This innovative advanced friction product is engineered to meet the exacting needs of professional technicians and demanding applications. PQ PRO Disc Brake Pads combine customer - driven brake friction capabilities with cutting - edge materials to address key service issues brake fade weak braking response excessive noise and high temperatures. PQ PRO Disc Brake Pads fuse Centric Parts legendary first - to - market brake friction research and development with innovative proven fabrication processes. PQ PRO brake pads are manufactured using the positive molding process utilized by original equipment suppliers. Our Opti - Check Early Warning System gives you clear visual indication of pad service life and every set is backed by a One - Year Centric Assured Roadside Assistance Guarantee.