The noise vibration culprit is the brushed aluminum shield with the screw in the middle of it. The black cover that looks like a shield isnt removableWill take ex a look for this screw of which you speak shortly. Cannot see screw scv so one must feel it and get a wrench on it I assume.
and is welded to the muffler. It cant vibrate, but the aluminum cover vibrates badly without the tabs in the slots surrounded by the rubber sleeves.
They are very tiny.