Not really sure what kind of information you are looking for, but as far the Autometer gauge goes, I love it. I for one am not going to go out and spend $300 on a damn gauge. Screw that!! The Autometer gauge works fine. I just hooked it up to B136 #18, which is the narrow band (rear) sensor. I have no problems getting reading from mine, because I have no cats, but if you have cats I would recommend buying a new O2 sensor and tapping into the pipe. Much easier without cats.