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The Stainless Works O2 bung is a CNC‑machined stainless steel sensor boss with a lead‑in chamfer for easier sensor installation. It uses M18 x 1.5 threads and sits about 1/2" tall overall, making it suitable for adding a factory‑style sensor port to exhaust tubing. The manufacturer recommends using Neversieze on the threads to ease installation and prevent galling.
Stainless Works O2 Bung
