UNTESTED Engine Control ECU ECM Computer For 90-92 300zx M/T Turbo W/ NISTUNE

USED-DATSUN 5246. Condition: Core.
Interchange: A18-A77 MC1; 23710-41P70
A18-A77 MC1K
possibly was loaded with Nistune. Not sure. Got as part of an estate sale. Sold as is as shown. SEE ACTUAL PHOTOS WITH COVER OFF.