I dont have my camera so i cant take a pic..But i put my primary o2 sensor at the end of my downpipe which my 3 in adaptor goes over.So what i did is i drilled a hole in the adaptor and then the downpipe have the bung welded on and now the o2 sensor alony sticks out like1/2 in at the most in the exhaust iam i going to get inaccurat readings because its not stick out far enough

 

if you welded the bung on correctly it should be just fine.

 

what do u mean by correctly id say its more like 1/4 in stick out

 

what kind of bung did you get? If it is welded flush, then it shouldn't be a problem. But 1/4 sounds kinda short.

 

ya i think iam just going to have to redo it my situation is my down pipe comes out with a 3 in with no flanges or anything..Iam not running a cat so i need something to connect to my 3 in down pipe then to connect to my 2 1/2 in 3 bolt flange for my apexi exhaust any ideas