Ford S197 Mustang GT500, Boss 302, GT (Brembo) Front Rotors
Upgrade your S197 Mustang’s braking power with Girodisc 2-piece floating front rotors—precision-engineered for GT500, Boss 302, and GT models equipped with the factory Brembo package. These lightweight performance rotors are a direct OEM replacement that bolts right up to your stock calipers, delivering improved heat dissipation, reduced unsprung mass, and consistent stopping performance on both street and track.
Each Girodisc assembly weighs just 20.2 lbs compared to the factory 25 lb one-piece units, cutting nearly 10 lbs of rotational weight from the front axle. This reduction means sharper handling, quicker suspension response, and faster acceleration. The curved vane internal cooling design, developed through motorsport testing, efficiently pumps air through the rotor to minimize fade and maintain optimal performance lap after lap.
Track-Tested Braking for Street and Competition
Vehicle Fitment
- Ford Mustang GT500 (S197 chassis, 2010–2014)
- Ford Mustang Boss 302 (2012–2013)
- Ford Mustang GT with Brembo brake package
Girodisc A1-081 Features
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Direct OEM replacement: Works seamlessly with factory Brembo calipers—no modifications required.
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Lightweight 2-piece design: Only 20.2 lbs per rotor vs. 25 lbs stock, reducing unsprung and rotational mass.
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Curved vane ventilation: Maximizes cooling efficiency for consistent high-performance braking.
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Floating rotor mount: Allows for thermal expansion without warping or pad taper.
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Premium materials: 6061-T6 aluminum hats paired with Girodisc proprietary high-carbon cast-iron rings.
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Made in the USA: Designed, cast, and machined in-house by Girodisc in Bellingham, WA.
Specifications
- Weight: 20.2 lbs per rotor (approx.)
- Construction: 2-piece floating design with aluminum hat
- Cooling: Internal curved vane configuration
Girodisc A1-081 FAQs
Do these fit my Mustang GT with Brembos? Yes. They’re designed for GT models equipped with the factory Brembo brake package.
Are they lighter than OEM rotors? Yes—each Girodisc rotor saves about 5 lbs, improving handling and throttle response.
Can I use them for track days? Absolutely. The curved vane system provides exceptional heat management under repeated high loads.
Do I need to modify anything for installation? No. These rotors bolt directly to the car with OEM hardware and calipers.
How are they sold? Sold and priced per pair.
Experience race-proven braking performance with Girodisc rotors for your GT500, Boss 302, or Brembo-equipped GT—built for drivers who demand maximum performance and precision.
