For a long time I have thought I should fit a flexible joint into the exhaust system to isolate the engine vibration from the catalytic converter and silencer. Now I had 3 complete exhaust systems
I felt now was the time. So out came the angle grinder and the result is very good.
Ignore the reflection, I don't have twin exhausts :-)
So now the exhaust consists of the manifold, then a short length of pipe that mounts the lambda sensor, then a short flexible joint and finally the combined catalytic converter and heat shield.
It's a pity that it will all be hidden when I put the heat shield back on. Maybe I won't bother.