Wideband Bung location

[RobertT]

Ok guys I'm back. I want to know where I need to put the bung on a 2 into 1 exhaust. I have ARH long tubes and im aware of the clocking positions of the sensor. But how far back from the y pipe connection does it need to be?

[5FDP]

You only want it to read one bank of cylinders, pick whatever side is best to get at.

I always do the drivers side on GM trucks, like 5-10in behind the front o2 sensor usually.

[04silverado6.0]

I sometimes tune on the passenger side on the trucks. I try to leave them slightly rich when doing so. Ive had a xpipe setup come in with the bung in the x reading both banks. I would shoot for the driver side closer to the front o2 if possible.

[RobertT]

Oh wow.... glad I asked! Thanks guys I appreciate the info very much

[RobertT]

You only want it to read one bank of cylinders, pick whatever side is best to get at.

I always do the drivers side on GM trucks, like 5-10in behind the front o2 sensor usually.

Ok that's close to the 2nd bung location. Would that be aceptable? I am catless.

[5FDP]

If the 2nd bung spot is just there with no sensor in it, yeah just stick the wideband there.

I've done that many times when headers come with extra bung spots.

[RobertT]

Thank you

[Alvin]

Ok guys I'm back. I want to know where I need to put the bung on a 2 into 1 exhaust. I have ARH long tubes and im aware of the clocking positions of the sensor. But how far back from the y pipe connection does it need to be?

closer to the engine is more important than reading both sides. You can't tune sides apart from each other anyway. If any of you have been on a engine dyno with 8 sensors you would be appalled at the difference cylinder to cylinder even on stock stuff. I'm talking 1-2 AFR points between richest and leanest cylinder and they don't back up. The next pull might be completely opposite.