does anybody know if an auto parts store like autozone or napa sell 02 sensor bungs

 

Just call and ask if they have an 18mm O2 bung plug in stock.

 

^^^^^ hes right but you can also go to the hardware store with yer o2 sensor and get a nut the fits, and weld it in. but if you do this you might want to grind the nut thinner, if you dont think the sensor is protruding into the pipe far enough

 

napa does for sure, or at least the one by me does, I bought 2 from them a few weeks ago