Ooops, looked like a Yoshi, have exhausts on my brain at the moment. I would have cut the O2 wire and fitted a new/spare sensor, would a bit of heat not have loosened it. Is a replacement lined up yet ?
The Akro was being removed by the dealer and they did not want to damage it. I have been looking at the replacement cans but have not made my mind up yet may just stick to the original till next year. We will see.