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Jeff,
You might check with Vision Motorsports and see if they can help you identify which one it is.
They made different HP level turbos, made some changes through the years, and had a ball bearing option. In all they were a great upgrade that was truly bolt on for a 930 and had more efficient hot and cold wheels than any of the factory K27's.
It might help to measure the compressor inducer and turbine exducer sizes if nothing else.
It is a safe bet it is a better option than a K27-7200, easer to install in a 930, and a lot less than a new 7200.
It probably requires a custom oil supply line that restricted oil presser at higher rpms.
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