AEM Cold Air Intake Subaru WRX 02-05, Forester XT 04-05

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Polished; CARB Approved

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Every AEM cold air intake features high standards of construction. In fact, AEM is so confident in their products' fit and performance that they offer a lifetime limited warranty on them. All AEM cold air intakes include a lifetime Dryflow synthetic air filter which also comes with a limited lifetime warranty.

A cold air intake system relocates the filter outside of the engine compartment to deliver cool air inlet temperatures. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horsepower and torque. But that's only part of the power equation. Tuning the inlet pipe in length and diameter to match the engine's resonance helps move more air to the cylinders (think of your engine as a big air pump), and this tuning allows AEM to deliver large power gains. AEM also monitors fuel trim correction factors and all OBDII sensors during their product development to eliminate leaning the engine out and/or throwing a check engine light.

Installation Guides and Links

Installation Guide
Describes how to install AEM's cold air intake on Subaru WRX 02-05, Forester XT 04-05



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AEM Cold Air Intake
Polished; CARB Approved
Subaru WRX 02-05, Forester XT 04-05
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