No experience of this at all
@VladTepes but seems damned expensive for what it purports to do - just “clear” error codes? In my experience, on a GSX1400 the code clears itself once the problem is fixed, I’ve never yet come across a question such as “I’ve fixed the problem, now how do I clear the code”.
As for years - I’d guess the plug that fixes to the ECU is the later plug for the K5 -> machines.
So IMO it’s a bit of kit for fixing a problem which doesn’t exist.