If you take a look at the injectors I was provided you can see the part number on the stem and the housing is pink as shown above.
Upon closer examination you see the part number is 0-280-150-449, which from all accounts are injectors for the F355 5.2 Motronic engine.
If I look at this site:
https://aussieinjectors.com.au/injector-by-number/
I see:
I also found a local dealer for Bosch injectors and received this response to my query:
“unfortunately the Ferrari injector 0280 155 013 are discontinued without replacement or supersession.
The 0280 155 003 is a different generation injector and not a direct replacement”
As for the 0280 155 869 injector I am not sure so have asked the production plant for some clarification if this is available/ suitable for a 355.
So it seems that the part 0-280-155-003 is now also something that isn’t suitable. The stats for that are:
which now only leaves 0-280-155-013
and maybe 0-280-155-869
Thus, I am looking for this:
with the original part number 0-280-155-013
My quick examination of these on the Internet is not looking cheap. But the search continues.