o2 sensors in same down pipe
the computer only adjusts the fuel ratio with them on closed loop, also remember their not that accurate, so i wouldnt trust them for a true reading, best way to get a good reading is to use a wide band where it needs to be placed about 6" or more from the downpipe.
so the o2's will get a reading from the downpipe, might even adjust the AFR in closed loop mode, but they will no longer be able to adjust the seperate banks correctly and readings may be off a smiggen.


