2004 Subaru WRX Performance Air Intake Systems

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    • GREEN FILTER® Color Match Cone Air Filter
      (0 reviews)
      # 2565312
      Universal Color Match Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...
      Will outlast your vehicleTraps particles as small as 5 microns
      $32.34 - $72.81
    • GREEN FILTER® Color Match Dual Cone Air Filter
      (0 reviews)
      # 2565314
      Universal Color Match Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone aircleaner element, try matching it up here. Choose by inside diameter of the rubber bottom ring,...
      Will outlast your vehicleTraps particles as small as 5 microns
      $49.04 - $65.11
    • GREEN FILTER® Color Match Round Air Filter
      (0 reviews)
      # 2565310
      Universal Color Match Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall...
      Cotton element left white: use colored oil to match your vehicleWill outlast your vehicle
      $47.33 - $58.36
    • GREEN FILTER® Cone Air Filter
      (4 reviews)
      # 2565318
      Universal Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the base,...
      Should outlast your vehicleTraps particles as small as 5 microns
      $29.67 - $115.50
    • GREEN FILTER® Cylinder Air Filter
      (1 reviews)
      # 2565319
      Universal Cylinder Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cylindrical aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the...
      Will outlast your vehicleTraps particles as small as 5 microns
      $16.79 - $76.75
    • GREEN FILTER® Dual Cone Air Filter
      (0 reviews)
      # 2565320
      Universal Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...
      Will outlast your vehicleTraps particles as small as 5 microns
      $58.80 - $82.50
    • GREEN FILTER® Round Air Filter
      (0 reviews)
      # 2565299
      Universal Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall height. This might...
      Signature Green Filter green cotton elementWill outlast your vehicle
      $39.59 - $61.62
    • Rugged Ridge® Conical Air Filter
      (0 reviews)
      # 6894347
      Universal Conical Air Filter by Rugged Ridge®. Get increased airflow, better filtration and reduced maintenance with this high performance synthetic air filter. The increased airflow will improve engine performance, while the...
      Improves airflow and engine performanceProvides superior air filtration for increased engine protection
      $35.99
    • aFe® Crankcase Vent Breather Filter
      (1 reviews)
      # 847851
      Universal Crankcase Vent Breather Filter by aFe®. Keep your engine breathing properly and looking good with this crankcase vent breather filter.
      $27.47 - $49.70
    • GREEN FILTER® Crankcase Air Filter
      (1 reviews)
      # 2565187
      Universal Crankcase Air Filter by Green Filter®. Route your crankcase breather into one of these filters to keep dirt and bugs from entering your crankcase. It’s easy to clean, and will soak up some glop that otherwise would wind...
      Cotton element catches oily blow-bySteel mesh resists denting
      $16.79 - $20.99
    • AIRAID® Mass Air Flow Tube with Plate
      (0 reviews)
      # 36008690
      Universal Mass Air Flow Tube with Plate by AIRAID®. Mass Air Flow Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $49.90 - $59.90
    • AIRAID® Mass Air Flow Tube
      (0 reviews)
      # 36008686
      Universal Mass Air Flow Tube by AIRAID®. Mass Air Flow Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $29.90
    • AIRAID® Mass Air Flow Sensor Plate
      (0 reviews)
      # 36008683
      Universal Mass Air Flow Sensor Plate by AIRAID®. Mass Air Flow Sensor Plate will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $24.90 - $49.90
    • AIRAID® Air Intake Hump Hose
      (0 reviews)
      # 36008593
      Universal Air Intake Hump Hose by AIRAID®. Air Intake Hump Hose will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $8.90 - $69.90
    • AIRAID® Air Intake Silicone Reducer
      (0 reviews)
      # 36008628
      Universal Intake Silicone Reducer by AIRAID®. Air Intake Silicone Reducer will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $13.90 - $67.90
    • AIRAID® Air Intake Tube
      (0 reviews)
      # 36008512
      Universal Air Intake Tube by AIRAID®. Air Intake Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $6.90 - $59.90
    • AIRAID® Intake Bracket
      (0 reviews)
      # 36008511
      Universal L-Shaped 90 Degree Intake Bracket Tube Mount by AIRAID®. Intake Brackets will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $10.50
    • AIRAID® Straight Intake Bracket
      (0 reviews)
      # 36008671
      Universal Intake Bracket by AIRAID®. Intake Brackets Plate will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $6.50 - $44.90
    • Spectre Performance® Air Intake Hump Hose
      (0 reviews)
      # 12037463
      Universal Air Intake Hump Hose 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 products...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $32.40
    • Spectre Performance® Intake Tube Extension with Collar
      (0 reviews)
      # 12061769
      Universal Intake Tube Extension with Collar 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!...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $5.00
    • Spectre Performance® Intake Tube Funnel
      (0 reviews)
      # 12061770
      Universal Intake Tube Funnel 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 products are...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.35 - $12.53
    • Spectre Performance® Intake Mounting Bracket
      (0 reviews)
      # 12072125
      Universal Intake Mounting Bracket 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 products...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $5.00
    • Spectre Performance® Intake Tube/Duct Mounting Plate
      (0 reviews)
      # 12061775
      Universal Intake Tube/Duct Mounting Plate 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
      $5.00 - $12.53
    • Spectre Performance® Air Intake Tube Collar Clamp
      (0 reviews)
      # 12039508
      Universal Air Intake Tube Collar Clamp 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 - $12.53
    • Spectre Performance® Intake Tube Grommet
      (0 reviews)
      # 12061771
      Universal Intake Tube Grommet 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 products are...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.35
    • Spectre Performance® Mock-Up Foam Insert
      (0 reviews)
      # 12062541
      Universal Mock-Up Foam Insert 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 products are...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.35
    • AIRAID® Filter Adapter
      (0 reviews)
      # 36008653
      Universal Air Filter Adapter by AIRAID®. Filter Adapter will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $22.90 - $99.90
    • Weapon-R® Mass Air Flow Adapter
      (0 reviews)
      # 26083767
      Universal Mass Air Flow Adapter by Weapon-R®, 3" Inlet. This universal adapter will let you attach that air cleaner of your choice to the inlet of your airflow sensor. Made from rugged plastic, it bolts to flat inlet of the sensor,...
      Rugged plastic adapterHardware included
      $13.00
    • K&N® Carbureted Models Custom Plenum
      (0 reviews)
      # 308684
      Universal Carbureted Models Custom Plenum by K&N®. With this Custom Plenum, you can run a Cold Air Intake system or universal filter on your carbureted engine.
      $203.99
    • K&N® Weber DGV Mini Plenum
      (0 reviews)
      # 308685
      Universal Weber DGV Mini Plenum by K&N®. With this Mini Plenum, you can run a Cold Air Intake system or attach a universal filter to your Weber DGV carburetor.
      $178.99 - $186.99
    • K&N® Adapter Hose
      (0 reviews)
      # 312930
      Universal Adapter Hose by K&N®. Whether you’re fabricating your own air intake system or need to replace a worn out connection, K&N has you covered with these Adapter Hoses.
      $5.02 - $23.71
    • K&N® Air Filter Hardware Kit
      (0 reviews)
      # 336563
      Universal Air Filter Hardware Kit by K&N®. This kit includes the specific bolts, washers or O-rings needed for specific installations.
      $5.78 - $6.94
    • K&N® Spring Clip Clamps
      (0 reviews)
      # 11062214
      Universal Spring Clip Clamps by K&N®. Spring clips create a positive seal between the filter, base and top.
      $30.99
    • K&N® Adapter Flange
      (0 reviews)
      # 336559
      Universal Adapter Flange by K&N®. Use this Adapter Flange to install a K&N Filter to a flat flange carburetor.
      $11.74 - $23.38
    • AEM® Hose Hump
      (0 reviews)
      # 322129
      Universal Hose Hump by AEM®. If you’re replacing a piece of hose, or adapting or modifying an AEM Cold Air Intake or Short Ram System, use the proper hoses and adapters from AEM for long service life.
      $8.98 - $14.43
    • AEM® Bracket
      (0 reviews)
      # 40463969
      Universal Bracket by AEM®. This bracket is designed to be welded onto air intake tubes for racers, builders and fabricators to create secure custom ducting for turbocharger systems, air intakes and exhausts. The generous 12" length...
      $4.44
    • AEM® Hose Adapter
      (0 reviews)
      # 322118
      Universal Hose Adapter by AEM®. If you’re replacing a piece of hose, or adapting or modifying an AEM Cold Air Intake or Short Ram System, use the proper hoses and adapters from AEM for long service life.
      $8.82 - $23.65
    • AEM® Hose Clamps
      (0 reviews)
      # 322124
      Universal Hose Clamps by AEM®. Use these lined hose clamps throughout your air intake system. These clamps cover the worm drive slots to prevent damaging the hose underneath.
      $12.36 - $42.99
    • AIRAID® Carbon Fiber Hat
      (0 reviews)
      # 10805100
      Universal Carbon Fiber Hat by AIRAID®. If you can imagine a custom intake system, now you can build it! Complete your custom cold air intake system with this carbon fiber hat designed to make the horsepower that you can feel. It...
      Designed to optimize air flow for a gain in horsepowerAllows car builders to fabricate their own high-performance cold air intake system
      $499.90 - $546.90
    • AIRAID® Air Intake Tube Coupler
      (0 reviews)
      # 36008568
      Universal Air Intake Tube Coupler by AIRAID®. Air Intake Tube Coupler will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $7.90 - $54.90
    • AIRAID® Air Intake Hose
      (0 reviews)
      # 36008676
      Universal Air Intake Hose by AIRAID®. Air Intake Hose will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $1.90 - $4.90
    • AIRAID® Air Intake Hose Clamp
      (0 reviews)
      # 36008659
      Universal Air Intake Hose Clamp by AIRAID®. Air Intake Hose Clamps will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $3.90 - $5.50
    • Spectre Performance® Air Cleaner Breather Tube Fitting
      (0 reviews)
      # 12037376
      Universal Air Cleaner Breather Tube Fitting 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!...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $4.00
    • Spectre Performance® Vacuum Sensor Adapter Kit
      (0 reviews)
      # 12072320
      Universal Vacuum Sensor Adapter Kit 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
    • Spectre Performance® Intake Bolt Set with Tool
      (0 reviews)
      # 12061586
      Universal Intake Bolt Set with Tool 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 - $12.53
    • Spectre Performance® Air Intake Tube Mounting Plate
      (0 reviews)
      # 12039533
      Universal Air Intake Tube Mounting Plate 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
      $5.00
    • Spectre Performance® Air Intake Worm Gear Clamps
      (0 reviews)
      # 12039540
      Universal Air Intake Worm Gear Clamps 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
      $6.00
    • Hayden® Fan Mount Brackets
      (0 reviews)
      # 22274237
      Universal Fan Mount Brackets by Hayden®, Dual brackets for 10", 12", 14" or single 16" fans. Tired of having cracked or broken fan brackets? Hayden has the perfect product for you. Made of quality materials and powder coated for...
      Durable constructionPowder coated for superior durability
      $38.39
    • Spec-D® Intake Single Side Turbo Fan
      (10 reviews)
      # 43387771
      Universal Intake Single Side Turbo Fan by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories. No matter whether...
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      $17.80
    • Injen® Air Filter Recharge Kit
      (4 reviews)
      # 378505
      Universal Air Filter Recharge Kit by Injen®. Keep your Injen cotton gauze High Performance air filter in top shape with the Air Filter Recharge Kit. It includes the 12oz. filter cleaner that loosens and removes dirt particles from...
      $11.12
    • K&N® Air Filter Recharge Kit
      (10 reviews)
      # 336501
      Universal Air Filter Recharge Kit by K&N®. The only cleaner and oil authorized by K&N for reconditioning K&N filters.
      $11.36
    • AIRAID® Air Filter Tune-Up Kit
      (3 reviews)
      # 430055
      Universal Air Filter Tune-Up Kit by AIRAID®. Keep your AIRAID SynthaFlow air filter in top shape with the Air Filter Tune-Up Kit. It includes the filter cleaner that loosens and removes dirt particles from the filter, and the...
      Maintains the life and performance of your SynthaFlow air filterIncludes filter cleaner and filter oil
      $6.50 - $10.90
    • aFe® Restore Kit
      (2 reviews)
      # 1081661
      Universal Restore Kit by aFe®. Keep your aFe performance air filter in top shape with the Restore Kit. The kit includes everything you need to thoroughly clean your air filter and put it back to like new condition.
      $7.95 - $39.95
    • Takeda® Restore Kit
      (0 reviews)
      # 14822887
      Universal Restore Kit by Takeda®. Keep your Takeda performance air filter in top shape with the Restore Kit. The kit includes everything you need to thoroughly clean your air filter and put it back to like new condition.
      $19.95
    • GREEN FILTER® Cleaning Kit
      (1 reviews)
      # 2614008
      Universal Cleaning Kit by Green Filter®. Clean and recharge your Green Filter aircleaner element with these products. The air filter cleaner makes the dirt and filter oil rinse off easily, while the spray bottle of air filter oil...
      $7.92 - $28.16
    • CRC® Throttle Body Air-Intake Cleaner
      (0 reviews)
      # 46061892
      Universal Throttle Body Air-Intake Cleaner by CRC®, 12 oz. Throttle Body and Air Intake Cleaner cleans gum and varnish from the throttle valves and throttle body for easier starting and smoother engine performance.
      $4.19
    • Spec-D® Snorkel Pre-Cleaner Filter
      (0 reviews)
      # 43387858
      Universal Snorkel Pre-Cleaner Filter by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories. No matter whether...
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      $30.26
    • Weapon-R® Air Filter Recharge Kit
      (4 reviews)
      # 9119885
      Universal Air Filter Recharge Kit by Weapon-R®. Keep your Dragon or Secret Weapon air filter in top condition with this air filter cleaner kit.
      $8.00 - $13.00
    • Pilot® Medium Red Anodized Intake Clamp
      (0 reviews)
      # 11593248
      Universal Medium Red Anodized Intake Clamp by Pilot®, 2.5" - 3". Pilot's products are made of durable material for a long lasting product.
      Helps you to get the most out of your vehiclePrecision designed to perfectly fit your vehicle
      $9.99
    • Weapon-R® Silicon Black Reinforced Hump Hose
      (0 reviews)
      # 15700940
      Universal Silicon Black Reinforced Hump Hose by Weapon-R®, 3'' length.
      $17.30 - $24.31