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AEM Induction

AEM 08-14 WRX/STi Cold Air Intake System - Gunmetal Gray

Manufacturer part number: 21-478C

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CODE: AEM21-478C
$314.99 Available to order Sold out
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AEM cold air intake systems are designed to increase horsepower and torque. The system includes an oversized AEM DRYFLOW synthetic washable air filter, engineered to provide outstanding airflow, filtration, and performance, and also features a mandrel-bent aluminum intake tube and high quality hardware. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the factory fresh air duct attaches to the heat shield. The entire system can typically be installed in less than 90 minutes.

Installation Instructions
User 1
  • Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.

This Part Fits:

Year Make Model Submodel
2008-2014 Subaru Impreza WRX
2010-2014 Subaru Impreza WRX Limited
2009-2014 Subaru Impreza WRX Premium
2008-2014 Subaru Impreza WRX STI
2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition