ACDelco Professional Disc Brake Rotors provide reliable vehicle braking power and are the ideal high quality aftermarket replacement for many vehicles on the road today. They feature a thickness variation that is less than 0.0004 to minimize pedal pulsation, noise, and help to extend brake pad life. These rotors meet the SAE standard for structural integrity with OE matched G3000 qualified material delivering guaranteed performance. Also, no machining is required. ACDelco Professional Disc Brake Rotors are ready to be installed right out of the box. These premium aftermarket replacement disc brake rotors are manufactured to meet or exceed your expectations for fit, form, and function.