Is this what we have on our cars? (mine is a 1995/1996 2.7 F355): Metri-Pack Pigtails | Metripack Pigtails | Pigtail Connector | Automotive Pigtails Thanks.
Have no idea but there is a well proven solution already that several of us with 355's have. Check out Mr Helms (Scuderia Rampante Scuderia Rampante Ferrari) to see his Gold Connector kit.
That looks like them but it is hard to tell unless you have them side by side. The insulation and the connectors look right. Those seem to be the ones for the components/sensor connection. The DME ECU connector is different and need different sizes as well. Sourcing those was done by Ernie some time ago but not gold, just tin replacement. Good luck and post your results.
I am aware of the gold connector kit, the question was around these connectors as I need to build my own test cable with pushbutton for testing the ECU.
I ordered a bunch and was also in touch with the manufacturer so I'll post what I find out when I get them. It'd be nice to have the odd replacement especially since some of the harness ends on my car are questionable.