This is an 2001-2002 Gsxr 1000 callipers they bolt on, stock mc… NOTE: The bleeding job takes time, make sure when you are done bleeding the brakes pull the brake lever all the way to bar and tape it so that the remains air bubbles rise up over night 😤😄

 

Hope it works out for you. I recall reading, however, that many GSX-R owners back in the day swapped out the 6-pots for Nissin 4-pots from Honda CBRs, citing the latter's superior performance