Heat is the primary cause of ineffective brakes due to fading. There is actually a "boundary layer" of gases that builds up between the pad and rotor surface which inhibits performance. Here's where Power Slot rotors make a big difference. The exclusive Vac-U-Slots machined into the rotor "wipes" the brake pads clean evacuates gases and sheds heat. A combination of a "high performance pad" and Power Slot rotors will provide superior reliable braking for virtually all automotive and truck applications with an upgrade to larger diameter rotors and bigger calipers ...