I have a Mk2 petrol vrs and need some help identifying a part (blue arrow). One of the 3 hoses is split but I'm having trouble identifying it. The part number is not clearly visible either 🙁. 

It looks like part of the turbo boost plumbing but without your engine code and year it's hard to be more specific.

Where does the downwards pointing hose go to if you follow it? Brake servo? Is it that one with the split? Where the rigid hose goes over the hose barbs of the one-way valve?