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AEM 06-07 WRX/ 06 STi Polished Cold Air Intake

Unlock the full potential of your Subaru Impreza WRX/WRX STI with the AEM 21-477P Performance Cold Air Intake System. This system produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing.

The air intake system was designed, tuned, and dyno-tested to fit specific Subaru Impreza WRX/WRX STI, Forester Turbo, and SAAB 9-2X models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration, and performance.

  • Relocates the air filter to the passenger-side wheel well to reduce intake air temperature and increase horsepower
  • Constructed from mandrel-bent aluminum featuring a durable chrome-like finish
  • Accommodates the engine's factory emissions control devices including the mass air flow sensor
  • Backed by AEM's Lifetime Limited Warranty
Make Model Year Type
Saab 9-2X 2006 2.5i
Saab 9-2X 2006 Aero
Subaru Forester 2004 XT
Subaru Forester 2005 XT
Subaru Forester 2005 XT Premium
Subaru Impreza 2004 WRX STI
Subaru Impreza 2005 WRX STI
Subaru Impreza 2006 WRX
Subaru Impreza 2006 WRX Limited
Subaru Impreza 2006 WRX STI
Subaru Impreza 2006 WRX TR
Subaru Impreza 2007 WRX
Subaru Impreza 2007 WRX Limited
Subaru Impreza 2007 WRX STI
Subaru Impreza 2007 WRX STI Limited
Subaru Impreza 2007 WRX TR
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