Ok so me and my buddy are installing a FMIC on his 2002 20V GTi. and ehhhh yeah when we took the Cold prpe off the Side mount this is what pured out of there. and so I went on ahead to inspec the rest of the system and this is what I found the TB was not too bad but maby cause it was facing down.? andthis is the sidemoutn flooded with Oil. I thik the turbop seals might have gone bad. he still has only a muffler no piping or test pipes or antiohing like that. the turbo spool is pretty damn loud and ehhhh its fully spooled at about 3K still on stock everithing minus a cone flter and Ebay muffler with Turbo XS bov.
same as mine, you apparently get a bit of oil in the i/c, i think oil in your T/Body is more serious.