CJ610 question (LR24)

[cyork25]

I just saw that there is a 6500 TBO available on the CJ610-8. I was wondering if anybody knows the details on that and if it is available on the CJ610-6 (what i fly). We are a part 91 company if that makes any difference and we are at a 5000 hour TBO now, just wondering if there was an extension out there.