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AEM Cold Air Intake Polished - Subaru WRX/STi 2004-2007
AEM Cold Air Intake Polished - Subaru WRX/STi 2004-2007
AEM Cold Air Intake Polished - Subaru WRX/STi 2004-2007
AEM Cold Air Intake Polished - Subaru WRX/STi 2004-2007
AEM Cold Air Intake Polished - Subaru WRX/STi 2004-2007

AEM Cold Air Intake Polished

Subaru WRX/STi 2004-2007

Read 1 Reviews | 2 Q&As
Part # 21-477P
msrp: $482.79

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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.




  • Tuned and dyno-tested to improve acceleration and engine sound
  • Low restriction aluminum intake pipe
  • Intake pipe will come in the polished 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-670-6
    Filter Color: Grey
    Filter Element Type: Dry
    Filter Material: Cotton
    Filter Reusable: Yes
    Includes Airbox: No
    Piping Color: Polished
    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 -



    1 Reviews
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    05 Forester xt 5 years ago
    3out of 5stars

    fitment was pretty crappy with perrin turbo inlet hose, no matter what i did i could not get the mounting bolt hole to line up with anything, this is def a true CAI, it sits a little to low in the fender for my liking and for that reason i will strongly be trying to avoid driving my car in the rain from now on, and def over priced for what you get. but sounds preeeetty good.
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    • Q: Compatible with Cobb Accessport?  BlueRidgeRex2 years ago

      Hello, I have a 2007 WRX. Will this cold air intake work with the stage 2 tune on the accessport? Or will I need to go for the normal air intake? Thank you in advance for the response.
      • 0 of 0 people found the following answer helpful

        A:  Sadly this is not compatible with the Cobb OTS Stage 2 map, you will need a custom tune in order to run this intake.

        Jared A. @ RallySport Direct 2 years ago  
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    • Q: Q  Joedee187533016 years ago

      How bad is it running this product withount a tune?
      • 0 of 0 people found the following answer helpful

        A:  AEM claims that tuning is not required, but we strongly recommend a tune with any intake. Without a tune it is possible to damage the engine because the intake could cause the car to run lean.

        Zach G. @ RallySport Direct 6 years ago  
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