Oil leak from exhaust clamp cause?

Hi all,

I've a Skoda Rapid 1.6 cayc and there is a bad oil leak from the exhaust clamp where the exhaust/dpf is clapped onto the turbo and the car is smoking bad.
Thinking it was the turbo I got mine reconditioned and refitted it but it was still the same oil leak and a new whine coming from it. So I then got a used turbo because of the whine and now the whine is gone but still leaking oil from the clamp.

Things I done so far:
2 turbos,
Oil return pipe clear,
Crank case breather pipe off and no serious blow,
Intercooler cleaned out,
New cam cover gasket kit,
Removed lambda sensor before dpf at turbo and the oil is spitting out this hole.

Anybody seen this before?
Would appreciate your help,
Thanks