AEM Induction

AEM Cold Air Intake Gunmetal Grey

2004-2007 Subaru WRX / STI

Ships for free in the 48 states

SKU: 21-477CWe price match!

Out of Stock


  • Directly replaces your factory airbox
  • Allows your turbocharger to inhale a larger volume of unrestricted air
  • Increases horsepower, torque, and throttle response
  • Race-inspired aesthetics in the engine bay
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AEM Cold Air Intake Gunmetal Grey


  • 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 gunmetal grey 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





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. 



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