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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

Read 3 Reviews | 6 Q&As
Part # 21-474B
msrp: $454.19

Ships within 8 days

Features & Product Details

RallySport Direct is proud to provide you with another quality performance intake system brought to you by AEM.

On this page, you are looking at the AEM Cold Air Intake System designed specifically for your application to replace the factory restrictive intake system to increase both power and performance. This is a complete kit that replaces your factory air filter and air intake housing and has been dyno-proven to produce more power and torque.

Here are the details:

  • Tuned and dyno-tested to improve acceleration and engine sound
  • Low restriction aluminum intake pipe
  • Intake pipe will come powder-coated a gloss blue finish
  • Air filter can last up to 100,000 miles before cleaning is required
  • Air filter is washable and reusable
  • Comes with the DryFlow filter option
  • Increased horsepower
  • Improved throttle response
  • Improved torque
  • Reduced turbo lag
  • Increased intake sound
  • Includes new clamps
  • Note that a tune is required to utilize the maximum performance from this intake
  • Specifications

    Brand: AEM
    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:

    RallySport Guarantee - 30 Days

    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    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 9 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!!! 9 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 9 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: Wagon?  Eguy1267 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 7 years ago  
        Was this answer helpful?
    • Q: which intake  Scooby snacks18 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 8 years ago  
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    • Q: AEM CAI or Cobb SF intake with air box  Scooby snacks18 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 8 years ago  
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    • Q: 2002 WRX  dpalmer8 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 8 years ago  
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    • Q: 2004 WRX wagon  Kernan1149 years ago

      First off, just to make sure, will this fit the wagon. Also is there a way for water to get to this or is it safe to drive through mud/water?
      • 0 of 0 people found the following answer helpful

        A:  I don't show AEM specifying fitment between the wagon and sedan so I imagine it fits both. The filter does sit relatively low in your fender so if you are in deep enough water/mud it could get sucked into the filer. If you are concerned about water/mud then I would suggest using the AEM filter wrap which is what AEM recommends using to keep water and mud from penetrating your filter.

        Tanner S. @ RallySport Direct 9 years ago  
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