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    AEM Cold Air Intake System - Ford Focus L4-1.6L F/I 15-18 (Gunmetal Gray)
    Purchase AEM Cold Air Intake System - Ford Focus L4-1.6L F/I 15-18 (Gunmetal Gray)

    AEM Cold Air Intake System - Ford Focus L4-1.6L F/I 15-18 (Gunmetal Gray)

    Part Number: AEM-21-850C
    $399.99

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    Not CARB Legal - Not for sale or use in California or Other CARB States View Restriction.

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    Description

    NOTE: Not for sale or street use in CA & CARB States. Check your state and local law requirements and regulations.

    High flow metallic substrate catalytic converters, OBDII & 49 state compliant. Full stainless steel construction. Our test data shows that this cat flows 87% as well as a test pipe vs. 43% for the OEM Cat. Smog legal, high flow, no test pipe smell. You can have it all....

    AEM Cold Air Intakes and Performance Air Intake Systems

    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 us to deliver large power gains. We also monitor fuel trim correction factors and all OBDII sensors during product development to eliminate leaning the engine out and/or throwing a check engine light.

    - Improved Horsepower Gains
    - Improved Throttle Response
    - Enhanced Engine Sound
    - DryFlow Oil-free Synthetic Filter Media
    - Washable and Reusable Air Filter
    - Up to 100,000 miles of use before cleaning needed
    - Incredibly Quick and Easy to Clean
    - Lifetime Limited Warranty
    Brand:AEM
    Color:Gunmetal
    MPN:21-850C
    UPC:24844368669
    MAKE:Ford
    MODEL:Focus
    YEAR:2015-2018