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.