At the core, the PFC ZR31 caliper provides immense stiffness that is unmatched in the segment from the monobloc design with the integrated bridge. The caliper geometry was designed for Champ Cars and the street versions look almost identical since they are only modified for thinner street pads. This exact caliper was the FXMD race caliper which does not have dust seals.
Underneath we can see the scalloped-out piston area to reduce weight. This caliper is the street version with dust seals and piston caps to handle various weather conditions that requires less maintenance.
The caliper features PFC’s classic “Performance Friction” logo as well as “Z-Rated” which encompasses their street line of products.
Each piston has its own brake pad. In addition to the stiffness of the caliper, multi-pads add another performance advantage layer to improve brake pedal feel and modulation.
Even the caliper brackets are beautifully machined works of art.
PFC developed proprietary metallurgy for their race and street rotors to ensure they will not warp or crack. The 14” PFC rotor is substantially larger than the commonly used 13” rotor size. The dimples provide a minor cleaning effect to the pad face in a similar way as slots, with less noise, while not creating stress risers like cross drilling a rotor.