Duramax MAP weld bung

316L bolt together MAP bung for GM Duramax MAP sensors. CAD Designed for accuracy. Includes top cap, bottom weld fitting and required stainless hardware for installation. Radius matches 3" tube or can be modified to fit 3.5" tube. Simply weld into place, remove your factory "tin" bolt down bracket from your stock MAP sensor, and install with supplied hardware. Please allow 1-2 weeks prior to shipping as these are currently built to order.