https://youtu.be/mJJl-54E1Ms

I found this video that is a slip on yoshimura exhaust for the z6 there is even a box in the background but yoshimura says they don't make one. Any help?

It may be one from a road bike, modified to fit.

I found out from yoshimura that it is from a rhino 700 that they modified to fit.

There is alot of room back there, you can mod just about anything to fit.