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AEM Cold Air Intake Blue - Subaru WRX 2002-2005
AEM Cold Air Intake Blue - Subaru WRX 2002-2005
AEM Cold Air Intake Blue - Subaru WRX 2002-2005
AEM Cold Air Intake Blue - Subaru WRX 2002-2005
AEM Cold Air Intake Blue - Subaru WRX 2002-2005
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User Media for: AEM Cold Air Intake Blue - Subaru WRX 2002-2005

AEM Cold Air Intake Blue

Subaru WRX 2002-2005


Estimated to ship in 9 days
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Features & Product Details

RallySport Direct proudly carries a great selection of performance intake systems brought to you by AEM. 


This is the AEM Cold Air Intake System. This is a high-performance replacement for your factory intake system, and it has been designed, tuned, and dyno-tested to produce more horsepower and torque while increasing the throttle response. Air will enter an oversized AEM Dryflow synthetic washable air filter with great flow and filtration characteristics to produce more performance. The included intake tube features strong mandrel-bent aluminum construction that will come powder-coated to improve the overall engine bay aesthetics while reducing the chances of corrosion. The filter features oil-free synthetic filter media that can be used for up to 100,000 miles before cleaning is required. A great upgrade that will allow your engine to breathe a larger volume of restriction-free air to improve your engine's response, and power while enhancing the overall driving experience. 





  • Features AEM's Dryflow synthetic washable air filter that can last up to 100,000 miles before cleaning
  • Includes a mandrel-bent aluminum intake pipe with smooth interior walls that limit turbulence 
  • The intake pipe will come in a blue powder-coated finish 
  • Includes a heat shield and lid to protect the filter from hot engine bay temperatures
  • Direct replacement for your factory restrictive intake system
  • Allows your engine to breathe in a larger volume of unrestricted air
  • Increases horsepower and torque
  • Improves the turbo and throttle response



  • AEM Induction recommends having a tune accompanied with the intake
  • If any questions or concerns please contact our customer service



    Brand: AEM Electronics
    Carb Exempt: Yes
    Carb E.O. Number: D-670-2
    Filter Color: Grey
    Filter Element Type: Dry
    Filter Material: Cotton
    Filter Reusable: Yes
    Includes Airbox: No
    Piping Color: Blue
    Piping Material: Aluminum
    Tuning Required: No
    Mfgr. Warranty: Limited Lifetime Warranty
    Condition: New Product
    Return Policy:
    WARNING: Cancer and Reproductive Harm -



    3 Reviews
    5 out of 5 Stars
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Customer Photos and Videos
    AEM Cold Air Intake Blue ( Part Number: 21-474B)
    Engineered to Outpreform 12 years ago
    5out of 5stars
    Extremely good quality intake, just bought mine yesterday. The install took like 45 min and I am very pleased. If you wanna feel stronger pulls especially on 2nd and 3rd then this is the intake for you!!
    Was this review helpful?
    sssssssssssssssss!!! 12 years ago
    5out of 5stars
    Looks great when installed and sounds even better from inside the car and pretty simple to install. RSD was quick with the shipment. Overall a great mod for any Subaru.
    Was this review helpful?
    more air 12 years ago
    5out of 5stars
    Just put mine in today. helps spool up.sounds great. had a slight issue with the screws for the map sensor had to add some washers.
    Was this review helpful?


    • Q: Rain driving  AlphA2 years ago

      Is this style of cold air intake safe to use if driving though heavy rain?
    • Q: Wagon?  Eguy1269 years ago

      Does this fit the wagon? Any modification needed if tight fit?
      • 0 of 0 people found the following answer helpful

        A:  This intake will fit both sedan and wagon models, and no modification is necessary.

        Zach G. @ RallySport Direct 9 years ago  
        Was this answer helpful?
    • Q: which intake  Scooby snacks110 years ago

      In your last sentence you said intake which one the cobb sf or the AEM CAI. And being that I have an 02 wrx do I need a tune after I add a full invidia exhaust system? I am gonna go with the AEM I think just to save on money. If i do need a tune should I get the cobb AP or just get a protune? Also thank you for the information!!!
      • 0 of 0 people found the following answer helpful

        A:  Cobb does not currently have a MAP to support the AEM intake for the 02-07 models unfortunately. And a tune is always recommend after the installation of any intake just to be safe, plus you would see really nice gains with an intake, turboback exhaust and a tune. And deciding between a pro-tune and the off the shelf map is tough choice, but the pro-tune would give you more power as it is going to be specific for your environment and mods. Let us know if you have any other questions. Thanks.

        Rick C. @ RallySport Direct 10 years ago  
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    • Q: AEM CAI or Cobb SF intake with air box  Scooby snacks110 years ago

      I am so unsure now about what intake I should get. I know everybody is ravin about the cobb sf intake and i was sure as of yesterday that I was going to get one myself but today questions come into play. I see all these install videos with the airbox pairs with the ram air duck, I don't have a ram air duck and im trying to save some money, both the oem and the air duck on your website are expensive. Please give me all the input on both intakes, also if the AEM CAI will work with the Cobb AP?
      • 0 of 0 people found the following answer helpful

        A:  The main differences between this intake and the Cobb intake are the filter location and length of piping. They will both have similar hp and torque gains and the final decision will come down to personal preference. The Cobb filter will be more accessible for cleaning and maintenance and the airbox will make it perform like a cold air intake. Cobb currently does not have any off the shelf maps to support this intake.

        Zach G. @ RallySport Direct 10 years ago  
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    • Q: 2002 WRX  dpalmer11 years ago

      With the install of this, would I need a tune?
      • 1 of 1 people found the following answer helpful

        A:  AEM says that this intake does not require any tuning, but you will not get the full potential out of this or any intake without a tune. I recommend tuning with any aftermarket intake to ensure the safety of the engine and for maximum power gains.

        Zach G. @ RallySport Direct 11 years ago  
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