I have the Y1/M&H harness and agree it is a good harness. There are lots of choices for non-stock harness but not much stock replacement. I used the M&H harness to re-do my mostly engine compartment, mostly stock instrument panel and wiring and modified it somewhat for high current alternator and EFI. I was glad to have all the stock bits including pass compartment and instrument cluster referenced to the stock wiring diagrams.
Did th entire car, engine, under dash, rear, console. Good quality. My only issue was they didn't have a patch for the console tach.
