Does anyone know exactly what these hoses are?

 

2007 r56. MCS one comes from the head of the wastegate the other is the one I am thinking PVC?

 

The vacuum pump has vacuum lines that go to the vacuum canister that's mounted right above the passenger driveshaft axle carrier bearing and the other side goes to the brake booster. That is definitely a vacuum line since it's only about 1/4" ID.

There are only two PCV hoses on the N14 engine. They are about 7/8" ID and one comes out of the front of the engine's valve cover and connects to the intake manifold. The other is considered a breather line and connects from the rear of the valve cover and connects to the turbo inlet tube.

BTW, clean your engine bay.