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  1. cooler running A/F bung

    Performance
    ""New "Low Restriction, Cooler Temperature" A/F Sensor Boss We've got a new style weld-able "boss" or "bung" for the A/F sensors (wide band O2 sensors). It's designed with some small cooling fins and extra depth to keep the A/F sensor cooler (good for high temp turbo applications) and out of...
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