MagnaFlow Thrd O2 Sensor Boss 20-Pk

The MagnaFlow Oxygen Sensor Bung 10010 10-Pack allows you to install an oxygen sensor along your custom-built exhaust system or replace older oxygen sensor bungs that have been damaged or cross-thread along the way. Made of durable stainless steel, The MagnaFlow Oxygen Sensor Bung 10010 is backed by a limited lifetime warranty.