thats why they have engine covers, out of sight out of mind.
odds on oil is migrateing out from the intake somewhere, they do that the block is vented into the air intake so the whole induction system is full of oily crap after they've done a few miles and it weeps out. all over the place and looks nasty but is normal tbh.
wait till you take the pipes off and look inside

it'll all be oily.
as for the boost pipes those clips to be fair to them [work well when there new but over time they wear loose once it's blown it off once it'll be a right thingy and do it repeatedly a lot of people do gash granny knotes arount them with wire, that sort of sorts it for a bit