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AEM Cold Air Intake Subaru WRX/STi [Wrinkle Red] (2008-2013) 21-478WR
Estimated HP Gain: 36hp@5300 RPM
The AEM Cold Air Intake was one of the first intakes available on the market, and has proven itself over the years to be one of the best. AEM Cold Air Intakes are designed to be a bolt on modification and replaces the factory intake system with a less restrictive system that feeds in as much cold air into the engine as possible. Cooler air produces more power. AEM intakes have been tested against the competition to ensure this intake produces the most usable power that you can really feel.
AEM Cold Air Intake Features
| Make | Model | Trim | Year |
| Subaru | Impreza STi | 2008 - 2013 | |
| Subaru | Impreza WRX | 2008 - 2013 |