Don,t ever ever ever buy replacement disks which involve circlips. They might be suitable for a ped but thats about all.
Personally fitted EBC Prolites's with sintered pads when my 916's Brembos warped.
Can highly recommend for improved braking but can stick on if disks wet when bike put away after rain
actually I presume this is due to cast iron disks rusting a little as opposed to the stainless Brembos not
