Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings
Refresh the stopping power on your 2013–2014 Shelby GT500 with Girodisc Rear Replacement Rings. These direct-fit rings let you reuse your existing Girodisc aluminum hats, restoring like-new braking performance while keeping costs and downtime low. Each pair arrives with new hardware and clear instructions for a clean swap.
Engineered to run hard and cool
Girodisc rings are machined in the USA from proprietary cast iron and use a race-developed curved vane design that pumps cooling air through the disc. The result is consistent pedal feel and fade resistance whether you’re carving back roads or running open-track sessions.
Features
- Sold as a pair; includes new replacement hardware
- Direct replacement for existing Girodisc two-piece rear rotors
- Reuse your Girodisc aluminum hats to save money and time
- Proprietary U.S.-poured cast iron for durability and heat control
- Curved vane internal design promotes efficient cooling
- Precision machined and finished in the USA
Vehicle Fitment
- 2013–2014 Ford Mustang Shelby GT500 (S197 chassis) equipped with Girodisc two-piece rear rotors
Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings FAQs:
Do these fit OEM or other brands’ two-piece rotors? These rings are designed only for Girodisc hats and will not fit OEM two-piece systems or other aftermarket brands unless specifically noted.
What’s included in the box? Two replacement rings with new hardware and installation instructions. You’ll reuse your existing Girodisc aluminum hats.
When should I replace my rings? Replace when the rotor reaches minimum thickness or if you see heat checking, cracks, or other signs of distress during inspection.
Do I need to replace both sides at once? Yes, replacing rings in pairs keeps braking performance balanced side-to-side.
Can I install these at home? Experienced DIYers can perform the swap, but professional installation is recommended to ensure correct fastener torque and safety.
Do I need new pads? It’s a good time to inspect pads; switching to a compound matched for iron rotors can optimize bite and wear.
