Found this in a turbo

half of jordans falsies ?

Can you scale it Gaz?

With say a rule or your wallet to give an idea of size....actually no not your wallet. It will look super small next to that mate

Could have been left behind from a previous repair..... 

Which side of the turbo was it it in? Air inlet,exhaust inlet, any damage to Turbo?

Was in the exhaust side, had to split the turbo to get it out. The turbine blades were damaged but largely still in one piece. Van was running fine except the lack of power and unable to rev much past 2500rpm, no nasty noises etc. Also had a fault code for boost pressure sensor. I think it was jammed in the impellers once the turbo spooled up as I had already checked/spun the impeller from the inlet side, all OK. Intercooler hose was collapsing in on itself when revved indicating a blockage. Had a lot of oil in the intercooler and pipe work too but air box and breather system were bone dry.

It could be a swirl flap from inside the inlet manifold similar to the Vauxhall types. They slide open when needed Gaz

Edited to add:

Like these:

David, it doesn't have swirl flaps.

nitros44, customer has been made aware of the potential problems surrounding the fact that we don't know what it is or where it's came from. He's just happy to get it back on the road in plenty time for the weekend. What could it be from the DPF?

No ode about the first two points nitros44. The cut outs on the outermost part of the blades are damage