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AEM Cold Air Intake Chrome Civic Si (2007-2011)

AEM Induction

SKU: 21-685C

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Product Description

AEM's Honda Civic Si Cold Air Intakes (CAI) relocate the air filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. 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 no company on the market can tune an inlet as well AEM can. AEM also monitors fuel trim correction factors and all OBD II sensors during R&D to eliminate leaning the engine out and/or throwing a check engine light.

NOTE: This kit is street legal in all 50 US states. CARB EO Number: D-670-21

Note:
Does not fit 2006 Civic Si models.


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