A2-146 GIRODISC PORSCHE 991 REAR ROTORS 13.01.10025 Outside Length/Base Outside Diameter (mm):

Outside Length/Base Outside Diameter (mm): 270

2008 Porsche 911 Carrera 2S Iron disc

or the rear AP Racing BBK

13 in (283 mm) Product Box Width 3

2022 Porsche 718 Cayman S with PCCB

A2-146 GIRODISC PORSCHE 991 REAR ROTORS 13.01.10025 Outside Length/Base Outside Diameter (mm):The Girodisc system is a direct replacement for the rear OE disc on the 991 GT3 and GT3 RS with OEM iron rotors. No modifications are necessary, allows use of factory unmodified pads unlike most aftermarket solutions for this application. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as