PON1000XS / DBA4040XS.3 - Application Notes Brake pros is proud to offer high-performance rotors for the Pontiac GTO. These rotors incorporate Pillar Vane technology for maximum cooling and improved performance. Featuring a series of 144 diamond and teardrop pillars that greatly increase cooling efficiency and strength while reducing weight. Based on the same principal as a centrifugal pump impeller, this network of pillars increases the flow of cool air from the center of the disc to the outer edge. The turbulence created by the stream of incoming air around the pillars helps pump out the hot air, which has built up within the ventilated disc. In short the rotor disc is cooled faster and more evenly than previously possible, by up to 20%. KEY FEATURES: Cross-Drilled / Slotted - Rapidly expels friction gases and reduces glazing of pads. Pillar vane Technology - Up to 20% better cooling, Lighter and Stronger. Heat Dam - Reduces heat build up in bell area. Thermo-Graphic Temperature Monitoring System - To determine operating temperature of brakes on your vehicle.