible with both OE and DeatschWerks fuel injectors
• Constructed from durable billet aluminum for maximum reliability
• Manufacturer Part Number: 7-402

Vehicle Fitment:

• 2002-2006 Acura RSX (Base, Type-S)
• 2004-2008 Acura TSX (Base)
• 2002-2015 Honda Civic Si

Fits select 2021-2025 Ford F-150 models (5.0L).

Optimize your truck's fueling with DeatschWerks F-150 Coyote 5.0 Fuel Rails. These high-flow rails are engineered to provide the consistent fuel volume and pressure necessary for high-performance 5.0L Coyote builds, making them an essential upgrade for naturally aspirated, supercharged, or turbocharged applications. By replacing the restrictive factory units, these rails ensure more uniform fuel distribution across all injectors.

Constructed for durability and a precise fit, this kit (MPN 7-306) is designed to integrate seamlessly with the factory fuel system architecture while providing the overhead needed for increased power demands.

• Specifically designed for the Ford 5.0L Coyote engine
• Provides increased fuel capacity and flow stability
• Compatible with 2021-2025 Ford F-150 trim levels including XL, XLT, Lariat, and Tremor
• Manufacturer Part Number: 7-306

Fits 2005-2010 Ford Mustang GT (4.6L 3-Valve SOHC).

DeatschWerks fuel rails are engineered to provide the increased fuel volume necessary for high-performance 4.6L Modular engines. This kit replaces the restrictive factory fuel delivery components with high-flow rails and an included crossover line, ensuring balanced pressure and consistent fuel delivery across both cylinder banks. Designed for a direct fit on SOHC 3-valve engines, these rails are a critical upgrade for supporting increased horsepower levels.

• Manufacturer Part Number: 7-305
• Application: 4.6L 3-Valve SOHC engines
• Kit includes high-flow fuel rails and crossover line
• Optimizes fuel distribution and pressure stability
• Note: Does not fit DOHC or supercharged applications

Upgrade your vehicle's fuel delivery with these high-performance fuel rails from DeatschWerks. Designed for the 5.0L V8 engine, these rails provide the volume and flow stability required for forced induction or high-output naturally aspirated builds. This kit (MPN: 7-301-OE) replaces the factory rails and includes a crossover line to ensure even fuel pressure distribution across both banks of the engine.

Fits select 2011-2025 Ford Mustang and F-150 models equipped with the 5.0L V8 engine.

• Optimized Flow: High-capacity rail bore supports significantly higher horsepower levels than OE components.
• Complete Setup: Includes the necessary crossover hose for a complete installation.
• Direct Fit: Engineered to utilize factory mounting points for a straightforward installation.
• Manufacturer Part Number: 7-301-OE

Vehicle Fitment:

• 2011-2025 Ford F-150 (King Ranch, Lariat, Platinum, SSV, XL, XLT)
• 2011-2014 Ford F-150 (FX2, FX4, STX, SVT Raptor)
• 2017-2025 Ford F-150 Raptor
• 2018-2025 Ford F-150 Police Responder
• 2021-2025 Ford F-150 Tremor
• 2013-2023 Ford F-150 Limited
• 2011-2025 Ford Mustang GT
• 2011-2014 Ford Mustang (Base, Shelby GT500)
• 2012-2013 Ford Mustang Boss 302
• 2015-2021 Ford Mustang GT Premium

Fits select 2011-2025 Ford Mustang and F-150 models.

DeatschWerks high-flow fuel rails are engineered to support the increased fuel volume requirements of performance-modified engines. Designed and quality-tested at their 36,000sf Oklahoma City facility, these rails offer the precision and reliability necessary for high-output Ford applications. Whether you are upgrading a Coyote V8, EcoBoost, or Shelby platform, these rails provide the essential infrastructure for a high-performance fuel system.

• Manufacturer Part Number: 7-300
• Optimized for high-flow fuel delivery across a wide range of engine configurations
• Precision-engineered for direct fitment on select Ford chassis
• Designed, manufactured, and quality-assured in the USA
• Compatible with a variety of fuel-specific lines and fittings

Fits select 1999-2017 GM trucks and SUVs equipped with Gen 3 or Gen 4 LS engines. This includes Chevrolet Silverado, Tahoe, and Suburban; GMC Sierra and Yukon; Cadillac Escalade; and select Hummer, Isuzu, and Saab models.

DeatschWerks GM Truck Gen 3 and 4 LS Fuel Rails are engineered to provide the fuel volume and flow capacity required for high-horsepower LS-based builds. Designed specifically for truck-style intake manifolds, these rails replace the restrictive factory setup to support increased fueling demands in both naturally aspirated and forced induction applications. Each rail is precision-manufactured for a secure fit and reliable performance under high pressure.

• Engineered specifically for Gen 3 and Gen 4 LS truck intake manifolds
• Increased internal bore for higher fuel volume and pulse dampening
• Compatible with a wide range of GM 1500, 2500, and 3500 series chassis
• Replaces factory fuel rails to support high-flow injectors
• Manufacturer Part Number: 7-206

Fits 2009-2015 Cadillac CTS V, Chevrolet Camaro ZL1, and Chevrolet Corvette ZR1 (LSA / LS9 engines).

The DeatschWerks fuel rail kit (MPN 7-205) is designed to provide the increased fuel volume necessary for high-performance LSA and LS9 applications. By replacing the stock rail setup with a high-flow bore design and an integrated crossover line, this kit ensures consistent fuel pressure and balanced delivery across both cylinder banks, which is critical for supercharged GM engines under load.

• Designed specifically for GM LSA and LS9 supercharged engine platforms
• Includes integrated crossover hose for balanced fuel distribution
• Engineered to bolt directly to factory mounting locations
• Essential for supporting high-horsepower fuel demands
• Manufacturer Part Number: 7-205

Vehicle Fitment

• 2009-2015 Cadillac CTS V
• 2012-2015 Chevrolet Camaro ZL1
• 2009-2013 Chevrolet Corvette ZR1

Fits 2009-2015 Cadillac CTS-V, Chevrolet Camaro ZL1, and Corvette ZR1 (LSA/LS9).

DeatschWerks fuel rails are engineered to provide the high-volume fuel delivery required for performance-modified supercharged Chevrolet LSA and LS9 engines. Designed as a direct replacement for the factory rail, these components ensure consistent pressure across all injectors, eliminating fuel starvation issues common in high-horsepower builds. Each rail is precision-machined for a secure fit and durable service life.

• Manufacturer Part Number: 7-204
• Application: Chevrolet LSA and LS9 Supercharged Engines
• Ensures consistent fuel distribution for high-output applications
• Compatible with OE and aftermarket fuel injectors

Vehicle Fitment:

Fits select 2005-2017 Cadillac CTS V, Chevrolet Camaro, Corvette, SS, SSR, and Pontiac G8, GTO (LS2/LS3 engines).

The DeatschWerks high-flow fuel rail kit (MPN 7-203) is engineered for enthusiasts pushing the limits of the LS2 and LS3 platforms. These rails provide the increased fuel volume necessary for high-horsepower builds while ensuring even pressure distribution across all injectors via the included crossover hose. Designed for a direct bolt-on installation, this kit eliminates the restrictions of the factory fuel rail setup, making it an essential upgrade for forced induction or heavily modified naturally aspirated engines.

• Billet aluminum construction for durability and pressure resistance
• Included crossover line ensures balanced fuel delivery to both banks
• Engineered specifically for LS2 and LS3 intake manifold geometry
• Manufacturer Part Number: 7-203

Authoritative Fitment List:

Fits select 2003-2023 Chrysler, Dodge, Jeep, and Ram vehicles including 300, Challenger, Charger, Durango, Magnum, Ram 1500, and Grand Cherokee.

DeatschWerks high-flow fuel rails provide the consistent fuel delivery and increased capacity required for high-horsepower Hemi builds. Engineered to replace restrictive factory fuel rails, this kit (MPN 7-100) is designed for enthusiasts moving beyond the limits of the stock fuel system. These rails offer improved volume to dampen pressure pulses and ensure each injector receives adequate flow, even under high demand.

• Direct fit for select 2003-2023 Hemi-equipped platforms
• Provides increased fuel volume for high-performance applications
• Engineered for durability and precision fitment
• Manufacturer Part Number: 7-100

Fits select 2002-2018 Subaru Impreza WRX, WRX STI, and Legacy GT spec.B models.

The DeatschWerks Fuel Rail Upgrade Kit (MPN 6-102-1000) provides a complete high-performance fueling solution for Subaru enthusiasts. This kit features a top feed fuel rail conversion paired with a set of four flow-matched 1000cc injectors, designed to support the increased fuel demands of modified turbocharged engines. Since 2004, DeatschWerks has specialized in drop-in fitment solutions, and this kit continues that legacy with components engineered for reliable fitment and consistent spray patterns.

• Includes set of four 1000cc high-flow fuel injectors
• Complete top feed fuel rail upgrade components
• Supports high-horsepower Subaru EJ-series applications
• Designed and quality-tested in the USA at DeatschWerks' 36,000sf facility
• Manufacturer Part Number: 6-102-1000

Fits select 2002-2017 Subaru WRX, WRX STI, and Legacy GT spec.B.

The DeatschWerks Top Feed Fuel Rail Upgrade Kit (MPN 6-102-0750) is a comprehensive solution for enthusiasts looking to increase fuel volume and consistency in their Subaru’s fuel system. This kit replaces the restrictive factory delivery setup with high-flow rails designed to reduce pressure drops and eliminate fuel pulsation, ensuring each cylinder receives the precise volume required under high load.

Paired with a matched set of 750cc injectors, this upgrade provides the necessary overhead for increased boost and performance tuning. These top-feed components are engineered for exact fitment, utilizing high-quality materials to withstand the rigors of high-pressure fuel delivery and performance driving.

• Complete kit including top feed fuel rails and 750cc injectors
• Designed to support higher horsepower levels by increasing fuel flow capacity
• Reduces pressure fluctuations for more stable tuning
• Engineered for direct fitment on specified Subaru intake manifolds
• Manufacturer Part Number: 6-102-0750

Fits select 2002-2017 Subaru WRX, WRX STI, and Legacy GT spec.B.

DeatschWerks top feed fuel rails are engineered to replace the restrictive factory fuel rails on MPFI Subaru engines. These high-flow rails provide a larger internal bore to minimize pressure drops and ensure consistent fuel delivery across all cylinders, making them a critical upgrade for high-performance builds requiring increased fuel volume. Precision machined for a reliable fit, they allow for a cleaner engine bay and more efficient fuel routing compared to OEM components.

• Manufacturer Part Number: 6-102
• Fuel Feed Style: Top feed
• Engine Compatibility: Subaru MPFI-equipped models
• Optimized for high-flow injector setups to support increased horsepower levels
• Designed for reliable performance and easy integration with upgraded fuel lines

Fits 2004-2006 Subaru Impreza WRX STI and Legacy GT models. This DeatschWerks (DW) fuel rail conversion kit eliminates the flow limitations and injector selection constraints of the factory side-feed setup. By converting your Subaru to a top-feed configuration, you gain access to a larger variety of modern, high-flow injectors and increased rail volume necessary for high-performance applications.

This comprehensive kit includes application-specific fuel rails, mounting hardware, and a matched set of four DW 1000cc fuel injectors. Every injector is flow-balanced to ensure consistent delivery across all cylinders, reducing the risk of lean conditions under boost. The rails are designed to bolt directly to the factory intake manifold while providing the clearance needed for aftermarket fuel lines and pressure regulators.

• Converts factory side-feed systems to high-flow top-feed configuration
• Includes a matched set of four 1000cc fuel injectors
• Application-specific fuel rails for precise fitment
• Complete with all necessary installation hardware
• Manufacturer Part Number: 6-101-1000

Fits select 2004-2018 Chevrolet Silverado, GMC Sierra, and Dodge/Ram 2500/3500 trucks (6.7L).

The BD Diesel Common Rail Fuel Plug is a precision-engineered solution designed to replace the failure-prone factory pressure relief valve (PRV) on diesel common rail systems. When the stock relief valve weakens or fails to seat properly, it allows rail pressure to bleed off, leading to hard starts, decreased performance, and potential diagnostic trouble codes. This fuel plug provides a positive seal that maintains full rail pressure even under high-demand or high-performance conditions.

• Replaces the factory pressure relief valve to eliminate pressure bleed-off
• Engineered to seal in rail pressures up to 30,000 psi
• Improves engine starting consistency by maintaining fuel rail integrity
• Direct replacement for the stock relief valve for straightforward installation
• Essential for high-performance engines where rail pressure demands exceed stock valve tolerances
• Manufacturer Part Number: 1050071

Fits 2003-2007 Dodge Ram 2500 and 3500 (5.9L).

The BD Diesel Common Rail Fuel Plug (MPN 1050070) is designed to replace the factory pressure relief valve on 5.9L Cummins engines. In high-performance or high-mileage applications, the stock relief valve can weaken or blow out, leading to significant rail pressure loss and decreased engine performance. This solid fuel plug eliminates that failure point by effectively sealing the rail.

• Replaces failing or weak factory pressure relief valves
• Seals fuel rail pressure up to 30,000 psi
• Direct-fit design replaces the stock relief valve with no modifications required
• Helps maintain consistent rail pressure for reliable fueling

Fitment Table:

Fits 2008-2015 Mitsubishi Lancer Evolution GSR, MR, MR Touring, SE, and Final Edition.

The AMS Performance EVO X Fuel Rail is engineered to provide the increased fuel volume necessary for high-boost applications. Precision CNC-machined from aluminum and finished in a durable black anodize, this rail features a large -6AN internal bore (7.5 mm) that delivers over 25% more flow area than the restrictive factory rail. Designed as a true bolt-on upgrade, it installs using your factory fuel lines and fuel pressure regulator while remaining compatible with all factory-style fuel injectors.

• Precision CNC-machined aluminum construction
• Durable black anodized finish with signature AMS logo
• Large -6AN inlet and outlet ports
• Integrated pulsation dampener for consistent fuel delivery
• Direct bolt-on fitment with factory lines and injectors
• Manufacturer Part Number: AMS.04.07.0006-2

Fits 2008-2015 Mitsubishi Lancer Evolution X (GSR, MR, MR Touring, SE, and Final Edition).

The AMS Performance EVO X Fuel Rail is engineered to support the increased fuel demands of high-boost applications. CNC machined from billet aluminum and finished in a durable red anodizing, this rail provides a significant upgrade over the restrictive factory unit. With a -6AN (7.5 mm) diameter inlet and outlet, it offers over 25% more flow area than stock to ensure consistent fuel delivery and pressure stability.

This rail is a true bolt-on component designed for seamless integration. It retains compatibility with your factory fuel lines, fuel pressure regulator, and OE-style fuel injectors, making it a straightforward upgrade for enthusiasts seeking reliable performance without the need for custom plumbing.

• CNC machined aluminum construction for maximum durability
• Red anodized finish featuring the signature AMS logo
• -6AN (7.5 mm) diameter inlet and outlet for high-flow capacity
• Provides 25% more flow area than the factory rail
• Includes integrated pulsation dampener for pressure smoothing
• Compatible with factory fuel lines, FPR, and injectors
• Manufacturer Part Number: AMS.04.07.0006-1

Fits 1999-2004 Ford F-150 (including Lightning and Harley-Davidson Edition) and 1999 Ford F-250 (5.4L).

The Aeromotive 14127 Billet Fuel Rail System is a complete, custom-engineered installation solution for the Ford 5.4L engine. Designed as a high-flow return-style system, this kit replaces restrictive factory rails with CNC-machined billet components capable of supporting high-horsepower applications. The rails are matched with custom steel mounting brackets to ensure a secure fitment on the 5.4L manifold, while the included stainless steel braided lines and billet AN-hose ends provide a leak-free, professional-grade fuel delivery path.

• CNC-machined billet fuel rails for maximum flow and durability
• Custom steel mounting brackets specifically for the Ford 5.4L modular engine
• Billet adjustable fuel pressure regulator or fuel pressure sensor adapter
• High-quality stainless steel braided fuel lines
• Complete set of ORB-port fittings with O-rings and billet aluminum AN-hose ends
• Custom OEM fuel supply and return line adapter fittings included
• Manufacturer Part Number: 14127

Fits 1998-2004 Ford Mustang models, including Base, GT, Mach 1, and SVT Cobra (4.6L).

Aeromotive Billet High Flow Fuel Rails are engineered to deliver massive fuel volume with bolt-on convenience. Featuring a full 5/8-inch ID through-bore, these rails are capable of supporting up to 3,000 HP and are designed to minimize hydraulic fluctuations, ensuring optimal injector supply across all cylinders. Each rail is CNC-machined from billet aluminum and finished in a Red Type II bright dip anodized coating for lasting corrosion resistance and a professional aesthetic.

• Full 5/8" ID bore supports up to 3,000 HP applications
• ORB-08 ports at each end for positive, leak-free sealing
• CNC-machined billet aluminum construction for precise fit and finish
• Red Type II bright dip anodized finish protects against corrosion
• Custom-engineered steel mounting brackets provide a secure, durable platform
• Additional inlet/outlet ports provided for plumbing convenience
• Compatible with -10 AN lines using ORB-08/AN-10 adapter (P/N 15641, sold separately)
• Manufacturer Part Number: 14111

Fits 1996-1998 Ford Mustang Base, GT, and SVT Cobra (4.6L).

Engineered for high-performance builds, Aeromotive Billet Fuel Rails provide the volume and stability needed to support up to 3,000 HP. These rails feature a massive 5/8-inch internal diameter (ID) through-bore that reduces pressure fluctuations and ensures consistent fuel delivery to every injector. The CNC-machined billet aluminum construction ensures a precise fit, while the red Type II bright dip anodized finish provides a durable barrier against corrosion.

The 14104 kit includes application-specific steel mounting brackets designed for a secure, bolt-on installation. Each rail is equipped with ORB-08 ports at the ends for positive, leak-free sealing and can be adapted to -10 AN lines using the optional ORB-08/AN-10 adapter (P/N 15641). Additional inlet/outlet ports are integrated where necessary to simplify plumbing in complex fuel systems.

• Supports up to 3,000 HP flow capabilities
• Full 5/8-inch ID through-bore for optimal injector supply
• CNC-machined billet aluminum construction
• Red Type II bright dip anodized finish
• ORB-08 ports for secure, high-flow connections
• Custom-engineered steel mounting brackets included
• Manufacturer Part Number: 14104

Fits 1996-2004 Ford Mustang models, including GT, Bullitt, Mach 1, and SVT Cobra.

Aeromotive High Flow Billet Fuel Rails (MPN 14103) are designed to provide the volume and stability required for high-performance fuel systems. Featuring a massive 5/8-inch internal diameter through bore, these rails are capable of supporting fuel flow for engines producing up to 3,000 HP. The large internal volume significantly reduces hydraulic pressure fluctuations caused by large injectors, ensuring consistent fueling across all cylinders.

CNC-machined from 6061 T6 billet aluminum, these rails feature a Red Type II bright dip anodized finish for superior corrosion resistance and a high-end look in the engine bay. Each rail is equipped with ORB-08 ports at both ends to provide plumbing flexibility and high-flow capacity. The system includes application-specific steel mounting brackets that utilize factory mounting points for a secure, bolt-on installation.

• Full 5/8-inch I.D. through bore for maximum flow
• Supports up to 3,000 HP flow capabilities
• ORB-08 inlet and outlet ports for positive, leak-free sealing
• CNC-machined billet aluminum construction
• Red Type II bright dip anodized finish
• Custom steel mounting brackets included
• Compatible with -10 AN lines when using Aeromotive adapter 15641
• Manufacturer Part Number: 14103

The AEM High Volume fuel rail is engineered for the 2005-2006 Mitsubishi Lancer Evolution (including MR, RS, and SE models) to provide the consistent fuel delivery required for high-performance builds. Featuring a large 1/2-inch internal bore, this rail supports fuel flow for applications reaching up to 1,000 horsepower while effectively dampening backpressure pulses created by large aftermarket injectors. It remains fully compatible with stock injector sizes for users planning incremental upgrades.

CNC-machined from billet aluminum and finished in black anodizing with laser engraving, this rail is as durable as it is functional. It includes a custom fitting for the factory fuel line, making it a bolt-on solution for standard setups, while the ends are pre-tapped to accept -6 AN or 9/16"x18 fittings for custom fuel plumbing. An integrated 1/8 NPT port allows for the easy addition of a fuel pressure gauge or nitrous oxide pick-up.

• Manufacturer Part Number: 25-131BK
• 1/2-inch large bore supports up to 1,000 HP and dampens pressure pulses
• CNC-machined billet aluminum construction with black anodized finish
• Integrated 1/8 NPT port for gauges or nitrous accessories
• Ends pre-tapped for -6 AN or 9/16"x18 fittings
• Includes custom fuel line fitting, injector O-rings, and all necessary hardware

Vehicle Fitment:
2005-2006 Mitsubishi Lancer Evolution (Base, MR, RS, SE)

The AEM High Volume Fuel Rail provides the fuel flow necessary for high-performance 1996-2000 Honda Civic and 1996-1997 Civic del Sol applications. Engineered with a large 1/2-inch internal bore, this rail supports power levels up to 1,000 HP while effectively dampening backpressure pulses generated by high-flow fuel injectors.

CNC-machined from billet aluminum and finished in black anodizing with laser engraving, this rail integrates seamlessly with the factory fuel system using the included custom fitting. For high-output custom setups, the ends are pre-tapped to accept -6 AN or 9/16"x18 fittings. An integrated 1/8 NPT port allows for the direct installation of a fuel pressure gauge or nitrous oxide pick-up.

• Fits 1996-2000 Honda Civic and 1996-1997 Honda Civic del Sol
• Large 1/2-inch bore supports fuel flow up to 1,000 HP
• Dampens backpressure pulses from large injectors
• CNC-machined from billet aluminum for durability and precision
• Includes 1/8 NPT port for fuel pressure gauge or nitrous application
• Pre-tapped for -6 AN or 9/16" x 18 fittings
• Includes all necessary hardware, fittings, and injector O-rings
• Manufacturer Part Number: 25-109BK

Fits 1990-1997 Honda Accord and 1992-2001 Honda Prelude models.

The AEM High Volume Fuel Rail is engineered for high-performance builds, featuring a massive 1/2-inch internal bore to provide the consistent fuel flow required for applications supporting up to 1,000 horsepower. This large-bore architecture serves a dual purpose: it provides the volume necessary for high-demand setups while dampening backpressure pulses generated by large aftermarket injectors. This rail remains compatible with factory injector sizes for versatility in staged builds.

CNC-machined from 6061 T-6 billet aluminum and finished in a durable black anodizing, this rail integrates seamlessly into the engine bay. It includes a 1/8 NPT port for easy installation of a fuel pressure gauge or nitrous pick-up. For plumbing flexibility, the rail is pre-tapped to accept -6 AN or 9/16"x18 fittings and includes a custom adapter to retain the factory fuel line where required.

• Manufacturer Part Number: 25-104BK
• 1/2-inch internal fuel bore supports up to 1,000 HP
• Dampens fuel pressure pulses from high-flow injectors
• CNC-machined from 6061 T-6 billet aluminum
• Black anodized finish with laser-engraved branding
• 1/8 NPT port for gauges or nitrous accessories
• Includes injector O-rings, fittings, and mounting hardware
• Manufactured and assembled in the USA

Fits 1994-2000 Honda Civic Si and Civic del Sol VTEC.

The AEM 25-103BK High Volume Fuel Rail is engineered for high-performance builds requiring increased fuel delivery. CNC-machined from 6061 T6 billet aluminum, it features a large 1/2-inch internal bore to support applications up to 1,000 horsepower. This oversized bore also serves as a pulse dampener, smoothing out backpressure pulses created by large aftermarket injectors to ensure consistent pressure across the rail.

Installation is straightforward as a direct bolt-on component. The rail includes a custom fitting to mate with the factory fuel line, while the ends are pre-tapped to accept -6 AN or 9/16" x 18 fittings for those running custom plumbing. A dedicated 1/8 NPT port is integrated into the rail for easy installation of a fuel pressure gauge or a nitrous pick-up.

• 1/2-inch internal bore supports fuel flow up to 1,000 HP
• CNC-machined from 6061 T6 billet aluminum with a black anodized finish
• Dampens backpressure pulses from large fuel injectors
• Integrated 1/8 NPT port for gauges or nitrous systems
• Pre-tapped for -6 AN or 9/16" x 18 fittings
• Compatible with factory or custom fuel lines
• Includes injector O-rings, hardware, and installation fittings
• Manufactured and assembled in the USA
• Manufacturer Part Number: 25-103BK

Fits select 1990-2006 Acura, Honda, and Mitsubishi models, including Integra, Civic, Accord, Prelude, S2000, and Lancer Evolution.

The AEM High Volume fuel rail is engineered for high-performance applications where consistent fuel delivery is critical. Featuring a massive 1/2-inch internal bore, this rail supports fuel flow for setups reaching up to 1,000 horsepower. The increased volume significantly dampens backpressure pulses created by larger fuel injectors, ensuring stable pressure at the injector seat even in high-demand scenarios. This rail is CNC-machined from 6061-T6 billet aluminum and finished with a durable black anodizing and laser engraving for a professional, corrosion-resistant finish.

Installation is straightforward as it is designed to work with the factory fuel line using the included custom fitting. For those running upgraded fuel systems, the rail ends are pre-tapped to accept -6 AN or 9/16"x18 fittings. An additional 1/8 NPT port is integrated for easy installation of a fuel pressure gauge or a nitrous fuel pick-up.

• 1/2-inch fuel bore supports up to 1,000 HP and dampens injector pulses
• CNC-machined from billet aluminum with black anodized finish and laser engraving
• Integrated 1/8 NPT port for fuel pressure gauges or nitrous accessories
• Pre-tapped ends for -6 AN or 9/16"x18 custom fuel line fittings
• Designed for use with factory or custom fuel lines
• Complete kit includes hardware, fittings, and injector O-rings
• Manufactured and assembled in the USA
• Manufacturer Part Number: 25-100BK

Fits 2008-2021 Subaru WRX STI.

The Cobb Tuning Fuel Rails (MPN 343150) are engineered to resolve fuel delivery imbalances common in the factory Subaru fuel system. By providing a larger internal bore and more consistent flow characteristics, these rails ensure that every cylinder receives the precise fuel volume required during high-boost and high-load conditions. This is a critical upgrade for enthusiasts looking to push their EJ25 engine beyond stock power levels safely.

• CNC-machined from 6061-T6 aluminum for superior strength and precise fitment.
• Large internal bore diameter minimizes pressure drops and increases fuel dampening volume.
• Hard-anodized finish ensures long-term durability and resistance to corrosive fuel additives.
• Specifically designed for top-feed fuel injector configurations.
• Includes all necessary mounting hardware to bolt directly to factory locations.