I have pretty much stock exhaust from the manifold back. I just bought a new tube the goes from the manifold to just before the muffler and i was wondering what size the bolts were to bolt the O2 sensor down? so i can pick 2 up tommorow during lunch break. Thanks in advance

 

IIRC, my O2 uses 10mm nuts and most likely a 6x1 thread. But, I can't remeber if that's stock or something I changed.

Turns out I am of very little help after all.