GiroDisc 05-09 Ford Mustang GT500/Boss 302/GT (S197 w/Brembo) Slotted Front Rings

GiroDisc replacement cast iron rotor rings for the 05-09 Ford Mustang GT500/Boss 302/GT (S197 w/Brembo), front axle. When the iron is worn or heat-checked, you replace the rings and keep the hats — the reason a two-piece rotor is cheaper to own over time.

About replacement rings

• Rings only — aluminum hats are not included.
• New installation hardware (cap screws, hardened washers and anti-noise spring washers) is supplied. GiroDisc does not recommend reusing old hardware.
• Slotted friction surface with curved internal cooling vanes, same specification as the original assembly.

These rings are machined for GiroDisc hats and will not mount to factory center hats.

Fitment

• Vehicle: Ford Mustang (S197)
• Axle: Front
• Manufacturer part number: D1-081

Important fitment notes

• Caliper-specific fitment: S197 w/Brembo. Check the brake package on your car before ordering.

What you get

• Priced and sold as a pair — one axle set of rings, plus new mounting hardware.

Shipping & returns

• Orders are processed within 1–3 business days; standard delivery is 3–7 business days within the United States.
• We currently ship within the U.S. only. See our Shipping Policy.
• 30-day returns on unused parts in original packaging — see our Return Policy.

Installation at Team ANBD

Team ANBD is a performance shop in Andover, New Jersey, and brakes are what we do. We handle big brake and rotor installation in house and can bed the system in and align or corner-balance the car in the same visit. Book an appointment or ask us about fitment before you order.