2004 Subaru WRX Performance Fuel Systems

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    • AEM® High Flow In-Tank Fuel Pump
      (0 reviews)
      # 11142956
      Subaru WRX 2004, High Flow In-Tank Fuel Pump by AEM®. 320LPH at 43PSI. This fuel pump is designed for in-tank mounting for use with gasoline and features a compact 38mm diameter that fits most applications. It has an offset inlet...
      Designed for high output naturally aspirated and forced induction EFI vehiclesIn tank design
      $101.98 - $122.99
    • Aeromotive® 340 Stealth Fuel Pump, Offset Inlet, Inline
      (0 reviews)
      # 85633585
      Subaru WRX / WRX STI 2004, 340 Stealth Fuel Pump, Offset Inlet, Inline by Aeromotive®. Includes Pump, Universal Drop Parts Kit (Filter, Wiring Pigtail, Rubber Hose, One Pair Clamps, Rubber Grommet). The Aeromotive 340 Stealth Fuel...
      Fits most vehicles where popular aftermarket pumps are applicableE85 Compatible
      $187.97
    • HKS® Al-Type Fuel Pump
      (0 reviews)
      # 70194043
      Subaru WRX STI EJ257 Engine 2004, Al-Type Fuel Pump by HKS®. Diameter: 38 mm. Length: 114 mm. Flow Rate: 250 LHP. HKS Fuel Pump's distinguished flow characteristics enable a stable fuel pressure and fuel supply to tuned vehicles,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $276.12
    • Aeromotive® Billet Fuel Rail
      (0 reviews)
      # 85634480
      Subaru WRX 2004, Billet Fuel Rail by Aeromotive®, 1 Pair. Includes Hardware. Designed utilizing the latest technology, this product by Aeromotive features premium quality and will perform better than advertised. Perfect for your...
      $220.59
    • Aeromotive® Return-Style Fuel Rail System
      (0 reviews)
      # 85634483
      Subaru WRX 2004, Return-Style Fuel Rail System by Aeromotive®. Designed utilizing the latest technology, this product by Aeromotive features premium quality and will perform better than advertised. Perfect for your vehicle and...
      $894.61 - $896.22
    • Agency Power® Black Fuel Rail Kit
      (0 reviews)
      # 94683170
      Subaru WRX 2004, by Agency Power®. The fuel rail has the largest bore currently on the market which results in better fuel flow then stock. As well, the Agency Power rail is designed to fit larger injectors, when upgrading to a...
      $400.00 - $500.00
    • Injector Dynamics® ID725 Fuel Injector
      (0 reviews)
      # 62402459
      Subaru WRX 2004, ID725 Fuel Injector by Injector Dynamics®. The ID725 exists for those applications where the ID1000 is just a little bit too big, and will maintain strict linearity at flow rates that will satisfy even the smallest...
      $120.00 - $670.00
    • Injector Dynamics® ID850 Fuel Injector
      (0 reviews)
      # 62402462
      Subaru WRX 2004, ID850 Fuel Injector by Injector Dynamics®. Length: 48mm. The ID850 was added to the Injector Dynamics lineup to fill the need for a high flow injector in a small package. Specifically, GM’s LS motors, and various...
      $120.00 - $690.00
    • Injector Dynamics® ID1000 Fuel Injector
      (0 reviews)
      # 98418135
      Subaru WRX 2004, ID1000 Fuel Injector by Injector Dynamics®. Length: 48mm. O-Ring type: 11mm Upper, Dash 204 Lower Square, Denso Square Lower. The ID1000 was the first offering from Injector Dynamics, and was also the first to...
      $120.00 - $480.00
    • Injector Dynamics® ID1300 Fuel Injector
      (0 reviews)
      # 62402453
      Subaru WRX 2004, ID1300 Fuel Injector by Injector Dynamics®. Length: 48mm. The ID1300 is an all new injector, designed in partnership with Bosch Motorsport. This collaboration has given us the ability to design a high flow injector...
      $224.61 - $1,090.00
    • Injector Dynamics® ID1700 Fuel Injector
      (0 reviews)
      # 98418139
      Subaru WRX 2004, ID1700 Fuel Injector by Injector Dynamics®. Length: 48mm. The ID1700 is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport. The ID1700 was designed to fill the gap between the...
      $250.00 - $1,190.00
    • Injector Dynamics® ID2000 Fuel Injector
      (0 reviews)
      # 62402456
      Subaru WRX 2004, ID2000 Fuel Injector by Injector Dynamics®. Length: 48mm. The ID2000 has set the standard for linearity and control in a large injector. Flowing in excess of 2000cc/min at 3 bar, the ID2000 will also provide a...
      $240.00 - $1,150.00
    • PERRIN Performance® Top Feed Style Fuel Rail
      (0 reviews)
      # 75117161
      Subaru WRX 2004, Top Feed Style Fuel Rail by PERRIN Performance®. The PERRIN High-Flow Fuel rails are designed to deliver large amounts of fuel equally to each cylinder. Consumers running big horsepower that require large injectors...
      Large inside diameter channels for maximum fuel flowEqual fuel distribution, pressure, and more consistent air fuel ratio
      $499.50
    • AVO® Throttle Controller
      (0 reviews)
      # 93466887
      Subaru WRX 2004, Throttle Controller by AVO®.
      $199.00
    • AVO® Turbo Timer
      (0 reviews)
      # 93466889
      Subaru WRX 2004, Turbo Timer by AVO®.
      $149.99
    • DeatschWerks® Install Kit for Electric Fuel Pumps DW200™ and DW300™
      (0 reviews)
      # 24840744
      Subaru WRX / WRX STI 2004, Install Kit for Electric Fuel Pumps DW200™ and DW300™ by DeatschWerks®. Get the most out of your electric fuel pump by ensuring it gets the voltage it needs with this hardware installation kit. It's...
      Provides a high flow fuel pump with the required voltage15 inch of 12 ga SLX spec red power cable
      $22.00
    • Radium® Top Feed Fuel Rail Adapter
      (0 reviews)
      # 98837500
      Subaru WRX 2004, Top Feed Fuel Rail Adapter by Radium®. This adapter was specifically designed for the long runner (no tumble generator valves) intake manifold found on the JDM STi Spec C engines. Both adapters have a machining...
      $47.45 - $56.95
    • Radium® Top Feed Fuel Rail Conversion Kit
      (0 reviews)
      # 98837506
      Subaru WRX STI 2004, Top Feed Fuel Rail Conversion Kit by Radium®. This fuel rail kit converts the OEM side feed fuel injector setup to top feed, allowing the use of high flow fuel injectors (not included). The fuel rail injector...
      $237.95 - $284.95
    • Injector Dynamics® Adaptor Top
      (0 reviews)
      # 84612397
      Universal Adaptor Top by Injector Dynamics®.
      $11.95
    • HKS® F-Con V Pro Harness
      (0 reviews)
      # 70194017
      Subaru WRX With GDA Chassis 2004, F-Con V Pro Harness by HKS®. Type: FP5-7. Designed utilizing the latest technology, this product by HKS features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $474.01
    • Cusco® Throttle Body Hose
      (0 reviews)
      # 89622671
      Subaru WRX / WRX STI 2004, Throttle Body Hose by Cusco®.
      $48.60
    • Torque Solution® Thermal Throttle Body Gasket
      (0 reviews)
      # 61628487
      Subaru WRX 2004, Thermal Throttle Body Gasket by Torque Solution®. Thermal Throttle Body Gasket use a proprietary gasket material that lowers intake temps by reducing heat transfer. These gaskets can be used to replace factory...
      $26.87
    • Radium® Injector Seats
      (0 reviews)
      # 89034562
      Subaru WRX STI 2004, Injector Seats by Radium®. These are the same machined aluminum injector seats used in Radium fuel rail kits for Subarus. They are required when converting an OEM side feed fuel rail to top feed. They simply...
      $47.45 - $71.20
    • Injector Dynamics® Injector Connector Kit
      (0 reviews)
      # 84612410
      Universal Injector Connector Kit by Injector Dynamics®.
      $6.00 - $7.00
    • Injector Dynamics® Injector O-Ring
      (0 reviews)
      # 84612444
      Universal Injector O-Ring by Injector Dynamics®.
      $1.00 - $1.50
    • Airtex® Electric Fuel Pump
      (0 reviews)
      # 22542894
      Subaru WRX / WRX STI 2004, Electric Fuel Pump by Airtex®. This electric fuel pump is engineered by a recognized OEM supplier utilizing the latest advancements in fuel delivery technology. Advanced materials, improved brushes and...
      Meets or exceeds OEM quality standardsFactory-like fit, function, and dependability
      $240.97
    • Denso® Fuel Pump and Strainer Set
      (0 reviews)
      # 85802691
      Subaru WRX 2004, Fuel Pump and Strainer Set by Denso®. If your vehicle is hard to start, lacks power for overtaking, or stalls frequently, it might be time to check the fuel pump. And if it needs replacement, you can't do better...
      Turbine Technology - Delivers fuel with minimal pressure pulsation for quieter operationArmature - Ultra-high balanced to minimize noise and vibration
      $109.75
    • Genuine® Fuel Pump Assembly
      (0 reviews)
      # 88047487
      Subaru WRX 2004, Fuel Pump Assembly by Genuine®. Includes Primary Sending Unit, Fuel Screen, And Tank Seal. ** Alleged Fuel Pump Failures Can Often Be Traced To A Faulty Fuel Pressure Regulator Instead Of (Or In Addition To) Pump...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $377.21
    • Hitachi® Electric Fuel Pump
      (0 reviews)
      # 87857225
      Subaru WRX 2004, Electric Fuel Pump by Hitachi®. In-Tank. Complete Modeule. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      $286.16
    • Pilot® Electric Fuel Pump
      (0 reviews)
      # 17990574
      Subaru WRX STI 2.5L 2004, Electric Fuel Pump by Pilot®. Original Equipment proved, patented in-house design technology, from a certified manufacture guarantee exacting fit, form & function with every unit. Superior components...
      Helps you to get the most out of your vehiclePrecision designed to perfectly fit your vehicle
      $41.26
    • Replace® Electric Fuel Pump
      (0 reviews)
      # 84816230
      Subaru WRX / WRX STI 2004, Electric Fuel Pump by Replace®. New Strainer Required For Warranty. This is an aftermarket part that replaces factory OE # ATXE8335. No or low fuel pressure may be caused by a faulty pump, which would in...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $36.80
    • Spectra Premium® Fuel Pump Sender Assembly
      (0 reviews)
      # 22799758
      Subaru WRX 2004, Fuel Pump Sender Assembly by Spectra Premium®. Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel pump sender assemblies meet or exceed the performance of the...
      Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertiseProduct come with installation instructions, wiring harness and installation hardware where applicable
      $408.81
    • Genuine® Fuel Pressure Regulator
      (0 reviews)
      # 88054861
      Subaru WRX 2004, Fuel Pressure Regulator by Genuine®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $113.99 - $132.05
    • Beck Arnley® Fuel Injector
      (0 reviews)
      # 36253735
      Subaru WRX 2004, Fuel Injector by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $47.95 - $77.53
    • Denso® Fuel Injector
      (0 reviews)
      # 21070230
      Subaru WRX 2004, Fuel Injector by Denso®. O.E. Replacement Fuel Injector. When a vehicle uses Denso First Time Fit fuel injectors, the engine runs smoother, improves gas mileage, and produces fewer emissions. Denso First Time Fit...
      Maintains new-car smoothness and drivabilityFirst Time Fit™ saves valuable shop time
      $70.31
    • Hitachi® Fuel Injector
      (0 reviews)
      # 22063683
      Subaru WRX STI 2.5L 2004, Fuel Injector by Hitachi®. This is an aftermarket part that replaces factory OE # 16600-AA170. This fuel injector will replace your malfunctioning part to restore reliable vehicle operation, gas mileage,...
      Disperses fuel accurately to meet optimal power, economy, and emissions requirementsMeets or exceeds OE specifications
      $115.96
    • Beck Arnley® Fuel Filter
      (0 reviews)
      # 35806667
      Subaru WRX 2004, Fuel Filter by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $24.44
    • FRAM® In-Line Gasoline Fuel Filter
      (0 reviews)
      # 103943201
      Subaru WRX / WRX STI 2004, In-Line Gasoline Fuel Filter by FRAM®. Inlet Diameter: 9.5mm Tube Connector; Overall Diameter: 2.56"; Height: 4.72". Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when...
      Quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $23.33
    • Genuine® Fuel Filter
      (0 reviews)
      # 44711905
      Subaru WRX STI 2004, Fuel Filter by Genuine®. Located on top of Fuel Pump. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $102.46
    • Genuine® Fuel Filter
      (0 reviews)
      # 88047460
      Subaru WRX STI 2.5L 2004, Fuel Filter by Genuine®. Location: On Top of Fuel Pump. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $102.46
    • Hastings® In-Line Fuel Filter
      (0 reviews)
      # 21461216
      Subaru WRX 2.5L 2004, In-Line Fuel Filter by Hastings®. This filter is designed to protect fuel system components, such as injection pumps and injectors, from damaging contaminants, including water, bacteria, non-combustible...
      Meets or exceeds all filtration requirements of the applicationExtends fuel system component life
      $20.35
    • Mahle® Fuel Filter
      (0 reviews)
      # 8542281
      Subaru WRX 2004, Fuel Filter by Mahle®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you waste your time...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $22.75
    • NPN® Fuel Filter
      (0 reviews)
      # 8725102
      Subaru WRX 2004, Fuel Filter by NPN®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $45.24
    • WIX® Complete In-Line Fuel Filter
      (0 reviews)
      # 97528482
      Subaru WRX 2004, Complete In-Line Fuel Filter by WIX®. Height: 4.724". Inlet: 8 MM. Inner Diameter Top: Closed. MediaType: Cellulose. Micron: 17.00. Outer Diameter Top: 3.346". Outlet: 8 MM. Style: Fuel (Complete In-Line) Filter....
      Provides highly efficient and unmatched fuel cleansing performanceProtects advanced fuel injection systems from contaminants
      $22.09
    • Airtex® Fuel Pump Strainer
      (0 reviews)
      # 22650167
      Subaru WRX / WRX STI 2004, Fuel Pump Strainer by Airtex®. Push Fit Inlet. This electric fuel pump is engineered by a recognized OEM supplier utilizing the latest advancements in fuel delivery technology. Advanced materials,...
      Meets or exceeds OEM quality standardsFactory-like fit, function, and dependability
      $17.58
    • Denso® Electric Fuel Pump
      (0 reviews)
      # 21070431
      Subaru WRX 2004, Electric Fuel Pump by Denso®. If your vehicle is hard to start, lacks power for overtaking, or stalls frequently, it might be time to check the fuel pump. And if it needs replacement, you can't do better than...
      Turbine Technology - Delivers fuel with minimal pressure pulsation for quieter operationArmature - Ultra-high balanced to minimize noise and vibration
      $78.48
    • Denso® Fuel Pump Strainer
      (0 reviews)
      # 85802692
      Subaru WRX 2004, Fuel Pump Strainer by Denso®. If your vehicle is hard to start, lacks power for overtaking, or stalls frequently, it might be time to check the fuel pump. And if it needs replacement, you can't do better than...
      Turbine Technology - Delivers fuel with minimal pressure pulsation for quieter operationArmature - Ultra-high balanced to minimize noise and vibration
      $17.76
    • Spectra Premium® Fuel Pump Strainer
      (0 reviews)
      # 90606141
      Subaru WRX 2004, Fuel Pump Strainer by Spectra Premium®. Left unprotected, dirt and debris could quickly destroy an electric fuel pump. The fuel pump strainer is the pump’s first line of defense, preventing dirt, debris, and...
      Designed to protect the fuel pump and prevent fuel system contaminationEngineered to stringent tolerances
      $13.41
    • Spectra Premium® Fuel Shut-Off Valve
      (0 reviews)
      # 103893540
      Subaru WRX / WRX STI 2004, Fuel Shut-Off Valve by Spectra Premium®. Just like a rusted fuel tank, a corroded filler neck can also lead to premature fuel pump failure, clogged filter and injectors, and performance issues. This...
      Dual coated for enhanced corrosion protectionPrevents fuel contamination and pressure and fuel leaks
      $40.22 - $83.81
    • Gates® Locking Fuel Tank Cap
      (0 reviews)
      # 20828367
      Subaru WRX / WRX STI 2.0L 2004, Locking Fuel Tank Cap by Gates®. As Required. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $12.93
    • Gates® Replacement Fuel Tank Non-Locking Cap
      (0 reviews)
      # 20828368
      Subaru WRX / WRX STI 2.0L 2004, Replacement Fuel Tank Non-Locking Cap by Gates®. As Required. Rugged, heavy-duty construction. Meet or exceed OEM specifications. Caps fit both shallow and deep cam filler necks - vented, non-vented...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $5.97
    • Replace® Fuel Tank Strap
      (0 reviews)
      # 84817095
      Subaru WRX / WRX STI 2004, Fuel Tank Strap by Replace®. This is an aftermarket part that replaces factory OE # 671607134117, 42172AA181, 42172AA161. Fuel tank straps retain the fuel tank to the vehicle. In their location underneath...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $100.74
    • Spectra Premium® Fuel Tank Strap Kit
      (0 reviews)
      # 22802337
      Subaru WRX / WRX STI 2004, Fuel Tank Strap Kit by Spectra Premium®. Designed to replace worn, rusted, or missing straps, this fuel tank strap kit will help to keep your fuel tank in place ensuring its secure installation....
      Designed to keep your fuel tank in placeSame quality as OE for less money
      $90.41
    • Standard® Intermotor™ Fuel Injection Pressure Damper
      (0 reviews)
      # 45113949
      Subaru WRX / WRX STI 2004, Intermotor™ Fuel Injection Pressure Damper by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $44.62
    • Standard® Intermotor™ Fuel Injection Pressure Regulator
      (0 reviews)
      # 45264034
      Subaru WRX 2004, Intermotor™ Fuel Injection Pressure Regulator by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $90.24 - $91.81
    • Original Equipment® Fuel Injector
      (0 reviews)
      # 97340957
      Subaru WRX 2004, Fuel Injector by Original Equipment®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $135.52
    • Standard® Intermotor™ Fuel Injector
      (0 reviews)
      # 45264019
      Subaru WRX 2004, Intermotor™ Fuel Injector by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $73.74 - $103.59
    • Aeromotive® 10 Micron Marine Series Fuel Filter, AN-12 (12341)
      (0 reviews)
      # mpn1803704734
      Universal 10 Micron Marine Series Fuel Filter, AN-12 by Aeromotive®. Commonly the most overlooked component in a fuel system, filter neglect can be the most costly. If not cleaned or replaced regularly, filter elements can become...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $202.53
    • Aeromotive® 340 Stealth E85 Compatible Fuel Pump
      (0 reviews)
      # 98075557
      Universal 340 Stealth E85 Compatible Fuel Pump by Aeromotive®. The Aeromotive 340 Stealth Fuel Pump is a high-output, in-tank, electric fuel pump that fits most popular EFI applications. The Aeromotive 340 is a compact, lightweight...
      Fits most vehicles where popular aftermarket pumps are applicableE85 Compatible
      $124.34
    • Aeromotive® 340 Stealth Fuel Pump
      (0 reviews)
      # 98075560
      Universal 340 Stealth Fuel Pump by Aeromotive®. The Aeromotive 340 Stealth Fuel Pump is a high-output, in-tank, electric fuel pump that fits most popular EFI applications. The Aeromotive 340 is a compact, lightweight pump that...
      Fits most vehicles where popular aftermarket pumps are applicableE85 Compatible
      $124.34




    Guides & Articles

    • Replacement Fuel System Parts
      How To Replace An In-Tank Fuel Sending Unit
      A Fuel tank sending unit is a term for the mechanical assembly inside your fuel tank which measures the level of liquid in the tank, then reports its findings to the fuel gauge on your instrument cluster. All sending units contain a "float" piece which does just what it describes - floats atop the surface of the fuel. Many automakers design the float piece as an attachment on a hinged arm that pivots as the level in the tank rises or drops. Others design the float piece as a cylinder that rides up and down around a metal shaft.
    • Replacement Fuel System Parts
      How To Replace Fuel Injectors
      Fuel injectors spray fuel directly into your engine’s cylinders during the intake stroke when a piston moves down to allow air and fuel to fill the cylinder chamber. When injectors are malfunctioning, leaking, or have failed completely, they will cause rough engine performance, poor idle, reduced power and economy, and exhaust that’s rich enough in unburned fuel to damage expensive exhaust parts such as oxygen sensors and catalytic converters.
    • Performance Chips
      Why Should I Add a Throttle Controller?
      The throttle controller will basically bypass the computer in the vehicle. It is designed to take the information right from the accelerator position sensor and compile it in a high speed controller circuit that compiles the signal sent from the Accelerator position sensors. With this controller you are able to program it to different options and the throttle response timing will be noticeably faster.

    Popular Products

    2004 Subaru WRX Performance Fuel Systems Reviews

    Average rating:  5  5 - 7 reviews
    4.8 of 5
    High Performance
    I was looking for a high-performance carburetor and I finally found one. This product operates at its maximum performance level. The carburetor features the impeccable design. Its construction is extremely durable. The quality of the product is well worth it.
    MPosted by Mark (Vero Beach, FL) /
    Was this review helpful for you? Yes
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    2004 Subaru WRX Models
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