Hey folks. I know they have different part numbers but can someone verify if the holes on the top of the black box are different between GS-R and ITR? I know the GS-R ones had the PCV valve fitted in whereas the ITR had a joint valve instead with the PCV valve mounted on the intake manifold. I wanted to know if I could just buy the grommet made for a GS-R so I can put the PCV valve onto my ITR black box? Or if I needed to get a GS-R black box.... would it bolt up to the ITR block? Thanks in advance