GiroDisc Audi B7 RS4 380mm Front Rotors, incl. caliper spacers

The Girodisc system is a direct replacement for the OE disc with the addition of our provided caliper spacers.  Our rotor is slightly larger than the OEM rotor at 380mm versus 365mm providing greater braking force and cooling capacity.  The Girodisc front rotors are approx 22.6 lbs vs. 25.5 lbs for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. 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 12 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a l