Floating 944 calipers were standard, but the rear wheel brake circuit pressure regulator from the 944 turbo was used. Source: Internet
The unit consisted of a cylinder of compressed air carried on the back of the diver, connected to a pressure regulator designed by Le Prieur adjusted manually by the diver, with two gauges, one for tank pressure and one for output (supply) pressure. Source: Internet
Maintaining the correct fuel pressure is done by a fuel pressure regulator. Source: Internet