2003 Subaru WRX Performance Air Intake Systems

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    • Injen® IS Series Short Ram Intake System
      (1 reviews)
      # 359305
      Subaru WRX 2003, IS Series Short Ram Intake System by Injen®. The IS Series is a traditional, underhood air intake system that takes the place of your factory airbox and air filter, and the factory air intake tube. The EA Nanofiber...
      Improves airflow into the engineIncreases horsepower
      $182.12
    • Injen® RD Series Cold Air Intake System
      (0 reviews)
      # 360144
      Subaru WRX 2.0L 2003, RD Series Cold Air Intake System by Injen®. The RD Series is made for the enthusiast who wants improved mid-range power. This cold air system positions a high-flow air filter behind the bumper, where it can...
      Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle
      $278.38
    • AEM® Cold Air Intake System
      (0 reviews)
      # 55968635
      Subaru WRX 2003, Cold Air Intake System by AEM®. To deliver cooler air to the engine, this air intake system places the air filter outside the engine compartment. Cooler air is denser than warm air and so contains more oxygen,...
      Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle
      $262.99 - $286.99
    • AEM® Short Ram Air Intake System
      (0 reviews)
      # 55968640
      Subaru WRX 2003, Short Ram Air Intake System by AEM®. This system is an economical alternative to AEM's Cold Air Intake system. The Short Ram system installs easily under the hood, and on some applications outperforms the longer...
      Delivers increased performance for less costEasily installs under the hood
      $172.99 - $182.99
    • Weapon-R® Dragon Air Intake System
      (0 reviews)
      # 284476
      Subaru WRX 2003, Dragon Air Intake System by Weapon-R®. Increased airflow and air volume into your engine results in more horsepower and torque. The Dragon Air Intake System is designed to maximize airflow and engine performance....
      Custom designed and engineered for each applicationEach system is tuned to maximize engine performance output
      $177.65
    • Weapon-R® Neo-Ti Finish Secret Weapon Air Intake System
      (0 reviews)
      # 284925
      Subaru WRX 2003, Neo-Ti Finish Secret Weapon Air Intake System by Weapon-R®. The Secret Weapon Air Intake System uses patented technology to feed the engine 3 times as much air as other systems. As a result, engine performance is...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $289.00
    • Weapon-R® Secret Weapon Air Intake System
      (0 reviews)
      # 285909
      Subaru WRX Turbo L4 2003, Secret Weapon Air Intake System by Weapon-R®. The Secret Weapon Air Intake System uses patented technology to feed the engine 3 times as much air as other systems. As a result, engine performance is...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $220.15
    • aFe® Stage 2 Cold Air Intake System
      (0 reviews)
      # 926150
      Subaru WRX Sti 2.0L / 2.5L 2003, Stage 2 Cold Air Intake System by aFe®. The aFe Stage 2 Cold Air Intake System replaces your entire factory air intake system with a large high-flow aFe air filter, open element airbox/heat shield...
      $325.00
    • Takeda® Retain Polished Short Ram Air Intake System
      (0 reviews)
      # 1055382
      Subaru WRX 2003, Retain Polished Short Ram Air Intake System by Takeda®. Improve your car's performance and enhance the appearance of your engine bay with the Takeda Retain Short Ram Air Intake System. This system will increase...
      Custom designed for each applicationIncreases airflow, for gains in horsepower and torque
      $325.00
    • DC Sports® Polished Aluminum Cold Air Intake System
      (0 reviews)
      # 11019481
      Subaru WRX 2003, Polished Aluminum Cold Air Intake System by DC Sports®. DC Sports Air Intake Systems provide the best of both worlds in heat protection and improved breathability. Every kit includes a air filter that requires no...
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $182.76
    • DC Sports® Polished Aluminum Short Ram Intake System
      (0 reviews)
      # 11019527
      Subaru WRX 2003, Polished Aluminum Short Ram Intake System by DC Sports®. DC Sports Air Intake Systems provide the best of both worlds in heat protection and improved breathability. Every kit includes a air filter that requires no...
      $122.52
    • Agency Power® Short Ram Air Intake Kit
      (0 reviews)
      # 15847823
      Subaru WRX 2003, Short Ram Air Intake Kit by Agency Power®. The Agency Power is made for the enthusiast who wants maximum horsepower from a tuned cold air intake system. This cold air system positions a high-flow air filter behind...
      Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle
      $175.00
    • Mishimoto® Silicone Intakes
      (0 reviews)
      # 15875674
      Subaru WRX 2003, Silicone Intakes by Mishimoto®. The Mishimoto Silicone Intake Boot is made from a combination of high-grade silicone and heat-resistant embedded fibers for a high-quality replacement kit for your OEM rubber hoses....
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      $63.00 - $189.00
    • Spectre Performance® Panel HPR™ OE Replacement Air Filter
      (1 reviews)
      # 49225536
      Subaru WRX 2003, Panel HPR™ OE Replacement Air Filter by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $16.70
    • K&N® 33 Series Air Filter
      (1 reviews)
      # 44370988
      Subaru WRX 2003, 33 Series Air Filter by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without sacrificing...
      Improves engine airflowIncreases horsepower and acceleration
      $48.99
    • AIRAID® Panel Air Filter
      (1 reviews)
      # 436755
      Subaru WRX 2.0L 2003, Panel Air Filter by AIRAID®. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow and provides...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $56.90 - $60.90
    • GREEN FILTER® Factory Replacement Air Filter
      (0 reviews)
      # 56295888
      Subaru WRX except Turbocharged 2003, Factory Replacement Air Filter by GREEN FILTER®. Replace your factory air cleaner filter element with a Green Filter oiled-cotton filter and never buy another filter as long as you own your...
      Cleanable, reusable filter element will outlast your carTraps particles as small as 5 microns
      $48.35
    • Spectra Premium® Mass Air Flow Sensor
      (0 reviews)
      # 57167770
      Subaru WRX 2003, Mass Air Flow Sensor by Spectra Premium®. Spectra Premium’s complete line of new Mass Air Flow Sensors, featuring Ceramic PC boards to ensure premium performance and durability.
      Provide more consistent voltage to eliminate engine rough idle problemsPlatinum connector threads reduce the number of connection points for faster reaction to change
      $71.89
    • Delphi® Mass Air Flow Sensor
      (0 reviews)
      # 24558394
      Subaru WRX 2003, Mass Air Flow Sensor by Delphi®. Probe Only. When it comes to MAF sensors, communication with the ECM is key. That’s why Delphi MAF sensors use all new parts - never remanufactured parts that could harbor debris...
      Extensive coverageAvailable in a variety of bore diameters to accommodate a wide range of airflow, resulting in a robust design for electrical overloads
      $111.54
    • Spectre Performance® 3" Airflow Sensor Mount
      (1 reviews)
      # 12036601
      Subaru WRX 2003, 3" Airflow Sensor Mount by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.35
    • BTP® Panel Air Filter
      (0 reviews)
      # 69343060
      Subaru WRX H4 2.0L 2003, Panel Air Filter by BTP®. This BTP superior part helps your air intake system to provide improved airflow to ensure your engine operates at its maximum. This performance part is made from premium materials...
      Designed for the ultimate in performanceMade from premium materials
      $18.54
    • Torque Solution® Thermal Intake Manifold Gasket
      (0 reviews)
      # 61628478
      Subaru WRX 2003, Thermal Intake Manifold Gasket by Torque Solution®.
      $37.79
    • FRAM® Extra Guard™ Panel Air Filter
      (0 reviews)
      # 40170812
      Subaru WRX FI 2003, Extra Guard™ Panel Air Filter by FRAM®. Most dirt and dust enters the engine through the air filter and FRAM Extra Guard is engineered to provide twice the air filtration compared to an original filter. It...
      Provides better air filtration for improved performancePrevents damaging particles from entering your engine
      $9.24
    • Denso® Air Filter
      (1 reviews)
      # 36543208
      Subaru WRX 2003, Air Filter, Panel by Denso®. O.E. Quality Replacement Filter. The air filter is the last line of defense against the harmful airborne abrasives that have been proven to wear out engines before their time. With...
      High airflow rate improves performance and fuel economySuperior dust holding capacity increases filter life
      $13.12
    • MANN-Filter® Air Filter
      (0 reviews)
      # 20558646
      Subaru WRX 2003, Air Filter by MANN-Filter®. Get excellent engine protection and more economical operation just by replacing your air filter. This MANN air filter is specially designed for your vehicle to ensure a precise fit and...
      Optimum protection for the engine, airflow meters and other sensorsPerfectly adapted in form and function to your vehicle
      $7.34
    • Hastings® Air Filter
      (0 reviews)
      # 21456935
      Subaru WRX 2003, Air Filter by Hastings®. Clean air is critical to the performance of your engine, so don’t trust just any filter. Hastings filters are tested according to SAE J726 test procedures, where they meet or exceed the...
      Filters out dirt and dust in the air preventing them from entering the engineHeavy duty construction for long service life
      $12.49
    • Motorcraft® Air Filter
      (0 reviews)
      # 48715365
      Subaru WRX 2003, Air Filter by Motorcraft®. Type: 159. The air filter is a simple yet crucial part of your vehicle that keeps dust and road debris out of the engine. If the air filter is clogged up and starts to choke off the...
      Direct OEM replacement for proper fitRecommended by Ford Motor Company
      $16.54
    • Full® Air Filter
      (0 reviews)
      # 8012740
      Subaru WRX 2003, Air Filter by Full®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste your...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $10.22
    • NPN® Air Filter
      (0 reviews)
      # 8723692
      Subaru WRX 2003, Air Filter by NPN®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste your...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $7.09
    • Purolator® Air Filter
      (0 reviews)
      # 7791673
      Subaru WRX 2003, Air Filter by Purolator®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $11.95
    • Denso® Mass Air Flow Sensor
      (0 reviews)
      # 36543212
      Subaru WRX 2003, Mass Air Flow Sensor by Denso®. The air filter is the last line of defense against the harmful airborne abrasives that have been proven to wear out engines before their time. With OE-quality engineering and...
      Glass film coated sensing elements reduces contamination and improves reliabilityPlatinum wire sensing element responds quickly to changes in air flow
      $135.66
    • Standard® Remanufactured Mass Air Flow Sensor
      (0 reviews)
      # 44880007
      Subaru WRX 2003, Remanufactured Mass Air Flow Sensor 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
      $145.47
    • Genuine® Air Mass Meter Boot
      (0 reviews)
      # 44711892
      Subaru WRX 2003, Air Mass Meter Boot by Genuine®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, 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
      $67.51
    • Beck Arnley® Air Filter
      (0 reviews)
      # 35812667
      Subaru WRX 2003, Air Filter by Beck Arnley®, Primary. 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
      $9.65
    • Mahle® Intake Manifold Gasket
      (0 reviews)
      # 8542558
      Subaru WRX 2003, Intake Manifold Gasket by Mahle®. Upper Intake to Lower Intake. Note: Between Upper and Lower Intake Manifold. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your...
      $16.26
    • WIX® Air Filter Panel
      (0 reviews)
      # 64379465
      Subaru WRX 2003, Air Filter Panel by WIX®. Considering as much as 10,000 gallons of air must pass through the air filter for every gallon of fuel the engine consumes, WIX air filters play a vital part in preventing foreign...
      Prevents foreign particles like carbon, soot and abrasives from entering the fuel mixEnsures superior engine protection
      $13.84
    • Mishimoto® Black Powdercoated Steel Airbox
      (0 reviews)
      # 61366308
      Subaru WRX 2003, Black Powdercoated Steel Airbox by Mishimoto®. Add some additional style and efficiency to your existing Mishimoto Performance Air Intake! This powdercoated, black airbox will divert more cold outside air into your...
      Direct OEM fitManufactured from 100% high-quality materials
      $127.26
    • Bosch® Air Filter
      (0 reviews)
      # 63678180
      Subaru WRX 2003, Air Filter by Bosch®. Dirty air filters can cause decreased fuel mileage, increased engine wear, and even problems starting the engine. Check your engine air filter at every oil change and always replace a dirty...
      Protects Your Engine by Stopping 98% of Engine-Threatening ParticlesPrevention of Unfiltered Air Entering Engine Intake with a High-Quality Seal
      $15.85
    • A1 Cardone® Remanufactured Mass Air Flow Sensor
      (0 reviews)
      # 35534712
      Subaru WRX 2003, Remanufactured Mass Air Flow Sensor by A1 Cardone®. Mounting Hole Count: 2. Configuration Type: Bolt-On. Without Housing. With Mass Air Flow Sensor, Instruction Sheet. This is an aftermarket part that replaces...
      50-state emissions street legalThe finest quality at a great price
      $105.50
    • Mishimoto® Performance Silver Polished Aluminum Cold-Air Intake
      (0 reviews)
      # 61271388
      Subaru WRX 2003, Performance Silver Polished Aluminum Cold-Air Intake by Mishimoto®. Provide maximum, unrestricted airflow with the Mishimoto Performance Race Intake. Mishimoto pulled out all of the stops with this intake,...
      Installs in under 30 minutesLarger diameter intake pipe for large turbochargers and more aggressive engine tunes
      $186.34 - $299.97
    • AIRAID® Cone Air Filter
      (5 reviews)
      # 440693
      Universal Cone Air Filter by AIRAID®. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow and provides better air...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $24.90 - $106.90
    • Injen® EA Nanofiber Dry Air Filter
      (28 reviews)
      # 375948
      Universal EA Nanofiber Dry Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and holding...
      Revolutionary Nanofiber filter mediaIncreases airflow
      $53.26 - $68.80
    • Injen® High Performance Air Filter
      (17 reviews)
      # 375936
      Universal High Performance Air Filter by Injen®. Replace your worn out air filter with this high flow High Performance filter. It features a built-in velocity stack for added performance, urethane top and base to resist heat...
      Improves engine airflowIncreases horsepower and acceleration
      $49.32 - $57.54
    • K&N® Dual Flange Oval Straight Air Filter
      (0 reviews)
      # 25513976
      Universal Dual Flange Oval Straight Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      Improves engine airflowIncreases horsepower and acceleration
      $37.99 - $213.99
    • K&N® Oval Tapered Air Filter
      (0 reviews)
      # 25636561
      Universal Oval Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      Improves engine airflowIncreases horsepower and acceleration
      $32.99 - $192.99
    • K&N® Round Tapered Air Filter
      (6 reviews)
      # 25611518
      Universal Round Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      Improves engine airflowIncreases horsepower and acceleration
      $21.70 - $120.99
    • AEM® Clamp-On Round DryFlow Racing Air Filter
      (0 reviews)
      # 328142
      Universal Clamp-On Round DryFlow Racing Air Filter by AEM®. Let your engine breathe with an AEM DryFlow Racing filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's...
      Exceeds the engine’s normal airflow capacityEasy to clean – no oiling required
      $66.99
    • AEM® Oval DryFlow Air Filter
      (0 reviews)
      # 313145
      Universal Oval DryFlow Air Filter by AEM®. Let your engine breathe with an AEM DryFlow filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's DryFlow technology, cleaning...
      Exceeds the engine’s normal airflow capacityEasy to clean – no oiling required
      $38.99 - $95.99
    • AEM® Oval DryFlow Brute Force Air Filter
      (0 reviews)
      # 313143
      Universal Oval DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable and...
      Exceeds the normal airflow capacity of large displacement enginesEasy to clean – no oiling required
      $70.99 - $74.99
    • AEM® Round DryFlow Air Filter
      (2 reviews)
      # 322114
      Universal Round DryFlow Air Filter by AEM®. Let your engine breathe with an AEM DryFlow filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's DryFlow technology, cleaning...
      Exceeds the engine’s normal airflow capacityEasy to clean – no oiling required
      $24.05 - $62.99
    • AEM® Round DryFlow Brute Force Air Filter
      (1 reviews)
      # 313144
      Universal Round DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable...
      Exceeds the normal airflow capacity of large displacement enginesEasy to clean – no oiling required
      $46.99 - $54.99
    • AIRAID® Track Day Round Air Filter
      (0 reviews)
      # 65486457
      Universal Track Day Round Air Filter by AIRAID®. Track Day Filters are designed strictly to keep large debris out of the engine. Constructed with sturdy polyurethane casings and a durable wire mesh screen, they are built without...
      90-day warrantyMade in USA
      $47.90 - $52.90
    • Airaid® Round Air Filter
      (0 reviews)
      # 440764
      Universal Round Air Filter by Airaid®. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow and provides better air...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $48.90 - $81.90
    • Airaid® Sweet 16" Round Air Filter
      (0 reviews)
      # 13606468
      Universal Sweet 16" Round Air Filter by Airaid®, 16" OD x 14" ID. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $45.90 - $104.90
    • AIRAID® Breather Filter
      (5 reviews)
      # 440783
      Universal Breather Filter by AIRAID®. Keep your engine breathing properly and looking good with these crankcase vent filters.
      Washable and reusableAvailable in several diameters
      $16.90 - $26.90
    • Weapon-R® Secret Weapon Air Filter
      (10 reviews)
      # 282485
      Universal Secret Weapon Air Filter by Weapon-R®. The Secret Weapon air filter performs better than any other air filter available in the market today. It provides maximum airflow with the protection of Polyurethane foam.
      Integral velocity stack increases engine airflowPolyurethane foam flows more air and traps more dirt than conventional filters
      $65.00 - $75.00
    • Weapon-R® V2 Hyper Air Filter
      (2 reviews)
      # 290322
      Universal V2 Hyper Air Filter by Weapon-R®. The Polyurethane foam in the V2 Hyper air filter flows more air and traps more dirt than comparable paper and cotton filters.
      Polyurethane foam flows more air and traps more dirt than conventional filtersNo oiling required
      $50.00 - $55.00
    • Weapon-R® Dragon Air Filter
      (15 reviews)
      # 282419
      Universal Dragon Air Filter by Weapon-R®. The Polyurethane foam in the Dragon air filter flows more air and traps more dirt than comparable paper and cotton filters. The Dragon air filter is one of the highest rated air filters in...
      Polyurethane foam flows more air and traps more dirt than conventional filtersDisassembles easily for cleaning
      $55.00 - $65.00
    • Weapon-R® Dragon Breather Filter
      (6 reviews)
      # 284597
      Universal Dragon Breather Filter by Weapon-R®. Keep your throttle responsive with the installation of this breather filter.
      Prevents throttle body carbon buildupCan be cleaned and reused
      $10.00
    • Weapon-R® Super Matrix Breather Filter
      (4 reviews)
      # 286325
      Universal Super Matrix Breather Filter by Weapon-R®. Keep your throttle responsive with the installation of this breather filter.
      Prevents throttle body carbon buildupCan be cleaned and reused
      $10.00



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    2003 Subaru WRX Performance Air Intake Systems Reviews
    Average rating: 4.5 4.5 - 1 reviews
    (4.5)
    APPEARANCE
    EASE OF INSTALLATION
    PRICE/VALUE
    QUALITY
    2003 Subaru WRX | Posted by Bryson | (Oakville, ON)

    Intake adds noticeable power and sounds fantastic under medium to hard acceleration. Moderately difficult to install because of having to removing air resonator chamber inside the front bumper. Even after that, it's a tight squeeze getting the intake to fit. Great product though and is totally worth the installation time. Be sure to monitor your air to fuel ratio after installation, your engine might be getting too much air and run lean.

    3 people found this review helpful.
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