Is this from a previous canisterectomy?

I've been trying to determine if my Canadian Superduke is US or EU spec. I bought the bike used.

There is no charcoal canister in the tail.

I removed the SAS and 2nd flies when I installed the MH box.

I currently have a modified Akra map in the bike (when I bought the bike it had the KTM Akra map loaded, I have since turned off the SAS, O2 sensors and 2nd flies).

In researching the canisterectomy to see if mine had one prior to my ownership, I've found this hose setup with a hose coming from each cylinder head, below the throttle body, connecting at the "Y" junction, and heading off to parts unknown;



If I'm right, this is part of the charcoal evap system that I no longer have. Where does the other end of this go?

OK, I got paranoid right after posting this so put off my workout so that I could find the answer.

My question as to whether Canadian Superdukes are US or EU spec has been answered; they're US. I located the lines that originally went to the canister, instead of re-routing them them previous owner tucked them up by the tail light so I couldn't see that they terminated there. The rest of the system is still in place, as evidenced by the picture I posted. I lifted the tank and the valve in front of the airbox is still there.

It's my plan to re-route the tank vent down under the bike and remove the return line altogether. I also plan on removing the lines to the cylinder heads and capping them off. Seeing as those lines connect to screw-in fittings in the head, does anyone know the size I'll need to replace them with to cap them off, or even better, what's the part # for the plug that's in the EU bike? I'll likely leave the valve in place as it's small, out of the way, and would require a resistor to get rid of the error code its removal will generate (although if I load an EU map, will that take care of the code?)

Where does the other part of that Y-piece going to? I can't see any reason why there should be a join like that? From the pic that hose is coming off the point where the ECU reads vacuum pressure off the rear cylinder. There should just be a hose coming off that to a sensor by the BGC. I'm at a lose to know what the hell is going on there. Does the bike run ok? Is there a similar setup coming off the front cylinder throttle body on the opp side of bike?