It the Fast air/fuel wide band 02 meter, it has 2 sensors, to read both of the engines exhaust outlets. so you can have a reading of the L and R side of your exhaust. just like to know if anyone has one, and if they like it.
i was looking at this as well. does anyone know if this thing is compatible with the pms, as i was looking at the pms to start tuning myself. heres a link to the fast wideband setup.