I find that claim odd. I contacted TKX dealer, and asked about the cyro upgrade service they offered. Seemed logical that the unit must be disassembled for that personal service.
So I thought, well if that is the case ( pun intended) how about adding a tap in the housing while its opened up, so i could add a trans electric pumped oil cooler for road race, assuming I would use the fill plug or vent for the return, at their advice.

They said they have never done that, and it would "void the warranty", but the cyro will not? eek

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.