Toyota and Subaru’s original equipment manufacturer (OEM) has developed a clutch pedal that is comfortable and soft for regular street driving by using an 11/16″ clutch master. In certain racing situations, it can be challenging to determine the clutch release point accurately. This can lead to clutch riding or stalling, eventually damaging the clutch system. Working in combination with the OEM 13/16″ Clutch Slave, HFM.Parts has developed an upgraded 5/8″ Clutch Master that can be directly bolted on. The upgraded HFM.Parts Clutch Master reduces the amount of clutch fluid which increases the pressure within the system; this results in a more positive engagement and a firmer pedal.