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AEM Air Induction Systems for Subaru


AEM Induction
AEM Air Induction Systems for Subaru

Product images may differ from actual product appearance.

The Best Air Induction System On The Market!

AEM has pioneered the Cold Air Induction System (CAIS) for sport compacts. Their induction systems create more power than any other system. They relocate the filter outside of the engine compartment for a cooler intake charge. Every AEM air induction system is individually tuned in length and diameter, and features the highest standards of construction - AEM even guarantee's them for the life of your vehicle. Every AEM system is either C.A.R.B. exempt or pending C.A.R.B. exemption.

CAIS Key Features:

  • Outperform every comparable intake system on the market.
  • Utilizes a complete hardware kit with soft mounts for a guaranteed perfect fit.
  • Available powdercoated in Blue, Red, Silver and a unique maintenance-free Polished finish.
  • One-piece, four-layer, cotton-gauze AEM air filter eases installation and features an exclusive air horn design that improves performance.
  • Comprehensive installation instructions, AEM decals and license plate frame included.
  • Manufactured and Assembled in the USA.
  • Limited lifetime warranty.

Note: Short Ram Induction Systems Key Features are the same as the CAIS except it does not relocate filter outside of vehicle.



10 Products
Subaru CAIS

598-21-472P
Cold Air Induction System
  • 2002-05 Impreza RS 2.5L
  • Polished
    More info on AEM Induction 21-472P

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    MPG Installation Instructions for AEM Induction 21-472P
  • $305.99
    Order Today Ships 04/29/14

    598-21-474B
    Cold Air Induction System
  • 2002-05 Impreza WRX, STi
  • Blue
    More info on AEM Induction 21-474B

    Fits Applications
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    MPG Installation Instructions for AEM Induction 21-474B
  • $262.99
    Order Today Ships 04/29/14

    598-21-474C
    Cold Air Induction System
  • 2002-05 Impreza WRX, STi
  • Silver
    More info on AEM Induction 21-474C

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    MPG Installation Instructions for AEM Induction 21-474C
  • $262.99
    Order Today Ships 04/29/14

    598-21-474P
    Cold Air Induction System
  • 2002-05 Impreza WRX, STi
  • Polished
    More info on AEM Induction 21-474P

    Fits Applications
    • FREE
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    MPG Installation Instructions for AEM Induction 21-474P
  • $286.99
    Order Today Ships 04/29/14

    598-21-474R
    Cold Air Induction System
  • 2002-05 Impreza WRX, STi
  • Red
    More info on AEM Induction 21-474R

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    MPG Installation Instructions for AEM Induction 21-474R
  • $262.99
    Order Today Ships 04/29/14

    598-21-475B
    Cold Air Induction System
  • 2005-06 Legacy GT
  • Blue
    More info on AEM Induction 21-475B

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    MPG Installation Instructions for AEM Induction 21-475B
  • $255.99
    Order Today Ships 04/29/14

    598-21-475C
    Cold Air Induction System
  • 2005-06 Legacy GT
  • Silver
    More info on AEM Induction 21-475C

    Fits Applications
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    MPG Installation Instructions for AEM Induction 21-475C
  • $247.99
    Order Today Ships 04/29/14

    598-21-475P
    Cold Air Induction System
  • 2005-06 Legacy GT
  • Polished
    More info on AEM Induction 21-475P

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
    MPG Installation Instructions for AEM Induction 21-475P
  • $255.99
    Order Today Ships 04/29/14

    598-21-477C
    Cold Air Induction System
  • 2006 Impreza WRX STi 2.5L
  • 2004-07 Forester/Impeza WRX 2.5L
  • Turbo
  • Silver
    More info on AEM Induction 21-477C

    Fits Applications
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    MPG Installation Instructions for AEM Induction 21-477C
  • $270.99
    Order Today Ships 04/29/14

    598-21-477P
    Cold Air Induction System
  • 2006 Impreza WRX STi 2.5L
  • 2004-07 Forester/Impeza WRX 2.5L
  • Turbo
  • Polished
    More info on AEM Induction 21-477P

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
    MPG Installation Instructions for AEM Induction 21-477P
  • $294.99
    Order Today Ships 04/29/14

    10 Products