WHY MAGMA? - Today's harsh braking environments can create very high heat levels in your braking system which can reduce the vehicle's ability to stop. Extreme high temperatures can be reached in many braking situations such as - Stop and Go Traffic, Mountain Driving, Hauling or Towing, Emergency Stops, Spirited Driving and Long, Sustained Braking. At MAGMA Brakes, we use FIRE to fight FIRE. Our brake system components are made using advanced, state of the art techniques and treatments that ensure our brakes will stand up to the heat.MAGMA Premium Rotors feature...1. Premium Rotors are made from G3000 high strength iron using a computer controlled casting process to ensure smooth, balanced braking2. OEM style cooling vane design effectively dissipates heat, allowing for more efficient stopping power by keeping rotors cooler longer3. A non-directional swirl surface finish ensures even pad performance