The group gearbox/rear suspension.
All OOB, a part of changing the dampers with other black:
This pic was taken from an English magazine of the time (may be Autosport):
Only to demonstrate that the thing on the right of the pic which I don't know the English name (where the suspensio arms were attached and where the hub passes through) is not black as the kit instructions say.
There are not the brake wires which will be placed next.