GiroDisc Racing Brakes & Technologies
A2-186 Girodisc BMW F8X M2, M3, M4 368mm Rear Rotors
$1,927.00
Girodisc BMW F8X M2, M3, M4 Rear Rotors
Unlock the full braking potential of your BMW with Girodisc’s 368mm two-piece rear rotor upgrade for the F8X M2, M3, and M4. These lightweight, high-performance rotors are a direct bolt-on replacement for factory units, delivering sharper response, reduced fade, and better cooling whether on the street or at the track.
Precision Engineering Meets Race-Proven Performance
Each Girodisc rotor is meticulously crafted in the USA using a floating two-piece design. The hat section is CNC-machined from 6061-T6 aircraft-grade aluminum, while the rotor rings are cast from Girodisc’s proprietary high-carbon iron alloy. The curved vane internal design works as a centrifugal pump, pulling air through the rotor to maximize cooling efficiency during repeated high-speed stops.
Features
• Direct replacement for OEM 368mm rear rotors – no modifications needed• Lightweight 6061-T6 billet aluminum hats with anodized finish• Proprietary cast iron rotor rings, cast and machined entirely in the USA• Floating mount system allows controlled expansion for improved durability• Anti-noise spring washers eliminate rattle while maintaining proper float• 48 curved directional vanes for superior cooling and consistent performance• Reduces unsprung and rotational weight for enhanced handling• Sold/priced per pair
Vehicle Fitment
BMW M2 (F87, non-Competition)BMW M3 (F80, all trims)BMW M4 (F82/F83, all trims)Compatible with vehicles using factory 368mm rear iron rotors and blue calipers. Note: M2 Competition and models with carbon-ceramic brakes require a different rotor size.
Girodisc A2-186 Rear Rotor FAQs:
Are these rotors compatible with the M2 Competition? No. The M2 Competition uses a larger 380mm rotor setup. These rotors fit the standard M2 with 368mm rears.
Do I need new pads with these rotors? It’s recommended to install new pads when upgrading rotors to ensure optimal bedding and performance.
Will these affect ABS or traction control? No. Girodisc rotors are manufactured to precise OEM dimensions, ensuring full compatibility with all factory electronic systems.
Are Girodisc rotors rebuildable? Yes. Once installed, you can replace just the iron rings when worn—no need to purchase complete new assemblies.
Enhance your BMW’s braking confidence and precision with Girodisc 368mm rear rotors. Designed for both daily driving and track use, they deliver performance you can feel every time you hit the brakes.
GiroDisc Racing Brakes & Technologies
A2-187 Girodisc Audi 356mm Rear Rotors
$1,784.00
A2-187 Girodisc Audi 356mm Rear Rotors
These Girodisc 2-piece floating rear rotors are a direct replacement for the OEM 356x22mm rear rotors used on Audi C7 S6, S7, RS6, and RS7 models. Designed for serious enthusiasts and track-day drivers, they deliver exceptional braking performance while significantly reducing unsprung and rotational mass.
The Girodisc system maintains the factory brake bias and ABS calibration, making it the ideal performance replacement for stock discs. The 2-piece design allows the rotor rings to expand independently from the aluminum hats, improving heat dissipation and reducing stress-related cracking under repeated high-temperature conditions.
Advanced Construction
Each rotor ring is machined from Girodisc’s proprietary high-carbon iron alloy, developed for exceptional thermal stability, durability, and friction consistency. The 48 curved directional vanes work as internal air pumps to cool the rotor efficiently under load. The hats are CNC-machined from 6061-T6 aircraft-grade aluminum and anodized black for corrosion resistance and lightweight strength.
The fully floating mount system uses precision-machined steel drive pins that transfer braking torque while allowing both axial and radial float. These are secured with cadmium-plated hardware, Belleville washers, and spring clips for quiet operation without the rattle often associated with race-type rotors.
Vehicle Fitment
Audi S6 (C7, 2013–2018)
Audi S7 (C7, 2013–2018)
Audi RS6 (C7, 2013–2018)
Audi RS7 (C7, 2013–2018)
Other Audi models using 356x22mm rear rotors
Technical Specifications
Part Number: A2-187
Position: Rear
Rotor Diameter: 356mm
Rotor Thickness: 22mm
Minimum Thickness: 20mm
Material: High-carbon cast iron rotor, 6061-T6 aluminum hat
Vane Design: 48 curved directional vanes
Drive Pins: Cadmium-plated high-strength steel
Weight: Lightweight 2-piece design reduces unsprung mass
Sold/Price: Per pair
FAQs for Girodisc A2-187
Do these fit both standard and performance package models? Yes, they fit all C7-generation Audi S6, S7, RS6, and RS7 models equipped with 356x22mm rear rotors.
Are they rebuildable? Yes. Replacement rotor rings (part number D2-187) are available for when the iron rings reach minimum thickness or wear limits.
Do they make noise? No. Girodisc designs its floating hardware with spring clips and Belleville washers to eliminate rattling during street use.
Will they change braking balance? No. The Girodisc design maintains factory brake bias and ABS operation while offering improved cooling and reduced weight.
Upgrade your Audi’s braking system with Girodisc’s lightweight 2-piece floating rotors—precision-engineered for performance, rebuildable for longevity, and trusted by professionals and enthusiasts worldwide.
GiroDisc Racing Brakes & Technologies
A2-204 Girodisc Kia Stinger GT, Genesis G70 Rear Rotors
$1,420.00
Kia Stinger GT, Genesis G70 Rear Rotors
Enhance your braking performance with Girodisc’s lightweight, high-performance rear rotors for the Kia Stinger GT and Genesis G70. Designed as a direct replacement for factory rotors, these precision-engineered discs reduce unsprung weight, improve cooling, and deliver exceptional pedal feel under both street and track conditions.
Performance and Precision in Every Stop
The Girodisc system bolts directly to the OEM calipers with no modifications required, maintaining proper brake bias and ABS operation. Each rotor features a U.S.-sourced 6061-T6 aluminum hat paired with Girodisc’s proprietary cast iron rotor ring. The curved vane internal design, developed through racing, acts as a centrifugal pump to pull air through the rotor, dramatically improving heat dissipation and fade resistance.
Features
• Direct replacement for OEM rear rotors – no modifications required• Billet 6061-T6 aluminum hats with durable anodized finish• Proprietary high-carbon cast iron rotor rings made and machined in the USA• Floating mount system with cadmium-plated steel drive pins• Anti-noise spring washers eliminate rattle while maintaining thermal float• 48 curved directional vanes maximize airflow for superior cooling• Lightweight two-piece design reduces unsprung and rotational mass• Sold/priced per pair
Vehicle Fitment
Kia Stinger GT (2018–present)Genesis G70 (2019–present, including 3.3T and 2.0T models with Brembo brakes)Compatible with OEM calipers and factory rotor dimensions.
Girodisc A2-204 Rear Rotor FAQs:
Do these Girodisc rotors fit both 2.0T and 3.3T models? Yes, as long as the car is equipped with the factory Brembo brake package, these rotors fit both engines and trim levels.
Are these rotors lighter than stock? Yes. The two-piece aluminum hat and iron ring design saves several pounds per rotor, reducing unsprung mass for sharper handling.
Can these be used with OEM brake pads? Absolutely. Girodisc rotors are fully compatible with OEM or aftermarket performance pads designed for iron rotors.
Are they suitable for daily driving? Yes. While designed for high-performance use, Girodisc rotors deliver quiet, smooth operation ideal for everyday driving.
Upgrade your Kia Stinger GT or Genesis G70 with Girodisc rear rotors and experience improved response, reduced fade, and race-proven braking confidence every time you hit the pedal.
GiroDisc Racing Brakes & Technologies
A2-205 Girodisc Lamborghini Huracan (Centerlock) Rear Iron Rotor Conversion
$2,141.00
Girodisc Lamborghini Huracan (Centerlock) Rear Iron Rotor Conversion
Upgrade your Huracan’s braking system with Girodisc’s precision-engineered rear iron rotor conversion. Designed as a direct replacement for the factory carbon-ceramic rotors, this system offers exceptional braking performance, improved serviceability, and significant cost savings without compromising quality or OEM fitment.
High-Performance Iron Rotor Conversion
The Girodisc A2-205 system bolts directly to the factory centerlock hub and works flawlessly with OEM calipers and ABS systems. Each two-piece rotor is built using a U.S.-sourced 6061-T6 aluminum hat paired with Girodisc’s proprietary cast iron friction ring. The curved vane internal design acts like a centrifugal pump, pulling air through the rotor to enhance cooling efficiency and reduce fade during aggressive driving or track use.
Features
• Direct replacement for OEM carbon-ceramic rear rotors• Works with factory centerlock hubs and OEM calipers• U.S.-made 6061-T6 aluminum hats with durable anodized finish• Proprietary high-carbon cast iron friction rings for improved heat control• Floating mount system with cadmium-plated steel drive pins• Anti-noise spring washers eliminate rattling while maintaining float• Fully rebuildable – replace only the iron rings when worn• Sold and priced in pairs
Girodisc A2-205 Vehicle Fitment
Lamborghini Huracan (All centerlock models, 2015–present)Huracan LP610-4, LP580-2, Performante, EVO, STOCompatible with OEM carbon-ceramic brake systems.
Girodisc A2-205 Rear Rotor FAQs:
Can this rotor conversion replace the factory carbon-ceramic brakes? Yes, it’s a direct bolt-on replacement for OEM carbon-ceramic rotors, retaining the factory centerlock and caliper setup.
Do these rotors affect ABS or traction control systems? No. Girodisc rotors are engineered to maintain the exact factory dimensions, ensuring full compatibility with all electronic systems.
What benefits do iron rotors offer over carbon-ceramic? Iron rotors deliver more consistent pedal feedback, improved cold bite, and easier maintenance at a fraction of the replacement cost.
Are Girodisc rotors suitable for both street and track use? Absolutely. T
GiroDisc Racing Brakes & Technologies
A2-206 Girodisc 2pc Brake Rotors | McLaren 600LT & 720S (Rear)
$2,847.00
Girodisc McLaren 390mm Rear Rotors
These Girodisc 2-piece front rotors are a direct replacement for McLaren applications equipped with 390 mm front brakes. They reduce unsprung weight and improve cooling for repeatable performance on street and track.
A1-206 Vehicle Fitment
McLaren 600LT
McLaren 720S
Lightweight, High-Performance Rotor Assemblies
The rotor rings are machined from proprietary high-carbon iron to Girodisc specifications for durability and thermal stability. The 48 curved vanes act as a centrifugal pump, pulling air through the hub for excellent cooling under heavy braking. The serviceable two-piece design allows the aluminum hats to be reused with front replacement rings (D1-206).
A1-206 Features
Direct OEM replacement, no modifications required
2-piece floating rotor assemblies reduce unsprung weight
High-carbon iron rings for consistent braking performance
48 curved vanes for efficient cooling
Reusable 6061-T6 aluminum hats with black anodized finish
Manufactured and assembled in Bellingham, WA
Girodisc McLaren 390mm Front Rotors FAQs:
Are these rotors a direct fit? Yes, they bolt on with factory calipers and hardware for 390 mm front brake applications.
Do they work with OEM pads? Yes, and they are compatible with performance pad compounds.
Can I reuse the hats when the rings wear out? Yes, use D1-206 front replacement rings.
Are these suitable for track days? Yes, they are designed for repeated heat cycles with strong cooling.
Related Products
A1-206 Girodisc McLaren 390mm Front Rotors
D2-206 Girodisc McLaren 390mm Rear Replacement Rings
D1-206 Girodisc McLaren 390mm Front Replacement Rings
GiroDisc Racing Brakes & Technologies
A2-207 Girodisc Mercedes 358mm Rear Iron Rotor Conversion
$2,569.00
Mercedes Rear Iron Rotor Conversion
Replace your factory carbon-ceramic or cast-iron rear rotors with Girodisc’s precision-engineered 358mm rear iron rotor conversion. Designed to bolt directly onto your Mercedes without modifications, this upgrade delivers improved performance, lower service costs, and superior heat control for both spirited street and track driving.
Direct Replacement for Factory Rotors
The Girodisc system is a true bolt-on solution, maintaining full compatibility with OEM calipers, ABS, and stability systems. Each rotor’s central hat is machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, paired with Girodisc’s proprietary cast iron rotor ring. This two-piece floating design allows for thermal expansion under extreme conditions, preventing distortion while ensuring consistent braking feel and modulation.
Girodisc A2-207 Features
• Direct replacement for OEM 358mm rear rotors – no modifications required• Lightweight 6061-T6 billet aluminum hats with anodized finish• Proprietary high-carbon cast iron rotor rings, cast and machined in the USA• Floating mount system with 10 cadmium-plated steel drive pins• Anti-noise spring washers prevent rattle while allowing thermal movement• Curved internal vanes improve airflow and heat dissipation• Fully rebuildable – replace only the iron rings when needed
Vehicle Fitment
Mercedes-Benz C63 AMG (W205) – 2015–2021Mercedes-Benz C63 S AMG (W205) – 2015–2021Compatible with vehicles originally equipped with 358mm rear rotors or carbon-ceramic systems.
Girodisc A2-207 Rear Rotor FAQs:
Is this rotor conversion compatible with factory carbon-ceramic brakes? Yes, the A2-207 kit replaces OEM carbon-ceramic or iron rear rotors using the original calipers and hardware.
Do these rotors reduce weight compared to factory units? Yes. The two-piece Girodisc design saves several pounds per corner, improving unsprung weight and braking response.
Are Girodisc rotors suitable for daily driving? Absolutely. They provide smooth, quiet braking on the street with performance margins that shine on track days.
Can I just replace the iron rings in the future? Yes. Girodisc rotors are fully rebuildable—when the friction rings wear out, you can replace them without buying new hats.
Upgrade your Mercedes AMG with Girodisc’s 358mm rear iron rotor conversion and experience the perfect balance of stopping power, consistency, and serviceability.
GiroDisc Racing Brakes & Technologies
A2-209 Girodisc Alfa Romeo Giulia, Stelvio Quadrifoglio Rear Iron Rotor Conversion
$2,141.00
Girodisc Alfa Romeo Giulia, Stelvio Quadrifoglio Rear Iron Rotor Conversion
Transform the braking performance of your Giulia or Stelvio Quadrifoglio with Girodisc’s lightweight two-piece rear iron rotor conversion. Designed to replace the factory carbon-ceramic system, this setup maintains OEM fitment while offering better serviceability and cost efficiency—perfect for high-performance street and track driving.
Direct Bolt-On Iron Rotor Replacement
The Girodisc system is a direct replacement for the original carbon-ceramic rear rotors, requiring no modifications or special adapters. The central hat is precision-machined from U.S.-sourced 6061-T6 aluminum, while the iron rotor rings are Girodisc’s proprietary cast iron, poured and machined entirely in the USA. The curved vane internal design actively pumps cooling air through the disc, reducing fade and improving heat dissipation under heavy use.
Features
• Direct replacement for OEM carbon-ceramic rear rotors• Made from high-carbon cast iron for excellent thermal management• Lightweight billet 6061-T6 aluminum hats with anodized finish• Floating mount system allows for thermal expansion without warping• 10 cadmium-plated alloy steel drive pins secure the hat and ring• Anti-noise spring washers reduce rattle while maintaining float• Fully rebuildable design—replace only the iron rings when needed• Sold and priced in pairs
Vehicle Fitment
Alfa Romeo Giulia Quadrifoglio (2017–present)Alfa Romeo Stelvio Quadrifoglio (2018–present)Compatible with factory carbon-ceramic brake systems.
Girodisc A2-209 Rear Rotor FAQs:
Can these Girodisc rotors replace the factory carbon-ceramic setup? Yes, they’re specifically designed as a direct bolt-on conversion from the OEM carbon-ceramic rotors to a more serviceable iron setup.
Do they work with the stock calipers and pads? Absolutely. The Girodisc system retains the OEM Brembo calipers and uses standard pad shapes for easy compatibility.
Are there performance benefits besides cost savings? The iron rotors offer superior heat absorption and more consistent braking feedback, especially beneficial for track or spirited street driving.
Will switching to iron rotors affect ABS or stability systems? No, Girodisc’s engineering ensures full compatibility with all factory electronic systems, maintaining perfect brake bias and function.
Upgrade your Alfa Romeo’s stopping power and serviceability with Girodisc’s rear iron rotor conversion. Experience the confidence of precise, fade-free braking on every drive.
GiroDisc Racing Brakes & Technologies
A2-211 Girodisc Chevrolet Camaro SS, ZL1 Rear Rotors
$1,641.00
Girodisc Chevrolet Camaro SS, ZL1 Rear Rotors
Upgrade your Camaro’s stopping power with Girodisc’s lightweight two-piece rear rotors. Designed as a direct replacement for factory units, these precision-engineered rotors reduce unsprung weight while improving braking consistency and cooling performance for both street and track use.
Lightweight, Track-Proven Performance
Each Girodisc rotor is crafted from proprietary cast iron with a billet 6061-T6 aluminum hat, machined and assembled in the USA. The floating two-piece design allows the rotor to expand under heat without warping or distortion, maintaining consistent pad contact and pedal feel. The result is better modulation, reduced fade, and faster recovery lap after lap.
Features
• Direct replacement for factory rear rotors – no modifications required• Aircraft-grade 6061-T6 aluminum hats with durable anodized finish• Proprietary high-carbon cast iron discs made and machined in the USA• Floating mount system using cadmium-plated alloy steel drive pins• Curved directional vanes promote superior air flow and heat dissipation• Lighter than OEM rotors, improving suspension response and acceleration• Fully serviceable design – only replace iron rings when worn
Vehicle Fitment
Chevrolet Camaro SS (2016–present)Chevrolet Camaro ZL1 (2017–present)Fits models equipped with factory Brembo rear calipers.
Girodisc A2-211 Rear Rotor FAQs:
Do these Girodisc rotors fit both manual and automatic Camaro SS models? Yes, they fit all 2016+ Camaro SS and ZL1 models equipped with the factory Brembo brake system, regardless of transmission.
Will I need to upgrade my brake pads when installing these? It’s highly recommended to use a fresh set of pads compatible with iron rotors to ensure proper bedding and optimal braking performance.
How much lighter are Girodisc rotors compared to OEM units? Each rotor typically weighs 3–5 lbs less than the OEM cast iron equivalent, significantly reducing unsprung and rotational mass.
Are Girodisc rotors suitable for daily driving? Absolutely. Girodisc rotors deliver exceptional street manners while being durable enough for heavy track use.
Enhance your Camaro’s braking performance and shed unnecessary weight with Girodisc’s precision-engineered rear rotors. Order today and experience smoother, stronger stops on every drive.
GiroDisc Racing Brakes & Technologies
A2-217 Girodisc 2-Piece Rear Brake Rotors – Hyundai Veloster / Elantra / Kona / i30 N,
$1,420.00
Girodisc Rear Brake Rotors – Hyundai Veloster / Elantra / Kona / i30 N
The Girodisc A2-217 Rear Rotor Kit offers a direct bolt-on performance upgrade for Hyundai’s high-performance N models, including the Veloster N, Elantra N, Kona N, and i30 N. These lightweight two-piece rotors are designed to deliver exceptional cooling, reduced unsprung weight, and race-level consistency without compromising everyday drivability or OEM compatibility.
Precision Engineering for Hyundai’s N Performance Line
Each Girodisc A2-217 rotor combines a CNC-machined 6061-T6 aluminum hat with a proprietary cast-iron friction ring. The two-piece floating design allows the rotor to expand and contract freely under heat, maintaining perfect alignment and preventing cracking or warping. The curved-vane internal geometry acts as a centrifugal air pump, drawing cooling air through the rotor for maximum temperature control under demanding conditions.
Features
• Direct-fit upgrade for Hyundai Veloster N, Elantra N, Kona N, and i30 N• Two-piece floating rotor design: cast-iron ring + 6061-T6 aluminum hat• Curved-vane internal design improves airflow and cooling efficiency• Floating mount system with cadmium-plated drive pins and anti-noise spring washers• Lightweight aluminum hat reduces unsprung and rotational mass• Retains OEM brake bias and ABS calibration• Reusable hats—replace only the iron rings when worn• Sold/priced per pair
Vehicle Fitment
• Hyundai Veloster N – Rear• Hyundai Elantra N – Rear• Hyundai Kona N – Rear• Hyundai i30 N – Rear• Compatible with OEM calipers and hardware• Direct bolt-on installation; no modifications required
Girodisc A2-217 Rear Rotors – Hyundai Veloster / Elantra / Kona / i30 N FAQs
Do these rotors fit stock calipers? Yes. The Girodisc A2-217 rear rotors bolt directly to OEM calipers, maintaining factory brake bias and ABS performance.
What benefits do two-piece rotors provide? The two-piece floating design improves cooling, reduces weight, and allows for thermal expansion without warping, ensuring consistent braking under repeated heavy use.
Will these make noise? No. The anti-noise spring washers prevent rattling when cold while allowing full float during high-temperature operation.
Are replacement rings available? Yes. Girodisc offers replacement cast-iron rings so you can reuse your aluminum hats, lowering maintenance costs.
How do these compare to OEM rotors? Girodisc rotors are lighter, stronger, and run cooler than OEM units, offering smoother pedal feel and superior fade resistance.
Are these sold as a pair? Yes. The Girodisc A2-217 rotors are sold and priced as a matched rear pair.
Enhance your N-car braking performance with the Girodisc A2-217 2-Piece Rear Brake Rotors—engineered for the Hyundai Veloster, Elantra, Kona, and i30 N to deliver race-level durability and street-ready refinement.
GiroDisc Racing Brakes & Technologies
A2-220 Girodisc 2pc Rear Brake Rotors - BMW F8X M2 / M3 / M4
$1,927.00
Girodisc Rear Brake Rotors – BMW F8X M2 / M3 / M4
The Girodisc A2-220 Rear Rotor Kit is a direct replacement for factory carbon ceramic or iron rotors on the BMW F8X platform, including the M2, M3, and M4. Designed for drivers who demand superior thermal control and serviceability, these 380mm two-piece rotors deliver exceptional braking consistency, reduced weight, and race-proven reliability—without any modifications required.
Convert Carbon Ceramic to Iron with OEM Precision
For vehicles originally equipped with BMW’s carbon ceramic rotors, this Girodisc kit offers a straightforward conversion to high-performance iron rotors. The system bolts directly to the car using the factory calipers and hardware, maintaining OEM brake bias and ABS calibration. Girodisc’s curved-vane design and floating mount system ensure cooler operation, quieter performance, and reduced maintenance costs compared to carbon ceramics.
Features
• Direct replacement for 380mm BMW F8X M2 / M3 / M4 rear rotors• Converts carbon ceramic brakes to iron rotors with no modifications• Two-piece floating design: 6061-T6 aluminum hat + proprietary cast-iron ring• Curved-vane geometry for superior heat dissipation• Floating mount system with cadmium-plated drive pins and anti-noise spring washers• Class 12.9 hardware for high torque load capacity• Reusable aluminum hats – replace iron rings when worn• Reduced unsprung and rotational mass for improved handling• Sold/priced per pair
Vehicle Fitment
• BMW F80 M3 / F82–F83 M4 (including CS with optional carbon ceramic package – gold calipers)• BMW F87 M2 / M2 Competition (red or silver calipers)• BMW F87 M2 CS (optional carbon ceramic package – gold calipers)• Note: Vehicles with blue calipers require a different rotor size, available separately.
Girodisc A2-220 Rear Rotors – BMW F8X M2 / M3 / M4 FAQs
Do these rotors fit OEM calipers? Yes. The A2-220 rotors bolt directly to factory calipers and hubs with no modifications needed.
Can I use these to replace carbon ceramic rotors? Absolutely. This kit is designed to replace OEM carbon ceramics with Girodisc’s high-performance iron rotors. It’s a simple bolt-on conversion that reduces cost and improves heat capacity.
Do I need to change brake pads? Yes. When converting from carbon ceramic to iron rotors, use pads specifically designed for iron discs to ensure proper friction and performance.
What are the benefits of a two-piece floating design? The floating mount system allows for thermal expansion without warping or cracking, maintaining smooth, consistent braking and extending rotor life.
Are replacement rings available? Yes. Girodisc offers replacement cast-iron rings that allow you to reuse your aluminum hats and hardware, reducing long-term cost.
Are these rotors noisy? No. Anti-noise spring washers prevent rattling when cold while allowing proper float when hot.
Upgrade your braking performance and reduce long-term maintenance costs with the Girodisc A2-220 2-Piece Rear Brake Rotors (380mm)—precision-engineered for BMW’s F8X M2, M3, and M4 platforms.
GiroDisc Racing Brakes & Technologies
A2-221 Girodisc Rear Brake Rotors – Ferrari F40
$2,284.00
Girodisc Rear Brake Rotors – Ferrari F40
The Girodisc A2-221 Rear Rotor Kit is a precision-engineered, direct replacement for the factory rear rotors on the legendary Ferrari F40. Designed to deliver superior heat management, reduced unsprung mass, and uncompromised performance, these lightweight two-piece rotors bring modern racing technology to one of the most iconic supercars ever built.
Modern Engineering for a Legendary Supercar
Each Girodisc A2-221 rotor combines a CNC-machined 6061-T6 aluminum hat with Girodisc’s proprietary cast-iron friction ring. The floating two-piece design allows the iron ring to expand under heat without warping or coning, maintaining consistent pedal feel and reducing stress on the braking system. The curved-vane internal geometry acts as a centrifugal air pump, improving airflow through the rotor for cooler, more stable braking under extreme conditions.
Features
• Direct replacement for OEM Ferrari F40 rear rotors• Two-piece floating design: cast-iron friction ring + 6061-T6 aluminum hat• Curved-vane internal construction for enhanced cooling efficiency• Floating mount system with cadmium-plated drive pins and anti-noise spring washers• Class 12.9 cap screws and hardened washers for strength and reliability• Reusable aluminum hats – replace only the iron rings when needed• Reduces unsprung weight and improves handling response• Sold/priced per pair
Vehicle Fitment
• Ferrari F40 (1987–1992) – Rear• Direct OEM replacement, compatible with factory calipers and ABS• No modifications required for installation
Girodisc A2-221 Rear Rotors – Ferrari F40 FAQs
Do these rotors fit directly without modification? Yes. The Girodisc A2-221 rotors bolt directly to the factory calipers and hubs without requiring any changes to your OEM components.
What makes these rotors better than stock? The two-piece floating design reduces weight, improves cooling, and prevents distortion under high temperatures for more consistent braking and longer life.
Are replacement rings available? Yes. Girodisc offers replacement cast-iron rings so you can reuse your existing aluminum hats and hardware, reducing long-term maintenance costs.
Do these rotors make noise? No. Anti-noise spring washers are used to eliminate rattling at low speeds while maintaining full float during heat expansion.
Are they sold individually or as a set? The Girodisc A2-221 rear rotors are sold as a matched pair for the rear axle.
Will they affect braking balance or ABS? No. These rotors maintain the factory bias and ABS function while offering improved performance and reliability.
Upgrade your Ferrari F40 with the Girodisc A2-221 2-Piece Rear Brake Rotors—modern performance engineering built to complement the timeless design and racing pedigree of Maranello’s most celebrated icon.
GiroDisc Racing Brakes & Technologies
A2-224 Girodisc 2-Piece Rear Brake Rotors – Alfa Romeo Quadrifoglio / Maserati
$1,927.00
Girodisc Rear Brake Rotors – Alfa Romeo Quadrifoglio / Maserati
The Girodisc A2-224 Rear Rotor Kit is a high-performance, direct replacement for factory rear rotors on Alfa Romeo Quadrifoglio and select Maserati models. Built to withstand extreme heat and aggressive driving, these lightweight two-piece rotors improve cooling efficiency and responsiveness while maintaining OEM brake balance and ABS function.
Lightweight Performance Meets Italian Engineering
Each rotor is crafted using Girodisc’s precision two-piece floating design—featuring a CNC-machined 6061-T6 aluminum hat paired with a proprietary cast-iron friction ring. The curved vane internal geometry acts as a centrifugal air pump, forcing cool air through the disc to reduce heat, fade, and warping during track or spirited driving. The result: consistent, confidence-inspiring braking performance without compromising everyday drivability.
Features
• Direct-fit replacement for Alfa Romeo Quadrifoglio and select Maserati rear rotors• Two-piece floating rotor design: cast-iron ring + 6061-T6 aluminum hat• Curved-vane internal structure for superior heat dissipation• Floating mount with cadmium-plated steel drive pins and anti-noise spring washers• Class 12.9 fasteners with hardened washers for maximum strength• Reusable aluminum hats – only replace iron rings when worn• Reduces unsprung weight for better handling and suspension response• Sold/priced per pair
Vehicle Fitment
• Alfa Romeo Giulia Quadrifoglio – Rear• Alfa Romeo Stelvio Quadrifoglio – Rear• Maserati Ghibli / Levante / Quattroporte (select trims) – Rear• Compatible with OEM calipers and ABS• Direct bolt-on installation with no modifications
Girodisc A2-224 Rear Rotors – Alfa Romeo Quadrifoglio / Maserati FAQs
Do these rotors fit the stock calipers? Yes. The Girodisc A2-224 rear rotors bolt directly to the OEM calipers without modification, maintaining proper brake bias and system balance.
What benefits do two-piece rotors offer? They significantly reduce unsprung weight, improve cooling, and allow the rotor to expand under heat without warping or coning, resulting in consistent braking and longer life.
Can I reuse the hats? Yes. When the iron rings wear out, simply replace the rings while reusing the aluminum hats and hardware for a cost-effective rebuild.
Are replacement rings available? Absolutely. Girodisc offers replacement iron rings that fit perfectly onto your existing aluminum hats.
Do these rotors make noise? No. The anti-noise spring washers eliminate rattles when cold while preserving full float during heat cycles.
Are these rotors lighter than OEM? Yes. The aluminum hat reduces rotational mass and unsprung weight, improving responsiveness and handling.
Experience superior braking performance with the Girodisc A2-224 2-Piece Rear Brake Rotors—precision-engineered for Alfa Romeo and Maserati enthusiasts who demand the perfect balance of comfort, control, and performance.
GiroDisc Racing Brakes & Technologies
A2-232 Girodisc 2-Piece Rear Brake Rotors – Nissan GT-R
$2,070.00
Girodisc Rear Brake Rotors – Nissan GT-R
The Girodisc A2-232 Rear Rotor Kit is a direct replacement for the OEM rear rotors on the Nissan GT-R. Designed to deliver race-proven performance with factory fitment, these lightweight two-piece rotors enhance cooling efficiency, reduce unsprung weight, and maintain perfect compatibility with stock calipers and ABS.
Lightweight Performance. Race-Ready Engineering.
Each Girodisc rotor combines a precision-machined 6061-T6 aluminum hat with a proprietary cast-iron ring, both sourced and built in the USA. The curved vane internal geometry acts as a centrifugal air pump, forcing cooling air through the disc to reduce temperatures and prevent fade under aggressive driving. The floating mount system allows the rotor ring to expand naturally under heat without warping or coning, maintaining consistent pedal feel and braking balance.
Features
• Direct replacement for OEM Nissan GT-R rear rotors• Two-piece floating design: cast-iron rotor ring + 6061-T6 aluminum hat• Curved-vane internal cooling for heat management• Floating mount system with cadmium-plated drive pins and class 12.9 hardware• Anti-noise spring washers eliminate rattle when cold• Reduces unsprung and rotational mass• Maintains factory ABS and brake bias• Reusable hats – replace rings when worn• Sold/priced per pair
Vehicle Fitment
• Nissan GT-R (All R35 models) – Rear• Direct OEM bolt-on replacement• Works with factory calipers and ABS
Girodisc A2-232 Rear Rotors – Nissan GT-R FAQs
Do these rotors fit the stock calipers? Yes. The A2-232 rotors bolt directly to OEM calipers and retain factory brake balance and ABS performance.
What’s the benefit of a floating two-piece design? The floating mount allows for thermal expansion and self-centering, improving braking consistency and minimizing stress that leads to rotor cracking or distortion.
Are replacement rings available? Yes. Girodisc offers replacement rings that allow you to reuse the aluminum hats and hardware for cost-effective long-term maintenance.
Do these rotors make noise? No. Anti-noise spring washers eliminate rattle when cold while preserving the benefits of a true floating design under heat.
Are these rotors lighter than OEM? Yes. The aluminum hat significantly reduces unsprung and rotational mass, improving acceleration, handling, and ride quality.
Are they sold individually or as a set? The Girodisc A2-232 rotors are sold as a pair for the rear axle.
Upgrade your Nissan GT-R with the Girodisc A2-232 2-Piece Rear Brake Rotors—built for drivers who demand precision, performance, and reliability on both street and track.
GiroDisc Racing Brakes & Technologies
A2-238 Girodisc 2pc Rear Brake Rotors (991 GT3 Cup Car)
$2,498.00
Girodisc Rear Brake Rotors – Porsche 991
The Girodisc A2-238 Rear Rotor Set (380x30mm) is a direct replacement for the OE cup car discs used on the Porsche 991 GT3 Cup. Engineered for performance and reliability under extreme track conditions, these rotors bolt directly to your car and work seamlessly with the original calipers and ABS system—no modifications required.
Race-Proven Two-Piece Design
Each Girodisc rotor is designed and manufactured in the USA with precision components to ensure durability and superior thermal management. The central hat section is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the outer ring is made from Girodisc’s proprietary cast iron alloy, poured and machined entirely in-house. The curved vane design actively pumps cooling air through the disc, reducing temperatures during intense braking to prevent fade and warping.
Features
• Direct replacement for OEM Porsche 991 GT3 Cup rear discs (380x30mm)• Two-piece floating rotor design for optimal heat management• 6061-T6 aluminum hats machined from U.S.-sourced billet• Proprietary cast iron rotor rings with curved vane cooling geometry• 12 high-strength alloy steel drive pins with cadmium plating• Anti-noise spring washers eliminate rattle while maintaining full float• Class 12.9 hardware and hardened washers for secure mounting• Significantly reduces unsprung and rotational mass• Reusable hats—replace only rings when worn• Sold/priced per pair• Optional center-lock drive pin kit available
Vehicle Fitment
• Porsche 991 GT3 Cup (All model years) – Rear• Fits OEM calipers and ABS• Center-lock wheel option available upon request
Girodisc A2-238 Rear Rotors – Porsche 991 GT3 Cup FAQs
Do these rotors fit directly without modifications? Yes. The Girodisc A2-238 system is a direct bolt-on replacement for OEM rear discs on the 991 GT3 Cup.
What is the advantage of a two-piece floating rotor? The floating design allows the iron rotor ring to expand under heat without stressing the aluminum hat, improving performance, reducing weight, and preventing cracking or distortion.
Can I reuse the aluminum hats? Yes. Once the cast iron rings wear out, you can replace just the rings and retain the existing hats and hardware.
Do these rotors make noise? No. The use of anti-noise spring washers ensures quiet operation even when cold, while maintaining true floating capability under heat.
Are these rotors sold individually? No. The Girodisc A2-238 rotors are sold as a pair for the rear axle.
Is a center-lock version available? Yes. Girodisc offers a specific drive pin option for vehicles equipped with OEM center-lock hubs—select this option when ordering.
Enhance your Porsche 991 GT3 Cup’s braking performance with the Girodisc A2-238 2-Piece Rear Brake Rotors (380x30mm)—precision-engineered, race-proven, and built to handle the most demanding conditions on track.
GiroDisc Racing Brakes & Technologies
A2-239 Girodisc 2pc Rear Brake Rotors (ZL1 Gen 5)
$1,570.00
Competition Motorsport is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most Girodisc products the same or next business day to ensure we meet your delivery deadline.
Fits Chevrolet Camaro ZL1 Gen 5
The Girodisc system is a direct replacement for the OE disc, they 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 well as your ABS efficiency.
The central hat section of the Girodisc rotor is made from strictly USA-sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved-vane design, developed in racing to act as a centrifugal pump forcing cool air through the disc.
The disc and hat have a floating mount system, which utilizes 12 high-strength alloy steel drive pins, manufactured in the US by Girodisc and cadmium plated for long-lasting corrosion resistance. These pins take the loads from braking while maintaining the axial and radial float between the hat and disc. They are secured by class 12.9 cap screws and hardened washers.
In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise springs on the disc side, allowing the iron disc to expand as it heats up while eliminating the rattle and noise commonly associated with floating rotors. This float also allows the rotor to self center between the brake pads.
Once the Girodisc system is in place, you simply replace the cast iron discs when needed. This reduces cost over time by allowing you to re-use the aluminum central hats.
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A2-240 Girodisc Rear Iron Rotor Conversion – Mercedes E63 / CLS63 / SLS
$2,070.00
Girodisc Rear Iron Rotor Conversion – Mercedes E63 / CLS63 / SLS
The Girodisc A2-240 Rear Iron Rotor Conversion Kit converts your factory steel rear rotors to a high-performance two-piece floating iron rotor system for Mercedes E63, CLS63, and SLS models. It allows you to upgrade your brake system without replacing OEM hub components—delivering improved thermal management, reduced weight, and far better consistency under track or aggressive use.
Upgrade from Steel to Performance Iron
Mercedes E63, CLS63, and SLS vehicles often come with large, heavy steel rear rotors. The Girodisc A2-240 conversion lets you retain the stock hub assembly but convert to lightweight, high-quality cast-iron friction rings mounted on a 6061-T6 aluminum hat. This floating rotor system improves cooling, allows thermal expansion, and reduces unsprung and rotational mass while maintaining OEM caliper compatibility.
Features
• Conversion kit for Mercedes E63, CLS63, and SLS rear rotors• Converts factory rotor hubs to floating two-piece design• Machined 6061-T6 aluminum hat compatible with OEM hub• Proprietary cast-iron friction rings poured and machined in-house• Floating mount system with alloy steel drive pins and anti-noise spring washers• Cadmium-plated hardware and class 12.9 fasteners included• Reduces weight, improves cooling, and enhances brake response• Rings are replaceable—reuse hats and hardware in future• Sold as a complete kit
Vehicle Fitment
• Mercedes C-class E63 AMG – Rear• Mercedes CLS63 AMG – Rear• Mercedes SLS AMG – Rear• Designed to mate with existing hubs and calipers without modification
Girodisc A2-240 Rear Iron Rotor Conversion FAQs
Will I need new hubs or calipers? No. The A2-240 kit is designed to adapt to OEM hubs and calipers for a seamless conversion.
What advantages does the floating two-piece design offer over stock steel rotors? The floating design allows thermal growth, improves cooling under load, and reduces unsprung and rotational mass, all contributing to better pedal feel and reduced fade.
Are the ring components replaceable? Yes. When the iron rings wear out, you can replace them while reusing the aluminum hats and hardware to lower long-term costs.
Is this kit sold per axle? Yes. The A2-240 conversion comes as a complete rear rotor kit for both sides of the axle.
Will this affect my ABS or brake balance? No. This is a conversion that maintains the original geometry and balance while providing enhanced performance characteristics.
Convert your Mercedes E63, CLS63, or SLS rear braking setup to next-level performance with the Girodisc A2-240 Rear Iron Rotor Conversion. Enjoy reduced weight, improved thermal control, and enhanced braking confidence under load.
