Thanks for posting eveyone. Probably depends on what day of the week your bike is assembled.

My plan is to move the plugs on my bike so they match the manual, that way it will be simple to remember.

Gray (front plug) goes to front pipe.
Black (rear Plug) goes to rear pipe.

 

Just a BTW but I installed a PC-V last week and was a bit worried about leaving the O2 plugs exposed after I disconnected them. After a bit of thought I ended using condoms and small wire ties over the top of them.