Sorry for the late answer, been pretty busy the last couple of days!
Nope, no reducer in that pipe atm.
Looks like you're right, there is a reducer in the pipe coming from the intake, close to the cam cover, never noticed that.. I have all the stock breather pipes, so I was able to find it:
I think it's the correct hose at least.. This is how it looks:
Is that reducer needed?