The Aeromotive 13134 Extreme Flow EFI Regulator is engineered to manage high-volume fuel delivery in high-performance EFI systems. This regulator is specifically optimized for use with Aeromotive Eliminator, Pro Pump, and Dual A1000 fuel systems. Featuring a massive 0.313-inch high-flow valve and seat assembly, it is capable of handling fuel pumps with outputs ranging from 3 to 9 GPM.

Built with a compact 2-port body, the 13134 includes dual AN-10 inlet/outlet ports and one AN-10 bypass (return) port. The regulator utilizes a dual-spring design to provide a wide operating pressure range without increasing the physical footprint or weight. It includes a standard spring for base pressures of 30-75 PSI and a high-pressure spring for 75-120 PSI. For forced induction applications, it provides a precise 1:1 vacuum/boost reference ratio.

• Manufacturer Part Number: 13134
• Inlet/Outlet Ports: Dual AN-10
• Return/Bypass Port: AN-10
• Valve/Seat Size: 0.313" High Flow
• Flow Capacity: Supports 3-9 GPM pumps
• Adjustable Pressure Range: 30-75 PSI (Standard) or 75-120 PSI (High Pressure)
• Reference: 1:1 Vacuum/Boost reference

The Aeromotive 13133 Extreme Flow EFI Regulator is engineered specifically for high-volume fuel systems utilizing belt or hex drive fuel pumps. Featuring an expanded 5-port body and a massive 0.500-inch high-flow valve and seat assembly, this regulator is capable of managing high-output fuel pumps with flow rates ranging from 7 to 26 GPM.

Equipped with a dual-spring design, this unit maintains a low profile and reduced weight while offering an exceptionally broad operating range. The pre-installed standard spring supports base pressures from 30-75 PSI, while the included high-pressure spring extends that range from 75-120 PSI. It provides a true 1:1 vacuum and boost reference ratio for precise fuel management under forced induction.

• Manufacturer Part Number: 13133
• Inlet Port: (1) AN-10
• Outlet Ports: (4) AN-08
• Return/Bypass Port: (1) AN-10
• Valve/Seat Size: 0.500 inch
• Flow Rating: 7-26 GPM
• Pressure Range: 30-120 PSI (standard and high-pressure springs included)
• Reference: 1:1 Vacuum/Boost

The Aeromotive 13132 High-Flow Fuel Pressure Regulator provides precise fuel pressure management for high-horsepower applications. Engineered to handle high-volume fuel systems, this regulator features a massive .500-inch internal valve specifically designed to prevent pressure creep by efficiently bypassing excess fuel back to the tank.

• Adjustable pressure range from 30 to 120 PSI
• High-flow .500-inch internal valve/orifice
• Dual AN-10 inlet ports and one AN-10 bypass port
• CNC-machined from 6061-T6 billet aluminum for durability
• Compatible with gasoline, E85, and alcohol-based fuels
• Ideal for use with high-volume electric or belt-driven fuel pumps
• Manufacturer Part Number: 13132

The Aeromotive A1000-6 Injected Bypass Regulator (MPN 13131) provides precise, adjustable fuel pressure control for high-performance EFI systems. This bypass-style regulator is engineered to handle high-flow fuel pumps, maintaining consistent rail pressure by returning excess fuel to the tank, which helps prevent pump overheating and cavitation.

• Bypass design ensures superior pressure stability and fuel pump longevity
• CNC-machined from 6061-T6 billet aluminum for precision and durability
• Two -6 AN ORB inlet ports and one -6 AN ORB return port
• Adjustable EFI pressure range to suit various performance fuel injection requirements
• Black anodized finish for maximum corrosion resistance
• Manufacturer Part Number: 13131

The Aeromotive 13130 kit is a high-performance fuel management solution centered around the race-proven A1000 EFI Bypass Regulator. Designed to handle high-flow fuel pumps and demanding street or track conditions, this kit utilizes aerospace-grade tolerances and meticulous engineering to maintain precise, stable fuel pressure at the rail.

• CNC-machined billet aluminum construction for maximum durability and corrosion resistance
• Bypass design ensures consistent pressure regulation even under fluctuating loads
• Comprehensive kit includes the A1000 regulator and necessary adapter fittings
• Engineered for EFI applications requiring high-volume fuel delivery
• Manufacturer Part Number: 13130

The Aeromotive 13129 EFI Bypass Regulator provides professional-grade fuel pressure management in a compact, lightweight package designed for high-performance EFI applications. Capable of supporting up to 1000 HP, this regulator is engineered to handle high-flow fuel pumps while fitting into tight engine bays where space is limited. It features a base pressure range of 40-75 psi and maintains a consistent 1:1 fuel pressure rise in response to manifold boost.

Constructed from CNC-machined 6061 T6 billet aluminum and finished in a durable bright dip black anodizing, this unit offers both aesthetic appeal and long-term corrosion resistance. The bypass design ensures stable rail pressure by returning excess fuel to the tank, making it an ideal choice for aggressive street machines and track builds.

• Manufacturer Part Number: 13129
• Material: CNC-machined 6061 T6 billet aluminum
• Inlet/Outlet Ports: Two (2) -06 ORB
• Return Port: One (1) -06 ORB
• Gauge Port: 1/8-inch NPT
• Adjustment Range: 40-75 PSI base pressure
• Boost Reference: 1:1 manifold pressure ratio
• Horsepower Rating: Supports up to 1000 HP
• Finish: Bright dip black anodized
• Vacuum boost port included

The Aeromotive 13128 is a high-flow adjustable EFI fuel pressure regulator engineered for medium to high horsepower applications. Designed for both street and track use, this regulator provides precise pressure control and features a bright dip black anodized finish. It supports a base pressure range of 40-75 psi and includes a vacuum/boost port for a 1:1 rising rate ratio.

• Manufacturer Part Number: 13128
• Inlet Ports: (2) -10 ORB
• Return Port: (1) -06 ORB
• Gauge Port: 1/8-inch NPT
• Adjustable Pressure Range: 40-75 psi
• Boost Reference: 1:1 Ratio
• Fuel Compatibility: Gasoline and alcohol/ethanol
• Finish: Bright Dip Black Anodized

The Aeromotive 13113 Belt Drive EFI Regulator is an ultra-high flow solution engineered specifically for high-output engines utilizing mechanical belt-drive or hex-drive fuel pumps. Designed to manage extreme fuel volume, this regulator is capable of supporting up to 4,000 HP on gasoline and is fully compatible with both gasoline and methanol fuel systems. It is the ideal choice for any mechanically driven EFI setup delivering over 200 GPH at EFI pressures.

This regulator features a 1:1 vacuum/boost reference ratio and includes two distinct boost line adapters: a barbed fitting for standard rubber hoses and an AN-04 adapter for braided lines to prevent blow-off in high-boost applications. Integrated ports accommodate nitrous fuel supplies, pressure gauges, and data transducers for comprehensive system monitoring.

• Base pressure adjustable from 40-100 PSI
• (4) ORB-08 inlet ports and (1) ORB-10 inlet port
• (1) ORB-10 return port
• Compatible with gasoline and methanol fuels
• Supports up to 4,000 HP on gasoline
• Includes barbed and AN-04 boost line adapters
• Manufacturer Part Number: 13113

The Aeromotive 13110 Pro-Series EFI Boost Reference Regulator is engineered for high-horsepower EFI applications, capable of supporting fuel delivery for engines up to 2000 HP. Designed for high-volume and high-pressure systems, it is an ideal match for Aeromotive Pro-Series, Brushless 3.5, and Brushless 5.0 electric pumps, as well as 6-GPM mechanical pumps. The regulator provides a stable 1:1 vacuum/boost reference ratio to ensure precise fueling under load.

• Pressure Range: Adjustable 30-75 PSI (standard spring) or 75-125 PSI (included high-pressure spring)
• Inlet Ports: Three ORB-08 and one ORB-10 inlet ports for versatile plumbing
• Return Port: One ORB-10 return port
• Included Hardware: Two AN-08 flare adapters, one AN-10 flare adapter, port plugs, and two boost line adapters (barbed and AN-04)
• Auxiliary Port: Dedicated 1/8-inch NPT port for pressure gauges or transducers
• Construction: Electroless nickel-plated body for corrosion resistance with a Type II black anodized cap
• Part Number: 13110

The Aeromotive A1000-6 Injected Bypass Adjustable EFI Regulator (MPN 13109) is engineered for medium to high horsepower builds requiring precise fuel management. Featuring a high-flow internal design, this regulator handles both gasoline and alcohol-based fuels while maintaining a stable base pressure between 40 and 75 PSI. The integrated vacuum/boost port provides a true 1:1 compensation ratio, making it an ideal choice for forced induction or high-performance naturally aspirated EFI systems.

• Manufacturer Part Number: 13109
• Adjustable Base Pressure: 40-75 PSI
• Boost/Vacuum Reference Ratio: 1:1
• Inlet Ports: (2) ORB-06
• Return Port: (1) ORB-06
• Gauge Port: 1/8-inch NPT
• Fuel Compatibility: Gasoline and alcohol
• Application: Medium to high horsepower EFI systems

Fits select 1994-1997 Chevrolet Camaro, Impala SS, and Pontiac Firebird (3.1L / 3.4L).

Designed for precise fuel management, the Aeromotive 13107 Billet LT1 Regulator allows you to fine-tune your fuel system to match your engine's specific requirements. This rail-mount EFI regulator replaces the factory unit, providing a stable 30-70 PSI adjustment range. It features a 1:1 ratio for boost-referenced applications, ensuring fuel pressure rises at the same rate as manifold pressure for forced induction setups.

Constructed from CAD-designed and CNC-machined billet aluminum, this regulator is built for durability and consistent performance. The internal stainless steel spring is custom-engineered for exact pressure control, eliminating the variance common with stock stamped-steel regulators. For those upgrading their fuel system, the return adapter can be replaced with Aeromotive P/N 15606 to accommodate a -06 AN return line.

• Manufacturer Part Number: 13107
• Adjustment Range: 30-70 PSI
• Ratio: 1:1 Boost Reference
• Material: CNC-machined billet aluminum
• Spring: Stainless steel for precise control
• Mounting: Direct rail mount
• Compatibility: Compatible with factory fuel rails; adaptable to -06 AN return with P/N 15606

The Aeromotive 13105 Compact Billet Adjustable EFI Fuel Pressure Regulator is engineered for high-performance applications where engine bay space is limited. Capable of supporting fuel systems for engines up to 1,000 HP, this regulator is the ideal solution for EFI delivery systems designed with a single inlet port. It utilizes a 1:1 boost reference ratio, providing a precise increase in fuel pressure relative to manifold pressure for forced induction setups.

• Adjustable from 30 to 70 PSI
• Includes removable AN-06 male fittings for both inlet and return ports to simplify plumbing
• Equipped with a dedicated 1/8" NPT gauge port opposite the side inlet
• CNC-machined billet aluminum construction for durability and pressure stability
• 1:1 manifold pressure reference ratio
• Manufacturer Part Number: 13105

Fits 1986-1995 Ford Mustang GT, LX, SVO, GTS, and SVT Cobra.

The Aeromotive 13103 Billet Adjustable Fuel Pressure Regulator is a high-performance solution for enthusiasts needing precise control over their fuel system. Designed to bolt directly to the factory fuel rail, this regulator replaces the fixed-pressure OEM unit, allowing you to fine-tune rail pressure to accommodate engine modifications and optimize air-fuel ratios.

Engineered with aerospace-grade tolerances, this regulator is CNC-machined from 6061 T6 billet aluminum for exceptional durability and a professional finish. It provides the reliable, stable pressure regulation required for both naturally aspirated and forced induction Ford platforms.

• Direct bolt-on installation to factory Ford fuel rails
• CNC-machined 6061 T6 billet aluminum construction
• Fully adjustable design for precise fuel pressure tuning
• Manufactured to aerospace-grade tolerances for maximum reliability
• Manufacturer Part Number: 13103

Fits select 1994-1999 Ford vehicles (4.6L / 5.0L / 5.4L).

The Aeromotive 13102 Billet Adjustable Fuel Pressure Regulator is engineered to handle the increased fueling demands of high-performance Ford engines. Designed for a straightforward installation, this unit bolts directly to the factory fuel rail, replacing the non-adjustable stock regulator to provide precision tuning of your fuel system.

CNC-machined from billet aluminum for durability, this regulator features a custom-designed stainless steel spring that ensures accurate fuel control across the entire pressure range. It utilizes a 1:1 vacuum/boost reference ratio, providing a pound-for-pound increase in fuel pressure relative to manifold boost—critical for maintaining safe air-fuel ratios in forced induction applications.

• Part Number: 13102
• Adjustable range: 30-70 PSI
• 1:1 fuel pressure rise ratio for boost reference
• Integrated 1/8-inch NPT gauge port
• Direct-fit mounting for stock Ford fuel rails
• Includes installation hardware (O-rings and gaskets)

The Aeromotive A1000 Adjustable EFI Bypass Regulator is engineered for medium to high horsepower applications, providing the high-flow capacity and precise pressure control required for demanding street and track environments. This regulator is designed to maintain consistent fuel rail pressure even under extreme conditions, featuring a vacuum/boost reference port to provide a 1:1 ratio rise in fuel pressure.

• Base pressure adjustable from 40-75 PSI
• Fuel pressure rises on a 1:1 ratio with boost/vacuum reference
• Two (2) ORB-10 inlet ports and one (1) ORB-06 return port
• Integrated 1/8" NPT gauge port
• Compatible with gasoline, ethanol (E85), and alcohol-based fuels
• High-flow design suitable for medium to high horsepower EFI systems
• Manufacturer Part Number: 13101

Maintain consistent fuel pressure and restore the performance of your Aeromotive regulator with the Aeromotive 13009 Fuel Pressure Regulator Repair Kit. Designed specifically for servicing and rebuilding high-performance fuel systems, this kit ensures your regulator continues to operate within precise aerospace-grade tolerances.

This genuine Aeromotive service kit provides the essential internal components to refresh a worn or leaking regulator, helping to eliminate erratic fuel pressure and potential engine performance issues. It is engineered as a direct replacement for the internal assemblies of the 13301 and 13351 series regulators.

• Direct repair kit for Aeromotive 13301 and 13351 regulators
• Restores precise fuel pressure control and stability
• Manufactured to exacting aerospace-grade tolerances and procedures
• Includes necessary internal service components for a complete refresh
• Manufacturer Part Number: 13009

Restore the precision and reliability of your fuel system with the Aeromotive 13006 Carbureted Fuel Pressure Regulator Service Kit. This kit provides the critical internal components needed to rebuild your existing regulator, allowing you to maintain consistent fuel delivery and eliminate issues like pressure creep or external leaks without replacing the entire unit.

Over time, diaphragms and seals can wear due to fuel exposure and high-cycle use. This service kit is engineered to Aeromotive's exacting standards to ensure a perfect fit and factory-spec performance. It is a vital maintenance solution for racers and performance enthusiasts running high-flow carbureted setups.

• Manufacturer Part Number: 13006
• Direct replacement internal components for carbureted regulators
• Restores accurate fuel pressure regulation and sealing integrity
• Designed for high-flow performance applications

Compatible Aeromotive Regulator Models:

• 13202, 13113, 13209, 13214, 13212, 13133, and 13137

Restore the precision and reliability of your Aeromotive fuel system with the 13003 EFI Fuel Pressure Regulator Service Kit. This genuine Aeromotive rebuild kit allows you to refresh internal components rather than replacing the entire regulator housing, ensuring consistent fuel pressure delivery and preventing leaks caused by worn diaphragms or seals.

Designed specifically for high-performance EFI applications, this kit includes the essential internal hardware and soft goods required to overhaul several popular Aeromotive regulator models. Using genuine Aeromotive parts ensures that tolerances and material compatibility remain consistent with the original equipment standards.

• Manufacturer Part Number: 13003
• Compatible with Aeromotive Regulator P/Ns: 13105, 13106, 13107, 13115, 13116, 13129, 13136, 13155
• Includes genuine replacement diaphragm and internal components
• Restores consistent fuel pressure regulation
• Engineered for high-pressure EFI fuel systems

Maintain the peak performance and reliability of your Aeromotive EFI fuel pressure regulator with the Aeromotive 13001 EFI Fuel Pressure Regulator Repair Kit. Over time, the internal seals and diaphragm within any fuel pressure regulator can degrade due to fuel additives, heat cycles, and general wear, leading to inconsistent fuel pressure, potential leaks, or poor engine performance.

This service kit provides the necessary components to restore precise fuel pressure regulation, ensuring your fuel system delivers consistent pressure to your injectors. By replacing worn internal components, you can extend the service life of your existing Aeromotive regulator, saving the expense of a full replacement.

• Restores optimal fuel pressure regulation
• Replaces critical internal wear components
• Ensures consistent fuel delivery

This repair kit is specifically designed for use with the following Aeromotive EFI Fuel Pressure Regulators:

• Aeromotive P/N 13101
• Aeromotive P/N 13109
• Aeromotive P/N 13114
• Aeromotive P/N 13151
• Aeromotive P/N 13159

Refer to your regulator's installation instructions for detailed rebuild procedures.

The AEM Fuel Pulse Damper (MPN 25-4002) is engineered to stabilize pressure pulsations within the fuel rail caused by the rapid opening and closing of large injectors and high-volume fuel pump operation. By smoothing these pressure waves, the damper ensures more consistent fuel delivery and improved tuning stability in high-performance applications.

Constructed from fully anodized billet aluminum with stainless steel springs and a durable fluorosilicone diaphragm, this unit is designed to withstand all fuel types. It features an integrated 1/8" NPT port, making it easy to install a mechanical pressure gauge or electronic transducer directly to the damper body.

• Pressure Range: Designed for systems operating between 40-70 PSI.
• Fittings: Includes AN6 ORB fittings for versatile plumbing options.
• Integrated Port: 1/8" NPT port for pressure sensors or gauges.
• Materials: CNC-machined billet aluminum body with stainless steel internals and fluorosilicone diaphragm.
• Fuel Compatibility: Compatible with gasoline, methanol, ethanol, and E85.

Keep your fuel system performing at its peak with the AEM Universal Adjustable Fuel Pressure Regulator Rebuild Kit (MPN 25-392). Over time, fuel regulator diaphragms can fatigue, leading to inconsistent fuel pressure and tuning issues. This comprehensive kit provides the essential internal components needed to service and refresh your AEM billet adjustable fuel pressure regulator, ensuring precise pressure management and a leak-free seal.

• Designed specifically for AEM billet adjustable fuel pressure regulators
• Restores consistent fuel pressure delivery and regulation
• Includes a single large .250-inch return orifice for high-flow capacity
• High-quality replacement diaphragm for accurate pressure response
• Replacement O-ring ensures a reliable, leak-free internal seal
• Manufacturer Part Number: 25-392

The AEM High Capacity Universal Adjustable Fuel Pressure Regulator (PN 25-305BK) is engineered for high-boost race applications and vehicles requiring high-volume fuel delivery. CNC-machined from 6061-T6 billet aluminum and finished in black anodizing, this regulator features a single large return orifice designed to prevent pressure creep even when paired with high-flow pumps.

• Adjustable Range: Equipped with a longer spring to provide a wide 40 to 130 PSI adjustment range.
• Rising Rate: 1:1 boost-dependent rising fuel pressure rate for forced induction setups.
• Port Configuration: Includes three -6AN (9/16"-18) ORB ports (two inlets, one return) and an integrated 1/8" NPT port for a fuel pressure gauge or sensor.
• Fuel Compatibility: Fully compatible with alcohol-based fuels (E85) and all race gases.
• Construction: Precision CNC-machined from 6061-T6 billet aluminum for durability under extreme conditions.

Each kit includes a universal mounting bracket, four 10-32 x 1/2" screws, and a 5mm (3/16") vacuum hose barb. This unit is protected under Patent # 6,298,828. Note: Barb fitting for the outlet port is sold separately (PN 25-390).

Fits select 1994-2000 Acura and Honda models, including Acura CL and Honda Accord, Civic, Civic del Sol, and CR-V.

The AEM 25-304BK Adjustable Fuel Pressure Regulator is engineered to provide the precise fuel delivery required for high-performance applications. Capable of supporting engines up to 1000 horsepower, this unit features patented interchangeable discharge orifices (Patent #6,298,828) that allow the regulator output to match virtually any fuel pump. It is CNC-machined from 6061-T6 billet aluminum for maximum durability and finished in a sleek black anodizing.

This regulator mounts directly to the O.E. fuel rail or an AEM High Volume Fuel Rail, making it a versatile choice for both stock and modified setups. It features a 1:1 boost-dependent rising fuel pressure rate and is fully adjustable from 20 psi up to the maximum capacity of your fuel pump. The base is tapped to accept -6 AN or 9/16"x18 fittings, and AEM includes a custom barb fitting to accommodate the factory fuel hose.

• Manufacturer Part Number: 25-304BK
• Material: 6061-T6 billet aluminum
• Adjustment Range: 20 psi to maximum pump capacity
• Pressure Ratio: 1:1 rising rate
• Port Type: Accepts -6 AN or 9/16"x18 fittings
• Included: Custom barb fitting and single large discharge orifice

Fits select 1986-2002 Honda and Acura models, including Integra, Civic, CRX, Prelude, NSX, and TL.

AEM's Adjustable Fuel Pressure Regulator (FPR) provides the high-volume fuel flow necessary for high-performance applications, capable of supporting engines up to 1000 horsepower. This regulator features patented interchangeable discharge ports that allow you to match the regulator's output to any fuel pump. CNC-machined from 6061-T6 billet aluminum, the 25-303BK is designed for durability and precision, mounting directly to the factory fuel rail or an AEM High Volume Fuel Rail.

The unit provides a 1:1 boost-dependent rising fuel pressure rate and is adjustable from 20 psi up to the maximum capacity of your fuel pump. For installation flexibility, the base is tapped to accept either -6 AN or 9/16"x18 fittings, and a custom barb fitting is included to accommodate the factory fuel hose.

• CNC-machined from 6061-T6 billet aluminum with a black anodized finish
• Adjustable from 20 psi to maximum fuel pump capacity
• Boost-dependent 1:1 rising fuel pressure rate
• Patented interchangeable discharge orifices (Patent # 6,298,828)
• Accepts -6 AN or 9/16"x18 fittings
• Mounts to O.E. fuel rail or AEM High Volume Fuel Rail
• Manufacturer Part Number: 25-303BK

The AEM Universal Adjustable Fuel Pressure Regulator (25-302BK) is engineered to provide precise fuel pressure management for high-performance applications. CNC-machined from 6061-T6 billet aluminum, this regulator is capable of supporting fuel flow for engines producing up to 1,000 horsepower. It features a 1:1 boost-dependent rising fuel pressure rate, ensuring consistent delivery under forced induction.

This universal unit is tapped to accept -6 AN or 9/16" x 18 fittings and includes a dedicated 1/8" NPT port for a fuel pressure gauge or sensor pickup. Its robust construction and wide adjustment range make it a reliable choice for racing and custom fuel systems.

• Adjustable fuel pressure range from 20 to 120 PSI
• 1:1 boost reference rising rate
• CNC-machined 6061-T6 billet aluminum construction
• Supports up to 1,000 HP fuel flow requirements
• Interchangeable discharge ports match regulator output to fuel pump capacity
• Integrated 1/8" NPT port for gauge or pressure sensor
• Patented design (Patent # 6,298,828)
• Includes mounting bracket and necessary hardware

Fits select 1996-2005 Honda Civic, Accord, S2000, CR-V, and Acura CL models.

The AEM 25-301BK Adjustable Fuel Pressure Regulator is engineered to provide precise fuel management for high-output Honda and Acura engines, capable of supporting flow for builds up to 1,000 horsepower. This unit features patented interchangeable discharge ports (U.S. Patent # 6,298,828) that enable you to match the regulator’s output to the capacity of virtually any fuel pump.

CNC-machined from 6061-T6 billet aluminum with a durable black finish, this regulator is designed for a clean installation, mounting directly to the factory fuel rail or an AEM High Volume Fuel Rail. It utilizes a boost-dependent 1:1 rising fuel pressure rate, making it an essential component for forced induction setups where maintaining a consistent pressure differential is required.

• Adjustable from 20 psi to maximum fuel pump capacity
• Precision CNC-machined 6061-T6 billet aluminum construction
• Includes interchangeable discharge orifices to match specific pump outputs
• Base tapped to accept -6 AN or 9/16"x18 fittings
• Includes custom barb fitting to accommodate factory fuel hoses
• Boost-dependent 1:1 rising fuel pressure rate
• Supports engines up to 1,000 HP
• Manufacturer Part Number: 25-301BK

The AEM 25-300BK Adjustable Fuel Pressure Regulator is engineered to provide precise fuel pressure management for high-performance tuning. Capable of supporting fuel flow for engines up to 1000 horsepower, this regulator features AEM's patented interchangeable discharge ports, allowing you to match the regulator's output to any fuel pump capacity. The unit is CNC-machined from 6061-T6 billet aluminum for durability and finished in a sleek black anodizing.

Fits select 1986-2005 Acura and Honda models, including Integra, Civic, Accord, Prelude, NSX, and S2000. This regulator mounts directly to the factory fuel rail or the AEM High Volume Fuel Rail, providing a clean installation while replacing the restrictive factory unit. It utilizes a 1:1 rising rate for boost-dependent fuel pressure increase and is adjustable from 20 psi up to the maximum capacity of your fuel pump.

• Manufacturer Part Number: 25-300BK
• Material: CNC-machined 6061-T6 billet aluminum
• Pressure Range: Adjustable from 20 psi to maximum fuel pump capacity
• Rising Rate: 1:1 boost-dependent ratio
• Fittings: Base tapped for -6 AN or 9/16"x18 fittings; includes custom barb for factory fuel hose
• Patented interchangeable discharge orifices (Patent # 6,298,828)
• Supports up to 1000 HP

Fits 2008-2021 Subaru WRX STI models, including the 2018 Type RA.

The Cobb Fuel Pressure Sensor Kit (315650) provides the critical data needed to monitor your fuel system's health in real-time. On the EJ-platform, maintaining consistent fuel pressure is vital for engine safety and performance. This kit allows the engine management system to track fuel pressure, enabling tuners to set up failsafes that protect the engine if pressure drops due to pump wear, a clogged filter, or regulator failure.

• Provides accurate fuel pressure monitoring for tuning and safety
• Integrates with factory or aftermarket fuel systems
• Includes high-quality electronic pressure sensor and application-specific wiring harness
• Essential for vehicles running Flex Fuel or high-flow fuel setups
• Manufacturer Part Number: 315650

Fits 2008-2021 Subaru STI.

The Cobb Fuel Pressure Regulator is engineered to provide precise fuel pressure management for high-performance Subaru builds. Designed specifically for use with the Cobb Fuel Rail Kit, this regulator solves the fuel delivery inconsistencies often found when upgrading from factory components. It ensures your injectors receive stable, consistent pressure across the entire RPM range, which is critical for accurate tuning and engine safety.

• Specifically designed for integration with aftermarket fuel rail kits
• Provides consistent fuel pressure regulation for stable engine performance
• Durable construction to withstand high-pressure fuel system demands
• Essential for modified fuel systems requiring precise pressure control
• Manufacturer Part Number: 315250

Fits 2008-2015 Subaru WRX STI (including Limited, Launch Edition, and Special Edition).

The Cobb Fuel Pressure Regulator Kit (MPN 315200) is a targeted solution designed to eliminate the fuel pressure stumble and oscillation issues frequently encountered in the GR and VA chassis Subaru STI. By optimizing the fuel delivery system, this kit ensures consistent fuel pressure, resulting in smoother engine performance and more predictable tuning.

• Direct replacement for the factory fuel pressure regulator
• Solves common fuel pressure oscillation/stumble issues
• Includes high-quality fuel lines and necessary mounting hardware
• Bolts to factory mounting points for a clean, professional installation
• Engineered for use with the factory fuel system or upgraded components
• Manufacturer Part Number: 315200