The pressure differential between the two sealed champers creates a dynamic force which overcomes the spring force inside the actuator

especially at high lock angle

Nissan S14 S15 Rear Suspension Kit MOD

1 x ⅛ NPT boost reference port

Clutch Kit - Xtreme Performance Heavy Duty Cushioned Ceramic KHN23001-1C CVR8 The pressure differential between theXtreme Performance Cushioned Ceramic kit 1C Recommended for: Motorsport ApplicationsThese kits are available with cushioned ceramic friction discs and are designed for motorsport applications where higher heat and torque capacity is required. These can also be used in some road applications. Specifications: Torque capacity Increased Clamp load Increased over standard Cushioned Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you