The pedal cluster takes a lot of abuse. Rainwater, or brake fluid from a leaky master cylinder has a tendency to collect at the bottom of the driver's footwell, deteriorating both the bushings and cable components of the cluster.
Pressure Adaptor needed for pressuring the master cylinder or clutch slave cylinder reservoirs. Used in conjunction with a pressure bleeder. Comes with a 1/4-18 NPT threaded opening. Applicable to most European models.