Stoptech Sport Slotted Brake Rotors Front Left for Honda S2000 '00-09Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where StopTech's Sportstop slotted brake rotors make a big difference. Features: Engineered Performance Rotor Superior resistance to cracking due to thermal stress Increased molybdenum