i believe its the old version, theres 2 types & the one currently released.
The first version was adjustable, 2nd batch realease was non adjustable ( no screws at back)
the new version has some sort of groove or fins on the side ( new design). ( pls correct me if am wrong though)
In regards if this fits r34gtt, that am not sure, cos am not sure if you have same flange as to where your stock bov is
attached to, from looking at the pic i posted can you check your pipe that goes to your plenum if its the same? or can somebodyu confirm if this fits a r34gtt pls