The 6R here in the US doesn't have a O2 sensor. But from working on the FZ8 and FZ-09 the narrow band sensor will over ride the PCV in cruising range. So basically it will work fine with or without it. If you do the DIY kit your O2 sensor stays in place. Disconnecting it will put the ECU in safe mode and the PCV will do it's things. If MPG is your biggest concern, keep the O2 sensor in place. If not disconnect it.I'm concerned about this as well if I go with the marthy exhaust and pcv will it screw up my 02 sensor or does it not interfere if I leaves it plugged in? Anyone have any experience with this? I'm in ontario canada so I'm not sure if we have an 02 sensor or if all the bikes do.HTML:
Thanks in advance