Oil Leak turbo manifold...?

[fisher89]

Hey everyone.
There is a slight leak from intake manifold and turbo pipe on my newly purchased gq.
I am not sure if I should be worrying about it and just replace the gasket or could it be a problem with the turbo or was the guy I bought it from using too thin a oil.
also when I shut of the engine the turbo winds down fairly loud it could just be that I didn't notice it before but I believe its getting louder..

It's got a DTS turbo kit about 2 years old..

here is a couple of photos of the pipe one before I cleaned it and another after its been cleaned and driven on 2 drives probably about 10k's each...

Also what works better gasket goo or cut your own gasket? or is it much of a muchness just looks messy haha

any advice would be much appreciated!!..