Not sure if your question is asking what you think it does...
How do you put one in is as easy (theoretically easy) as unscrewing your current one and screwing in a Wideband one. It can be hard because they are on reallllyyyyfracking tight!!! And on stock manifold, sometimes in weird spots.
Im guessing not many here HAVE put in Wideband sensors, because their cars dont have the technology to use the data that it provides.
Without going into the chemical details on how Narrowband/Wideband work etc, this is how I explain it to myself.
Due to the internals in the narrowband sensors, they can only detect changes in AFR in a short (narrow) spectrum around 14, because of this the ECU thinks of the car either running rich or lean, and not half rich, or half lean, etc. its one or the other.
Widebands are made differently, and can detect a much wider spectrum in AFR, and can hence give the ECU data which tells it not only if its lean or rich, but also how lean or how rich it is.
So as D3x said, you can install a wideband sensor, but your stock ECU isnt designed to read this type of data and therefore you will need aftermarket ECU. If you just want to have a wideband gauge, you can install a second O2 sensor bung in your exhaust and run a narrow for ECU and wide for gauge.
Hope this helps.
Also anyone feel free to correct me.