SWEET, yours are the same part # as mine, 951.331.513.OR (514.OR on the right) so I CAN use *these arms* with ATE calipers :agree:
SOOO... I should be able to use 87+ 944S rotors which are a 10mm smaller outside diameter than the turbo rotors I have, and will fit the deeper Turbo hub.
Time to buy some rotors...

Thanks for the help guys.