Wideband o2 sensor location

[lewma]

All

I'd like to install a wideband o2 sensor to continue my tuning adventures with my LS. Has anyone else added another bung to their headers ? If so, where did you place it ?

Any help would be greatly appreciated

Here's a pic of my current headers/exhaust with the narrowband o2 sensor

205297

mark

[Its Bruce]

Passenger side pipe just downstream of the 4 into 1, where it's parallel with the body. Yes, it's angled downward, which isn't ideal, but it works. FWIW, I use narrow bands for stoich tuning and wideband for open throttle tuning.

[lewma]

I was able to get a bung welded into the driver side header ( they were easier to remove than the passenger side headers )

205403