The GiroDisc 2-piece rotor system is a direct replacement for the OE rotor, no modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. Once the Girodisc system is in place, simply replace the cast iron rotor ring when needed. The average Girodisc 2-piece rotor is approx 2kg lighter per rotor then the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.
Please Note: These GiroDisc front rotors are a direct replacement for the OE disc however a different brake pad with an annulus (pad swept area) of 80mm or less must be used. This is done to keep the rotor weight at a reasonable level. The necessary pad shape is FMSI 1741.