so i just found out that my car has 2 O2 sensors when wiring an air to fuel gauge would i wire it to the one be for the cat or after?....or both??
before

Im a Xbox 360 fanboy...and damn proud of it!!
If you buy a wideband it will have instructions on exactly where to mount it. Also you will weld in another bung for the wideband so you are not tapping off your wires for the stock 02 sensor.

FORGET GIRLS GONE WILD WE HAVE GOVERNMENT SPENDING GONE WILD!