Manifold flaps

[Audidothat]

Hello all

Please have a look at the attached image I took a moment ago whilst fettling.
Looks potentially serious to me.
I have no idea how long this has been like this, there is no noticeable change when driving, but looks like something has sheared internally.
After driving one airbox was hot to touch and the other noticably cooler, a symptom of a one sided issue?
Anyone have any ideas and/or experienced this before?