GiroDisc Racing Brakes & Technologies
D1-031 Girodisc Porsche 340mm Front Replacement Rings
$780.00
D1-031 Girodisc Porsche 340mm Front Replacement Rings
Restore your Porsche’s braking precision and performance with Girodisc D1-031 340mm front replacement rings. These high-performance rotors are direct replacements for Girodisc’s two-piece assemblies and mount to your existing aluminum hats using the included floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast iron, offering excellent thermal management, consistent pedal feel, and fade-free stopping power on both street and track.
Vehicle Fitment
Compatible with:• Porsche 986 Boxster S (2000–2004)• Porsche 987 Boxster S / Cayman S (2005–2012)• Porsche Cayman R (2012)Note: Designed exclusively for Girodisc 340mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 340mm two-piece front rotors• High-carbon iron alloy provides superior heat control and wear resistance• Directional curved vanes increase airflow and cooling efficiency• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced to eliminate vibration• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 340 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair
Girodisc D1-031 Porsche 340mm Front Ring FAQs
Do these fit OEM Porsche rotor hats? No. The D1-031 rings are designed exclusively for Girodisc aluminum hats and are not compatible with OEM or aftermarket one-piece rotors.
What pad compounds pair best with these rotors? For street use, Ferodo DS2500 or Hawk HPS 5.0 pads offer smooth, quiet braking. For track applications, Pagid RS29 or Carbotech XP12 pads deliver optimal temperature control and bite.
Are these rotors directional? Yes. Each rotor is clearly labeled for left or right installation to ensure proper airflow through the internal curved vanes for maximum cooling efficiency.
How should the hardware be torqued? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. After one complete heat cycle, recheck all fasteners to confirm proper float and alignment.
Upgrade your Porsche’s braking performance with Girodisc D1-031 340mm front replacement rings — precision-built for thermal efficiency, control, and repeatable performance on road or track.
GiroDisc Racing Brakes & Technologies
D1-032 GiroDisc Porsche 350 mm Front Replacement Rings
$880.00
D1-032 Girodisc Porsche 350mm Front Replacement Rings
Maintain your Porsche’s sharp, confidence-inspiring braking feel with Girodisc D1-032 350 mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc two-piece systems and mount to your existing aluminum hats using the included floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast-iron alloy, delivering outstanding heat control, fade resistance, and smooth pedal feedback under repeated high-load braking.
Vehicle Fitment
Compatible with:• Porsche 996 Carrera 4S (2002 – 2005)• Porsche 997 Carrera S / 4S (2005 – 2012)• Porsche 997 GTS (2010 – 2012)Note: Designed exclusively for Girodisc 350 mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 350 mm two-piece front rotors• High-carbon iron construction for stable friction and thermal control• Directional curved vanes maximize cooling efficiency• Maintains OEM brake bias and ABS calibration• Precision-balanced for vibration-free performance• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 350 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair
Girodisc D1-032 Porsche 350 mm Front Replacement Ring FAQs
Will these fit OEM Porsche rotor hats? No. These rings are engineered specifically for Girodisc aluminum hats and cannot be used with factory one-piece rotors.
What pad compounds work best with these rotors? For street and spirited use, Ferodo DS2500 or Hawk HPS 5.0 are ideal. For track days, Pagid RS29 or Carbotech XP12 deliver exceptional fade control and braking stability.
Are these rotors directional? Yes. Each rotor is clearly marked left and right to ensure the internal curved vanes flow air through the rotor for optimal cooling.
How should the hardware be torqued? Tighten each bolt to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after one full heat cycle to confirm proper float and hardware security.
Upgrade your Porsche’s braking system with Girodisc D1-032 350 mm front replacement rings — precision-built for heat management, durability, and track-ready stopping power.
GiroDisc Racing Brakes & Technologies
D1-043 Girodisc Ford GT (’05–’06) Front Replacement Rings
$750.00
Girodisc Ford GT ('05–'06) Front Replacement Rings
Bring your Ford GT’s braking system back to peak performance with Girodisc 355mm front replacement rings. Designed as direct replacements for existing Girodisc two-piece assemblies, these high-carbon iron rings offer the perfect balance of race-grade stopping power and durability for street or track use.
Vehicle Fitment
Compatible with:• 2005 Ford GT• 2006 Ford GTNote: These are replacement friction rings only and are designed to bolt directly to existing Girodisc aluminum hats using the supplied hardware kit.
Engineered for Precision and Performance
Each Girodisc replacement ring is manufactured in the USA from a proprietary high-carbon cast iron alloy, optimized for heat stability, wear resistance, and consistent friction characteristics. The 48 curved directional vanes act as a centrifugal air pump, drawing cooling air through the rotor for efficient heat dissipation under high braking loads. The result is dependable braking performance, lap after lap, with reduced fade and vibration.
Features
• Direct replacement for Girodisc front two-piece rotor assemblies• Designed for 2005–2006 Ford GT• Proprietary high-carbon cast iron construction• 48 curved directional vanes for improved cooling• Machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair
Specifications
• Diameter: 355mm• Position: Front• Material: High-carbon cast iron• Includes: Two replacement rings and full hardware kit• Made in the USA• Sold/priced per pair
Girodisc D1-043 Replacement Ring FAQs
Do these fit the factory Ford GT carbon-ceramic rotors? No. These are only for vehicles equipped with Girodisc two-piece iron rotor assemblies.
Will I need new aluminum hats? Not unless your existing hats are damaged. Girodisc rings are designed for easy installation onto your existing hats using the provided hardware.
Are these suitable for track use? Yes — Girodisc rotors are designed for high thermal loads typical in track environments while maintaining street-friendly operation.
Do the rings include new hardware? Yes. Each set includes new floating pins, washers, and bolts to ensure proper installation and longevity.
Maintain the precision braking your Ford GT deserves with Girodisc D1-043 front replacement rings — American-made, track-proven, and built for performance that lasts.
GiroDisc Racing Brakes & Technologies
D1-047 Girodisc 350x32mm Front Replacement Rings
$630.00
D1-047 Girodisc Front Rotor Rings
Keep your braking system in peak condition with Girodisc D1-047 350x32mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc’s two-piece assemblies and bolt to your existing aluminum hats using the included floating hardware kit. Each rotor is cast from Girodisc’s proprietary high-carbon iron alloy, delivering superior heat control, fade resistance, and consistent performance under repeated high-load braking.
Vehicle Fitment
Universal fit for performance vehicles utilizing Girodisc 350x32mm two-piece front rotor systems, including:• Custom Brembo GT, AP Racing, and StopTech big brake conversions• Track-prepared cars with 350mm iron rotor setupsNote: These rings are for Girodisc aluminum hats only and are not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 350x32mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior thermal capacity• Directional curved vanes promote airflow for improved cooling• Maintains brake balance and ABS function when paired with Girodisc systems• Precision-balanced to eliminate vibration• Designed for track, competition, and high-performance street use
Specifications
• Diameter: 350 mm• Thickness: 32 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and full hardware kit• Sold/priced per pair
D1-047 Girodisc 350x32mm Front Ring FAQs
Do these fit OEM rotor hats? No. These are designed only for Girodisc aluminum hats and are not compatible with OEM cast or carbon-ceramic assemblies.
Which brake pads are recommended? For street and performance driving, Ferodo DS2500 or Hawk HPS 5.0 are ideal. For heavy track use, Pagid RS29 or Carbotech XP10 pads provide optimal bite and temperature stability.
Do these need to be bedded in? Yes. Perform 8–10 moderate stops from 60 mph to evenly transfer pad material to the rotor surface and ensure consistent friction performance.
What torque should be used on the mounting bolts? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. Recheck after one heat cycle for proper float and secure installation.
Renew your braking system’s precision and power with Girodisc D1-047 350x32mm front replacement rings — engineered for control, cooling, and reliability on street or circuit.
GiroDisc Racing Brakes & Technologies
D1-050 Girodisc Audi R8 / Lamborghini 394 mm Front Replacement Rings
$950.00
D1-050 Girodisc Audi R8, Lamborghini 394mm Front Replacement Rings
Restore maximum braking performance on your Audi R8 or Lamborghini Huracán with Girodisc D1-050 394mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc two-piece systems and bolt to your existing aluminum hats using the supplied floating hardware kit. Each ring is manufactured from Girodisc’s proprietary high-carbon cast iron for consistent friction, superior heat control, and fade-free braking under aggressive use.
Vehicle Fitment
Compatible with:• Audi R8 (Gen 1 & Gen 2, all trims with 394mm iron rotor setup)• Lamborghini Huracán LP580 / LP610 / EVO (non-CCB)Note: Designed exclusively for Girodisc 394mm two-piece front rotor systems. Not compatible with OEM carbon-ceramic or one-piece rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 394mm two-piece front rotors• CNC-machined from high-carbon cast iron for strength and thermal stability• Directional curved vanes enhance cooling efficiency and airflow• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced for vibration-free performance• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 394 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-050 Audi R8 / Lamborghini Front Replacement Ring FAQs
Can these be used with OEM Audi or Lamborghini rotor hats? No. These rings are designed only for Girodisc aluminum hats and will not mount to OEM one-piece or carbon-ceramic rotor systems.
Which pad compounds work best with these rotors? For street and light-track use, Ferodo DS2500 or Hawk HPS 5.0 perform exceptionally. For track use, Pagid RS29 or Carbotech XP12 are recommended for balanced heat control and bite.
Do these rotors improve braking over OEM? Yes. The two-piece floating design reduces unsprung weight and increases heat dissipation, giving you more consistent pedal feel and fade resistance.
What torque spec should be used on the hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite, then recheck after the first full heat cycle to confirm secure float and proper alignment.
Bring supercar-level braking consistency back to your Audi R8 or Lamborghini Huracán with Girodisc D1-050 394 mm front replacement rings — engineered for precision, durability, and repeatable performance at any speed.
GiroDisc Racing Brakes & Technologies
D1-066 Girodisc 380×34 Front Replacement Rings
$1,030.00
D1-066 Girodisc 380x34mm Front Replacement Rotor Rings
Maintain the stopping power of your high-performance braking system with Girodisc D1-066 380x34mm front replacement rings. Designed for use with Girodisc two-piece rotor assemblies, these rings bolt directly to your existing aluminum hats using the included floating hardware kit. Each rotor is machined from Girodisc’s proprietary high-carbon cast iron alloy, delivering exceptional thermal capacity, fade resistance, and consistent friction for both street and track applications.
Vehicle Fitment
Universal fit for vehicles using Girodisc 380x34mm two-piece front rotor systems, including:• Performance brake conversions using 380x34mm rotors• Custom Brembo GT, AP Racing, and StopTech systems adapted for Girodisc hardwareNote: These replacement rings are designed exclusively for Girodisc aluminum hats. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380x34mm two-piece front rotors• High-carbon iron alloy construction provides excellent thermal stability• Directional curved vanes promote airflow and reduce heat buildup• Maintains proper brake balance and ABS function when used in matched systems• Precision-balanced for vibration-free braking• Designed for track, competition, and performance street applications
Specifications
• Diameter: 380 mm• Thickness: 34 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-066 380x34mm Front Ring FAQs
Can these rotors fit OEM performance systems? No. These are designed for Girodisc two-piece aluminum hats and are not compatible with OEM or other aftermarket cast rotor assemblies.
What pad compounds are recommended? For dual-use street and track driving, Ferodo DS1.11 or Pagid RS29 pads are ideal. For endurance racing, Pagid RSL1 provide exceptional high-temperature stability.
Do these require a specific bedding procedure? Yes. Perform 8–10 medium stops from 60 mph, then allow the brakes to cool fully. This ensures proper pad transfer and optimal rotor surface conditioning.
What torque should I apply to the floating hardware? Tighten all bolts to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after one full heat cycle to confirm secure float and alignment.
Keep your braking system race-ready with Girodisc D1-066 380x34mm front replacement rings — engineered for precision, endurance, and superior heat control on street or circuit.
GiroDisc Racing Brakes & Technologies
D1-067 GiroDisc Ford S550 Mustang (w/ Brembo) Front Replacement Rings
$880.00
D1-067 Girodisc Ford S550 Mustang (w/ Brembo) Front Replacement Rings
Optimize your Mustang’s braking performance with Girodisc D1-067 380mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc’s two-piece systems and bolt to your existing aluminum hats using the included floating hardware kit. Built from Girodisc’s proprietary high-carbon cast iron, these rings deliver exceptional heat resistance, fade control, and consistent braking feel during both street and track use.
Vehicle Fitment
Compatible with:• Ford Mustang GT (S550, 2015–2023) with Performance Pack (Brembo 6-piston front brakes)• Ford Mustang GT350 (2016–2020)• Ford Mustang Mach 1 (2021–2023)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or carbon-ceramic assemblies.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior durability and heat management• Directional curved vanes increase airflow and cooling efficiency• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced to eliminate vibration and ensure smooth braking• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-067 Ford S550 Mustang Front Ring FAQs
Will these fit OEM Mustang Brembo rotors? No. These replacement rings are designed specifically for Girodisc aluminum hats and cannot mount to OEM one-piece Brembo rotors.
What brake pads pair best with these rotors? For street and spirited driving, Ferodo DS2500 pads are excellent. For heavy track use, Pagid RSL29 or Carbotech XP12 deliver superior bite and fade resistance.
Are these rotors directional? Yes. Each rotor is labeled for left and right sides. Proper installation ensures the internal vanes draw air through the rotor for maximum cooling under load.
What torque should be applied to the hardware bolts? Torque to 12 ft-lbs (16 Nm) using blue Loctite. After one complete heat cycle, recheck torque to ensure proper float and hardware integrity.
Upgrade your Mustang’s stopping performance with Girodisc D1-067 380mm front replacement rings — engineered for cooling efficiency, reduced fade, and consistent braking feel lap after lap.
GiroDisc Racing Brakes & Technologies
D1-070 Girodisc Ferrari 328 GTB/GTS, Mondial Front Replacement Rings
$680.00
D1-070 Girodisc Ferrari 328 GTB/GTS, Mondial Front Replacement Rings
Preserve the authentic driving feel of your classic Ferrari with Girodisc D1-070 300mm front replacement rings. These precision-engineered components are direct replacements for Girodisc two-piece rotor systems, bolting to your existing aluminum hats using the included floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast iron, ensuring optimal heat capacity, improved cooling, and consistent braking performance for both road and track driving.
Vehicle Fitment
Compatible with:• Ferrari 328 GTB (1985–1989)• Ferrari 328 GTS (1985–1989)• Ferrari Mondial 3.2 (1985–1988)• Ferrari Mondial T (1989–1993)Note: Designed exclusively for Girodisc 300mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or carbon-ceramic conversions.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 300mm two-piece front rotors• High-carbon iron alloy provides exceptional heat resistance and stable friction• Directional curved vanes improve airflow and thermal balance• Maintains factory brake bias and pedal feel• Precision-balanced to minimize vibration• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 300 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and full hardware kit• Sold/priced per pair
Girodisc D1-070 Ferrari 328 GTB/GTS, Mondial Front Replacement Ring FAQs
Can these be used with OEM Ferrari rotor hats? No. These replacement rings are made exclusively for Girodisc aluminum hats and will not fit OEM or aftermarket one-piece rotors.
What pad compounds are recommended? For spirited road use, Ferodo DS2500 or Pagid RS42 pads pair perfectly. For track driving, Pagid RSL29 provide excellent high-temperature control.
Are these rotors directional? Yes. Each rotor is labeled for left and right installation, ensuring proper airflow through the internal curved vanes for optimal cooling.
Do these improve performance over OEM rotors? Absolutely. The two-piece design reduces unsprung weight and improves heat dissipation, leading to stronger, more consistent braking under repeated load.
Enhance your classic Ferrari’s braking system with Girodisc D1-070 300mm front replacement rings — engineered for precision, cooling efficiency, and authentic performance worthy of Maranello’s legacy.
GiroDisc Racing Brakes & Technologies
D1-078 Girodisc Alfa Romeo 4C Front Replacement Rings
$680.00
D1-078 Girodisc Alfa Romeo 4C Front Replacement Rings
Upgrade your Alfa Romeo 4C’s stopping power with Girodisc D1-078 305mm front replacement rings. Designed as direct replacements for Girodisc’s two-piece rotor systems, these precision-machined rings bolt onto your existing Girodisc aluminum hats using the supplied floating hardware kit. Each ring is made from Girodisc’s proprietary high-carbon cast iron for improved thermal control, consistent pedal feel, and fade-free braking under demanding conditions.
Vehicle Fitment
Compatible with:• Alfa Romeo 4C (2015–2020)• Fits Girodisc 305mm two-piece front rotor systemsNote: These rings are designed for Girodisc aluminum hats only. They are not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 305mm two-piece front rotors• CNC-machined from high-carbon iron alloy for strength and consistent performance• Directional curved vanes optimize cooling and reduce heat buildup• Maintains OEM brake bias, ABS, and ESC calibration• Lightweight two-piece design reduces unsprung weight• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 305 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair
Girodisc D1-078 Alfa Romeo 4C Front Ring FAQs
Can these be used with factory Alfa Romeo rotors? No. These are designed only for Girodisc aluminum hats and cannot mount to OEM one-piece rotors or hardware.
Do these rotors improve braking over stock? Yes. The high-carbon alloy and floating design improve thermal stability, reduce fade, and enhance braking modulation during aggressive driving or track sessions.
What pad compounds are recommended? For street and light track use, Ferodo DS2500 or Hawk HPS 5.0 provide excellent control. For racing, Pagid RS29 or Endless ME20 deliver superior high-temp performance.
What torque should I use on the rotor bolts? Torque each fastener to 12 ft-lbs (16 Nm) using blue Loctite. Recheck after one full heat cycle to ensure proper float and hardware security.
Enhance your Alfa Romeo 4C’s agility and braking consistency with Girodisc D1-078 305mm front replacement rings — precision-built for lightweight performance, heat control, and lasting durability.
GiroDisc Racing Brakes & Technologies
D1-081 Girodisc Ford S197 Mustang Front Replacement Rings
$730.00
Girodisc Ford S197 Mustang Front Replacement Rings
Refresh your Ford S197 Mustang’s braking system with Girodisc 355mm front replacement rings. Designed as direct replacements for existing Girodisc two-piece rotor assemblies, these rings restore braking precision and fade resistance for street, track, or autocross applications — all while reducing cost compared to a full rotor replacement.
Vehicle Fitment
Compatible with:• Ford Mustang GT (2005–2014)• Ford Mustang Boss 302 (2012–2013)• Ford Shelby GT500 (2007–2014)Note: These are friction rings only. They bolt directly to existing Girodisc aluminum hats using the supplied hardware kit.
Performance-Built Replacement Rings
Each Girodisc replacement ring is precision-cast and machined in the USA from a proprietary high-carbon iron alloy designed for exceptional strength and heat resistance. The 48 curved directional vanes act as a centrifugal air pump, drawing cooling air through the disc to minimize heat buildup and ensure consistent braking performance under heavy use. This design helps eliminate fade and vibration while providing smooth, repeatable braking lap after lap.
Features
• Direct-fit replacement for 355mm Girodisc two-piece front rotors• Designed for Ford S197 Mustang GT, Boss 302, and GT500• High-carbon cast iron for durability and crack resistance• 48 curved directional vanes for improved cooling• Machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair
Specifications
• Diameter: 355mm• Position: Front• Material: High-carbon cast iron• Includes: Two replacement rings and full hardware kit• Made in the USA• Sold/priced per pair
Girodisc D1-081 Replacement Ring FAQs
Do these fit OEM Mustang rotors? No. These are designed only for Girodisc two-piece rotor assemblies and will not fit stock Mustang brake systems.
Will these work with my existing Girodisc hats? Yes — these are designed to bolt directly to your Girodisc aluminum hats using the included hardware kit.
Are they suitable for track use? Absolutely. Girodisc rotors are engineered for endurance and track environments, offering stable braking performance under extreme heat.
Do I need special tools for installation? No special tools are required. Standard hand tools and a torque wrench are all that’s needed to swap the rings and reinstall the floating hardware.
Maintain your Mustang’s stopping power with Girodisc D1-081 355mm front replacement rings — built in the USA for strength, performance, and consistent braking you can trust.
GiroDisc Racing Brakes & Technologies
D1-091 Girodisc Ford S197 Mustang GT500 ('13–'14) Front Replacement Rings
$880.00
D1-091 Girodisc Ford S197 Mustang GT500 ('13–'14) Front Replacement Rings
Maintain your GT500’s braking dominance with Girodisc D1-091 380mm front replacement rings. These performance-engineered rotors are direct replacements for Girodisc’s two-piece systems, bolting to your existing aluminum hats using the supplied floating hardware kit. Each ring is precision-machined from Girodisc’s proprietary high-carbon cast iron for exceptional heat capacity, fade resistance, and consistent braking performance through repeated high-speed stops.
Vehicle Fitment
Compatible with:• Ford Mustang Shelby GT500 (S197, 2013–2014)• Compatible with factory Brembo 6-piston caliper setup (Girodisc system only)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic discs.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• High-carbon iron construction for superior heat management and wear resistance• Directional curved vanes promote efficient cooling and airflow• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced to minimize vibration and optimize pedal feel• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and full hardware kit• Sold/priced per pair
Girodisc D1-091 Ford S197 Mustang GT500 ('13–'14) Front Replacement Ring FAQs
Can these rings mount to OEM GT500 rotor hats? No. The D1-091 rings are made for Girodisc aluminum hats and are not compatible with factory one-piece or aftermarket cast iron rotors.
What pad compounds pair best with these rotors? For street and occasional track use, Ferodo DS2500 or Hawk HPS 5.0 pads are ideal. For track-only setups, use Pagid RS29 or Carbotech XP12 for optimal bite and fade resistance.
Do these rotors reduce brake fade compared to OEM? Yes. The two-piece floating design and directional vane structure significantly reduce heat buildup and resist warping during heavy use.
What torque spec is required for the hardware bolts? Tighten all hardware to 12 ft-lbs (16 Nm) with blue Loctite applied. After one complete heat cycle, recheck torque to confirm proper float and safety.
Upgrade your GT500’s braking precision and endurance with Girodisc D1-091 380mm front replacement rings — engineered for high-heat performance, balance, and repeatable control at any speed.
GiroDisc Racing Brakes & Technologies
D1-096 GiroDisc Corvette C5, C6 Z51 Front Replacement Rings
$630.00
D1-096 Girodisc Corvette C5, C6 Z51 Front Replacement Rings
Refresh your Corvette’s braking performance with Girodisc D1-096 340mm front replacement rings. These precision-machined components are designed to bolt directly to existing Girodisc aluminum hats using the included floating hardware kit. Each rotor ring is crafted from Girodisc’s proprietary high-carbon cast iron, providing exceptional heat management, improved pedal consistency, and fade-free braking for both street and track use.
Vehicle Fitment
Compatible with:• Chevrolet Corvette C5 (1997–2004)• Chevrolet Corvette C6 Z51 (2005–2013)• Chevrolet Corvette C6 Base (with Z51 brake package)Note: Designed exclusively for Girodisc 340mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 340mm two-piece front rotors• CNC-machined from high-carbon cast iron for durability and heat resistance• Directional curved vanes maximize airflow and rotor cooling• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced for smooth braking and reduced unsprung mass• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 340 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-096 Corvette C5, C6 Z51 Front Ring FAQs
Can these be installed with OEM Corvette hats? No. The D1-096 rings are designed specifically for Girodisc aluminum hats and will not fit factory one-piece or carbon-ceramic rotors.
Which pad compounds are best for these rotors? For street use, Ferodo DS2500 or Hawk HPS 5.0 provide quiet, consistent braking. For track days, use Pagid RS29 or Hawk DTC-60 for better thermal capacity and modulation.
Are these rotors directional? Yes. Each rotor is labeled for left or right installation, ensuring correct airflow through the curved internal vanes for optimal cooling.
What torque setting should I use for the hardware? Torque each bolt to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after the first heat cycle or track session.
Upgrade your Corvette’s braking confidence with Girodisc D1-096 340mm front replacement rings — engineered for heat control, durability, and precise modulation on the street or circuit.
GiroDisc Racing Brakes & Technologies
D1-103 Girodisc Porsche 964, 993 Front Replacement Rings
$780.00
D1-103 Girodisc Porsche 964, 993 Front Replacement Rings
Restore classic Porsche braking precision with Girodisc D1-103 322mm front replacement rings. These performance-engineered rotors bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Machined from Girodisc’s proprietary high-carbon cast iron, they provide superior heat management, reduced fade, and consistent pedal feel — ideal for spirited road driving or vintage racing applications.
Vehicle Fitment
Compatible with:• Porsche 964 Carrera 2 / Carrera 4 (1989–1994)• Porsche 993 Carrera / Carrera S / Carrera 4S (1995–1998)Note: Designed exclusively for Girodisc 322mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic discs.
Features
• Sold as a left/right pair with full floating hardware kit• Direct replacements for Girodisc 322mm two-piece front rotors• CNC-machined from high-carbon cast iron for exceptional thermal stability• Directional curved vanes promote airflow and reduce heat buildup• Maintains factory brake balance, ABS, and stability control calibration• Precision-balanced for smooth, vibration-free performance• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 322 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-103 Porsche 964, 993 Front Ring FAQs
Will these fit OEM Porsche rotor hats? No. The D1-103 rings are designed exclusively for Girodisc aluminum hats and cannot mount to factory one-piece or carbon-ceramic systems.
What pad compounds are recommended? For dual street/track driving, Pagid RS29 or Ferodo DS2500 offer excellent performance. For full racing, Pagid RSL1 or Endless ME20 provide consistent friction and heat control.
Do these rotors improve cooling compared to OEM? Yes. The directional curved vane design channels air through the disc for more efficient cooling, reducing fade during repeated hard stops.
What torque should be used for hardware installation? Torque each bolt to 12 ft-lbs (16 Nm) using blue Loctite, and verify torque after one complete heat cycle for proper float and safety.
Upgrade your air-cooled Porsche’s braking system with Girodisc D1-103 322mm front replacement rings — precision-built for balance, durability, and consistent stopping power on road or track.
GiroDisc Racing Brakes & Technologies
D1-104 Girodisc Honda S2000 Front Replacement Rings
$525.00
D1-104 Girodisc Honda S2000 Front Rings
Restore your Honda S2000’s braking precision with Girodisc D1-104 328mm front replacement rings. These precision-engineered components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each rotor ring is machined from Girodisc’s proprietary high-carbon cast iron, delivering outstanding heat capacity, improved modulation, and fade-free braking for both street driving and track use.
Vehicle Fitment
Compatible with:• Honda S2000 AP1 (2000–2003)• Honda S2000 AP2 (2004–2009)Note: Designed exclusively for Girodisc 328mm two-piece front rotor systems. Not compatible with OEM one-piece rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 328mm two-piece front rotors• CNC-machined from high-carbon cast iron for maximum heat resistance and durability• Directional curved vanes improve cooling and airflow under heavy braking• Maintains OEM brake bias, ABS, and stability calibration• Balanced for smooth, vibration-free braking• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 328 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-104 Honda S2000 Front Ring FAQs
Do these fit OEM Honda S2000 rotors? No. These are replacement rings for Girodisc two-piece systems and will not fit factory one-piece rotors or hats.
What pad compounds work best with these rotors? For daily and spirited driving, Ferodo DS2500 or Hawk HPS 5.0 are ideal. For track events, Pagid RS29 or Project Mu Club Racer pads deliver excellent heat control and bite.
Are these rotors directional? Yes. Each rotor is labeled for left and right installation to ensure proper airflow through the curved vane structure for optimal cooling.
What torque should I use on the floating hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. Recheck torque after the first heat cycle for proper fitment and safety.
Upgrade your Honda S2000’s braking system with Girodisc D1-104 328mm front replacement rings — engineered for lightweight performance, superior cooling, and track-ready durability.
GiroDisc Racing Brakes & Technologies
D1-110 Girodisc Ferrari 430 Scuderia Front Replacement Rings
$1,050.00
D1-110 Girodisc Ferrari Front Rings
Bring race-grade braking back to your Ferrari with Girodisc D1-110 380mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc’s two-piece systems and mount to your existing aluminum hats using the included floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast iron, engineered to handle extreme heat, maintain consistent pedal feel, and deliver fade-free performance through repeated track sessions.
Vehicle Fitment
Compatible with:• Ferrari 430 Scuderia (2008–2009)• Ferrari F430 Challenge (2006–2009)• Ferrari F430 Berlinetta (Iron conversion applications)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM carbon-ceramic (CCM) rotors or factory one-piece discs.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• High-carbon iron alloy provides improved heat capacity and wear resistance• Directional curved vanes optimize airflow and cooling under high-speed braking• Maintains factory brake balance, ABS, and stability control calibration• Precision-balanced for smooth performance and reduced unsprung weight• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-110 Ferrari 430 Scuderia Front Replacement Ring FAQs
Do these rotors replace the OEM Ferrari carbon-ceramic discs? No. The D1-110 rings are designed for Girodisc iron rotor conversion kits and will not mount to factory CCM hardware.
What pad compounds work best with these rotors? For mixed road and track use, Pagid RS29 or Ferodo DS1.11 pads perform exceptionally. For racing, use Pagid RSL1 or Endless ME20 compounds for superior high-temp stability.
Are these rotors directional? Yes. Each rotor is marked for left and right installation. The curved internal vanes must face the correct direction for proper airflow and cooling efficiency.
What torque specification should be used for the hardware? Tighten all bolts to 12 ft-lbs (16 Nm) using blue Loctite. After the first heat cycle, verify hardware torque to ensure proper floating action.
Upgrade your Ferrari’s braking system with Girodisc D1-110 380mm front replacement rings — engineered to deliver endurance, precision, and confidence from the road to the race circuit.
GiroDisc Racing Brakes & Technologies
D1-110 GiroDisc Replacement Rings (Garage Sale)
$787.66
$1,050.00
D1-110 Girodisc Front Replacement Rotor Rings (Discontinued Design)
Discontinued New old stock rotor. These have the straight grooves as images show, not the new curved grooves. Final Sale, no returns or exchanges.
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.
Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
