Wideband

As much as we drive these cars I would not worry about the sensor going bad. I have an AEM unit. I too will be using NOS. I have not chose a spot as of yet for mounting in the exhaust system. The sensor should be at an angle so condensation does not build up on it like stated earlier above.

Mounting it in your X Pipe you will not get an accurate reading. The sensor may not even get hot enough to operate correctly.