Metric O2 Sensor Exhaust Bung for BMWs

Are you adding a custom exhaust to your BMW or repairing your old one?  You might need to add a custom O2 sensor exhaust bung.  These high quality steel exhaust bungs are the correct size for your BMW.  Simply drill a hole in your exhaust tubing, and weld in the bung.  Each kit comes with a bung and plug if needed.

Size: M18x1.5

*Note: Recommended for 2.25" or 2.5" exhaust.  If you are using these on 3" you may have to modify the coping.

Kit Includes: 1 bung, 1 plug