I know its not from the intake or the valve covers. It looks like something from maybe the front or rear seals..maybe? It looks to be the right size if it was complete.

So max, if those pieces impedes enough oil flow do you think it could cause the tapping? I do notice it more when stopping ,like the oil is shifting and maybe not getting enough coverage.

I just know I miss driving it, even though I have 800 new choices on the lot I can take home. F150, F250...etc.. mustangs just not the 2015 yet.