what size are o2 sensors?? not like for a wrench size i need like pitch and stuff .. because i have to fill the bung in my hf mani , and my dsm t25 exhaust housing and i need to bolts the same size .. my new 2.5 turbo back exhaust sounds like ---- other wise with 3 o2 bungs and 2 open ones that sound like ---- ..

 

bump.. anyone?

 

nvm i think its 18mm x 1.5 . if anyone thinks different lemme know , thanks

 

You could always take you sensor to the parts stores and try different nuts on it untill you find the right diameter and thread.

 

I think you got it with 18x1.5 I'm not 100% sure but like 85%

 

there all the same size so no mystery there, go to napa and pick up a couple plugs.