Should I have the O2 sensor put there (6-8"), or lower like where integras have them? I just figured that since civics have them on the upper part of the exhaust manifold, it should be fine. I will also be putting a wide band in there to tune with. So should I have 2 O2 bungs put in, and just spot weld a bolt in the second one until I use it for the wideband?