Had a play around with the exhaust today.
As you can see this is going to be a real challenge. Either way I think I will have to loose the rear mounts that would connect to the rearsets. Not sure how I am going to fit everything up. The right side would be easier if I lost the pipe that has the restrictor and mounting point altogether which is disappointing.
Not sure what I am going to do yet. And the left side is going to be just as much of a challenge.
As you can see the bend from the header sits a lot further back. I could either chop a lot of the Arata link or chop a bit off the Mori

both I don't really want to do so I'm thinking I may just disconnect the small elbow pipe that comes off the Mori's that includes the rearset mounting point and replace with a different mandrel bend similar to how it was before.
None of my options are ideal, I don't mind disconnecting the Mori bend on the left as this keeps it as is without butchering it anymore than it is. But on the other hand it has already been butchered by the previous owner so should I just go ahead and cut it further back right on the apex of the bend loosing the exhaust rearset mounting point. This would at least allow me to keep the part that attaches with the spring underneath the rear link pipe by the shock.
The other side (right hand) well, I would ideally like to keep the Mori restrictor but this will be messy to make fit. It would be so much easier and tidy looking to just remove that complete section and clamp the Arata link straight on. Do I really want to loose the restrictor, it's there for a reason.
Not sure what to do now, so shall have a think about things. I will most likely go with the least destructive and easier fitment for now. which means just removing both Mori end elbow pipes that consist of the restrictor (right side only) and rearset mounting points.
That's this one for the right side by the spring.
And here's the restrictor that is inside this part.
And the left side you can just see the other side (torwards top of pic) under where the rear cylinder link connects.
Things would be so much more simple with standard headers but then it would rust.

Also I would need a new one as the one I have taken off the bike has had it's day.
The way I see it....at least the main sections of the header would remain. But I'm sacrificing the restrictor and those nice elbow pipes that are connected by springs to the main pipe.
So all that would remain is this....
and this minus the smaller pipes that attach to this including the restrictor....
(:-})