The hybrid pillar vane brake rotor is is our newest release in hybrid rotor technology. The new hybrid pillar vane rotor incorporates all of the same strength and performance of our standard hybrid rotor that has been trusted by thousands of modified racers for years and AFCO's new pillar vane technology in the lightest hybrid rotor package available. At the heart of the pillar vane rotor, each pillar is diamond shaped and precisely positioned to optimize pad surface support thereby eliminating rotor cupping. Each rotor has been manufactured using premium grade alloys for superb thermal shock stability, double disked ground to ensure precise flatness, uses high strength 5/8" wheel studs installed on a 5 on 5" bolt pattern, is the only hybrid rotor slotted to eliminate brake gassing between the rotor and pad surface to eliminate pad tapper and improve surface contact between the rotor and pad, and is rotationally balanced to reduce vibration and improve traction. For the best stopping power, use AFCO brake pads with this rotor. You will not believe what you have been missing out on.