There is No need for you to replace the stock BOV you already have.
Skylines use a Plumb back setup where the BOV releases the pressurized air back into the system via the BOV return pipe which lets the air return back into the intake pipe, between the Airflow Meter and the turbo where it will be used.
This air has been measured by the Airflow Meter which tells the ECU how much air and the ECU then allows a suitable amount of Fuel to go with it.
The BOV you ask about, is an Atmospheric BOV, meaning that it will release the Air outside of the Engine.
Doing this, the ECU will have allocated so much fuel to match the measured air, but that air will no longer be in the system so there will be too much fuel. This is notorious for causing the engine to stall in Gearchange and clutch in situations.
If you get an ECU that runs a Manifold Pressure Sensor instead of an Airflow Meter, it won't be a problem and you can use any old BOV you like.
Other downsides to an Atmo BOV is they draw unwanted attention from the Police as they create excessive noise and also the fact that oily vapours are being released into the air instead of being burnt off in the engine.
That and the Tosser/ Wank Factor.
Sell it and use the Funds for stuff you need.
Edit* it looks like an HKS SSQV BOV or a fake one.
Look Here ---->> http://www.dsmtuners.com/forums/bolt-tech/455246-how-spot-fake-hks-ssqv-bov.html