GiroDisc Audi B5, B6, B7 S4 300mm Rear Rotors

These are lightweight two piece rotors that are made specifically to be used on the B5 S4 with the Stasis or 034 Motorsports rear caliper bracket allowing the use of a larger 300mm rotor.  This is a complete replacement of the hat and rotor so you no longer have to source replacements through the defunct Stasis.The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum.  The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc.  The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and ra