I have a 2008 g37, due to it being so low the o2 sensor got damaged I bought the car this way and Im trying to relocate them so they won' be going downward. i want to know what sizes the plugs and bunngs are since I can't find a good answer. also if anyone has any extra o2 sensor.

 

Check my first post here~
https://www.myg37.com/forums/engine-...est-pipes.html

 

I'm just look for the sizes to plug the old o2 sensor ports and the bugs for the new location

 

Same as a spark plug size wise