Guys I've search around and found a lot of threads talking about where to locate the wideband sensor, before or after the cats.
I have a 2014 Silverado want it to test the wideband and, I read that some put them before and some after the catalyst. Well I don't have to much room before the cats it's like 4-5 inches of pipe after the manifold and on my manual it says to install it from 12/15 inches after the manifold or it can damage the sensor to close to the manifold.
What is the difference installing the sensor before and after the cats.