[Eyelise]

Anyone know where I can source a plug bolt for my test pipe? I have an extra sensor mount I need to plug.

 

[Westrock]

Heres one available from summit racing. Those are bungs and plugs....your thread is a little misleading as to which you are looking for.

Search Results for oxygen sensor fitting - SummitRacing.com

I've had good luck in that the tuner shops I've gone to have had bungs in stock. Its a fairly common thing to have for a tuner shop if they want to make some money on installation of a Air/Fuel guage.