This carbon Kevlar material requires a one-time installation or burnishing procedure to be done before they are ready for racing. Burnishing is only needed when new pads are being installed.
THIS PROCEDURE IS VERY IMPORTANT TO ENSURE PROPER WEAR AND THE BEST POSSIBLE PERFORMANCE FROM YOUR PADS.
First, begin by applying the brakes at low speeds to assure proper system operation. On the race track or other safe location, make a series of hard stops from moderate to slower speeds. Gradually, increase the speed and the braking until the pads reach a hot racing temperature. If your car has brake cooling ducts, you may want to close them to hasten the process. If any brake fade is experienced during the bed-in, immediately begin the cool down process.
Second, allow the material to cool completely after it has been brought up to operating temperature by this burnishing procedure. Drive the car at slow to moderate speeds while the pads begin to cool, be sure not to drag the brake pedal. Pit or park the car with minimal brake use and allow the brakes to finish cooling before subjecting them to race conditions. This procedure will minimize pad wear and maximize friction values over the broadest possible temperature band. DO NOT SAND THE LINING OR THE ROTORS AFTER THIS PROCEDURE HAS BEEN COMPLETED.
Now, your pads are ready for Racing!