Your bike will have cats, probably in the header if running stock setup.
I don't know about older years, but certainly my 2012 has the cats in the header pipe (well had, I'm running '06-07 ZX14 headers now which are sans-cats).
If you really want to know fo sho, just pull off your muffler (5-10 minute job) and look in the header pipe where the mid pipe connects. See a little honey comb, you got cats.