Also i have pretty big 4 wheel disks as the early soarers came with turbos. will i have to change them?
Your brakes are the same size as an MA61. While not entirely necessary to upgrade them, I would at the very least put some decent pads and fluid in to maximise how well they work.
Be warned they may be smaller brakes.
Either the same as MX62 or MX73.
But not all Z10's are the same as MA61