I got this info from Linux, props for the great info 
The part number for this PCV valve is JE26-13-890 and retails for $20.25
It comes from the 92-95 929 JE-ZE engine and has also been used in the Millenia's KJ-ZEM engine that makes ~14psi of boost. The significance is that it is a direct fit/replacement for the stock piece. You will NOT have to hack up your plastic cover, or remove it to make the valve fit/work.
The part number for this PCV valve is JE26-13-890 and retails for $20.25
It comes from the 92-95 929 JE-ZE engine and has also been used in the Millenia's KJ-ZEM engine that makes ~14psi of boost. The significance is that it is a direct fit/replacement for the stock piece. You will NOT have to hack up your plastic cover, or remove it to make the valve fit/work.