Inlet manifold Co flap broken off

[spannerrash]

Hi all
After replacing my knock sensor I was in the process of replacing the inlet manifold when I noticed something in cylinder 6 runner (see pictures).

I have been chasing a slight miss fire / rough idle for a little while now and maybe this is it. I can't get the piece out and have checked the cylinder with an endoscope and can see no damage to the piston, cylinder walls or valves. It looks like I may have dodged a bullet there.

What are my options? It's clearly a piece of the variable inlet runner and even though the manifold looks like it should split I doubt very much it's going to want to. Even if I could split it would I be able to get parts?

Is this the correct part number? 077133185AS.

Honestly guys, I'm getting really fed up with this car. I try to do everything I can to maintain her correctly using only genuine parts where I can and yet she just keeps constantly kicking me in the nuts. Whatever happens her is going to be expensive, I can just feel it.

Thanks Frank