Would like to see some pictures of O2 sensors on an o4. Dont have access near the front ones. Can I install next to rear ones. Does it make a differance?
Don't have pics, but I have done many wideband installs, on my cobra and other peoples cars. As long as the sensor is before the cats, you are fine. Try to keep it anywhere between 9 oclock and to 3 oclock also, you don't want it pointing down.
