With ABS

Master Cylinder And Vacuum Booster:

A vehicle equipped with the Teves Mark 20 ABS (without traction control) uses a different master cylinder and power brake booster then a vehicle that is not equipped with antilock brakes. A vehicle equipped with ABS uses a center port master cylinder while a vehicle which is not equipped with ABS uses a compensating port master cylinder.

The primary and secondary outlet ports on the master cylinder go directly to the Hydraulic Control Unit (HCU).