Racing Brake Rotors

Porsche GT2 RS Clubsport Front Rotors The Girodisc system is a direct replacement for the OE front rotors on the Porsche GT2 RS Clubsport. Designed and engineered for the most demanding track environments, these lightweight 2-piece floating rotors bolt directly to the car with no modifications required. They maintain OEM brake bias and ABS functionality while delivering superior cooling, reduced fade, and exceptional braking precision under extreme racing conditions. Motorsport-Grade Design, Precision-Built in the USA Each Girodisc rotor assembly is meticulously engineered and manufactured in-house using premium materials. The hat is CNC-machined from 6061-T6 aircraft-grade aluminum for strength and reduced weight, while the rotor rings are made from Girodisc’s proprietary high-carbon iron alloy. The 380mm diameter and 32mm thickness provide greater thermal capacity, ensuring consistent performance through repeated high-speed braking events. The floating mount system allows for controlled expansion under heat, eliminating warping and vibration. Vehicle Fitment Porsche 911 GT2 RS Clubsport (991.2) Porsche 935 (991-based, 2019–2021) Features Direct OEM Replacement: Installs directly to factory hubs and calipers with no modifications required. High Thermal Capacity: Large 380x32mm rotor design for superior heat management and fade resistance. Lightweight Two-Piece Construction: Reduces unsprung and rotational mass for sharper handling and acceleration. Curved Vane Cooling: Internal directional vanes pump air through the rotor to maintain consistent braking temperatures. Floating Mount System: Twelve high-strength drive pins secured with anti-noise spring washers allow the rotor to expand under heat while preventing rattle. Made in the USA: Fully machined and assembled from U.S.-sourced materials to meet professional racing standards. FAQs – Porsche GT2 RS Clubsport Front Rotors Are these rotors compatible with OEM calipers? Yes, they bolt directly to the factory Porsche calipers with no modifications required. Can they be used on the street? While designed for track use, they function flawlessly for limited street driving as well. Do they improve performance over OEM rotors? Yes—these rotors offer better cooling, reduced fade, and lighter rotational weight for more consistent lap times. Are they sold as a pair? Yes, all Girodisc rotors are sold and priced per pair. Upgrade your Porsche GT2 RS Clubsport with Girodisc’s 2-piece floating front rotors. Experience unmatched braking consistency, reduced fade, and the durability demanded by world-class motorsport performance.

A2-260 Girodisc Mercedes G63 Rear Rotors The Girodisc A2-260 Rear Rotors are precision-engineered to replace the heavy factory discs on the Mercedes-Benz G63 AMG. Designed as a direct bolt-on upgrade with no modifications required, these 2-piece floating rotors provide exceptional braking performance while shedding significant unsprung and rotational weight. The result is sharper acceleration, improved suspension response, and reduced heat buildup during aggressive driving. Lightweight, High-Performance Construction Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary cast iron outer ring, manufactured in the USA. This combination reduces each rotor’s weight by approximately 8.1 pounds compared to stock (16.6 lbs vs. 24.7 lbs), dramatically improving responsiveness without compromising braking efficiency. The high-carbon iron construction ensures optimal thermal stability and consistent performance under repeated heavy braking. Advanced Cooling and Floating Design The rotors incorporate a curved vane design developed from motorsport applications, functioning like a centrifugal pump to force cooling air through the disc. Girodisc’s floating mount system uses 10 cadmium-plated steel drive pins secured with class 12.9 cap screws and hardened washers. This design allows the disc to expand radially under high temperatures without distortion while anti-noise spring washers ensure quiet street operation. Vehicle Fitment Mercedes-Benz G63 AMG (all variants with factory iron rotors) Direct bolt-on replacement for OEM rear rotors No modifications or additional hardware required Technical Specifications CMS Number: A2-260 Position: Rear Design: 2-piece floating rotor assembly Material: Proprietary cast iron ring with 6061-T6 aluminum hat Vane Design: Curved internal vanes for improved cooling Weight Savings: ~8.1 lbs per rotor Hardware: Cadmium-plated steel drive pins with anti-noise washers Rebuildable: Yes — reusable hat with replacement rings Sold/Price: Per pair FAQs for Girodisc A2-260 Do these rotors fit without modification? Yes, the Girodisc A2-260 rear rotors bolt directly to the G63 AMG hub and work perfectly with factory calipers. What benefits do these provide over OEM rotors? They reduce unsprung mass, enhance cooling, and maintain brake balance and ABS efficiency while delivering faster suspension response. Are these rotors noisy? No. The anti-noise spring washers eliminate rattle while allowing proper float for thermal expansion. Can the rotor rings be replaced? Yes. Girodisc rotors are fully rebuildable—just replace the rings when worn and reuse the hats and hardware. Upgrade your Mercedes G63 AMG with Girodisc’s lightweight, rebuildable rear rotors—engineered to deliver superior cooling, reduced weight, and exceptional braking consistency on both road and track.

Girodisc Dimpled & Slotted Rear Rotors   The Girodisc A2-260DS dimpled & slotted rear rotor kit is engineered to deliver superior braking performance for your Mercedes G63. This two-piece rotor set combines race-proven features—floating mount, cooling vanes, and dimpled/slotted disc surface—to manage heat, reduce fade, and maintain dependable pedal feel under the most demanding conditions. High-Performance Design for Luxury Off-Road Braking The rotor hat is crafted from U.S.-sourced 6061-T6 aluminum and precisely machined for strength and weight savings. The friction ring is made from Girodisc’s proprietary cast iron, flux poured and fully machined in-house. Its dimpled & slotted surface improves pad bite and gas/heat dissipation, while the curved-vane internal geometry acts like a cooling pump to push air through the rotor during high-speed driving or spirited off-road use. Features • Fitment: Mercedes G63 rear axle• Two-piece rotor design: cast iron ring + aluminum hat• Dimpled & slotted rotor face for enhanced pad bite and heat control• Curved-vane internal geometry for active airflow & cooling• Floating mount system with cadmium-plated alloy steel drive pins and anti-noise washers• Class 12.9 hardware for high torque load retention• Reduces unsprung weight and improves braking consistency• Rings are replaceable—reuse hats and hardware when rings wear out• Sold/priced per pair Vehicle Fitment • Mercedes-AMG G63 4×4² / G63 AMG (various years) – Rear • Check your rotor diameter and caliper compatibility before order Girodisc A2-260DS Rear Rotors FAQs Will these work with OEM calipers? Yes. The Girodisc A2-260DS kit is designed to bolt directly to stock calipers with no modifications. What is the benefit of dimpled & slotted surfaces? These features help evacuate gases, maintain pad surface contact, and improve initial bite, especially under heavy use. Why use a floating two-piece design? The floating mount allows thermal growth of the ring without stress, reduces warpage, and helps self-center the rotor between pads. Are replacement rings available? Yes. Replacement cast iron rings can be purchased—allowing you to keep your original hats and hardware. Is this kit sold as a pair? Yes. The A2-260DS kit includes two rear rotors, sold as a pair. What brake pads and fluid should I use? Performance or track-rated pads combined with high-temperature fluid is recommended to fully capitalize on the cooling and consistency advantages of this rotor setup. Upgrade your Mercedes G63’s braking performance with the precision, cooling capability, and longevity of the Girodisc A2-260DS Dimpled & Slotted Rear Rotors

 McLaren 620R Rear Rotors The Girodisc system is a direct replacement for the OE rear rotors on the McLaren 620R. Designed for uncompromising track and street performance, these lightweight 2-piece floating rotors bolt directly to the car without any modifications. They maintain factory brake bias and ABS calibration while significantly improving heat dissipation, reducing unsprung mass, and enhancing overall braking consistency. Precision-Engineered for the Ultimate Track Weapon Built to handle the extreme braking loads of high-performance McLaren applications, Girodisc rotors are fully machined and assembled in the USA using aerospace-grade materials. The rotor hats are CNC-cut from 6061-T6 aluminum and anodized for durability, while the rings are cast from Girodisc’s proprietary high-carbon iron alloy. This advanced metallurgy ensures strength, thermal stability, and smooth pedal modulation even after repeated heat cycles. Girodisc A2-264 Vehicle Fitment McLaren 620R (2020+) McLaren 570S GT4 (rear fitment) McLaren 600LT (rear conversion fitment, verify caliper clearance) Features Direct OEM Replacement: Bolts directly to factory hubs and calipers—no modifications required. Lightweight Two-Piece Design: Reduces rotational mass and improves suspension response for sharper handling. Curved Vane Cooling: Directional internal vanes act as a centrifugal pump to move air through the disc and dissipate heat efficiently. Floating Mount System: Ten high-strength alloy drive pins and anti-noise spring washers allow controlled expansion while eliminating vibration or rattle. Replaceable Rotor Rings: The aluminum hats are reusable—only replace the iron rotor rings when worn. Made in the USA: Engineered, cast, and machined at Girodisc’s U.S. facility to motorsport standards. FAQs – Girodisc A2-264McLaren 620R Rear Rotors Are these rotors a direct fit for OEM calipers? Yes, they fit perfectly with the factory McLaren 620R calipers and mounting hardware. Do they improve cooling over stock rotors? Yes, the curved vane design and floating mount system drastically enhance cooling and prevent warping under high stress. Can they be used with performance pads? Absolutely. They’re compatible with both OEM and aftermarket racing pad compounds. Are they sold as a pair? Yes, Girodisc rotors are sold and priced per pair. Upgrade your McLaren 620R’s rear braking performance with Girodisc’s lightweight floating rotors. Built for endurance, precision, and confidence lap after lap—engineered to match the 620R’s race-bred character.

Girodisc 2-Piece Rear Brake Rotors – GT4 Clubsport The Girodisc A2-266 rear rotor set is a direct, bolt-on replacement for the OE cup car disc on the GT4 Clubsport platform. Using a lightweight aluminum hat and a proprietary cast-iron ring, these two-piece rotors reduce unsprung weight, improve cooling, and deliver repeatable performance under heavy track use while working perfectly with factory calipers and ABS. Race-bred construction, bolt-on simplicity Each rotor features a curved-vane internal design that pumps cooling air through the disc, managing temperatures during long stints. The floating mount uses high-strength alloy steel drive pins and anti-noise spring washers to allow axial and radial float, letting the ring expand with heat and self-center between the pads for consistent pedal feel. Features • Direct replacement for OE GT4 Clubsport rear discs• Two-piece design: proprietary cast-iron rings with 6061-T6 aluminum hats (U.S. sourced)• Curved-vane internal geometry for superior cooling• Floating drive-pin system with cadmium-plated hardware and class 12.9 cap screws• Anti-noise spring washers minimize rattle while allowing thermal growth• Reduced unsprung and rotational mass for sharper response• Rings are replaceable; reuse hats when the rings wear out• Sold/priced per pair Vehicle Fitment • Porsche Cayman GT4 Clubsport (981) – rear• Porsche 718 Cayman GT4 Clubsport (982) – rear• Note: If your car is equipped with OEM center-lock wheels, select the center-lock drive pin option. Girodisc A2-266 Rear Rotors – GT4 Clubsport FAQs Do these rotors fit with the stock calipers and ABS? Yes. They bolt on with no modifications and maintain factory brake bias and ABS functionality. What is the benefit of the two-piece floating design? It reduces weight, improves cooling, and allows the iron ring to expand under heat without coning or cracking, maintaining a consistent pedal with fewer hot spots. Are replacement rings available? Yes. When the rings are worn, simply replace the cast-iron rings and reuse the aluminum hats and hardware where applicable. How many drive pins are used? The A2-266 utilizes a high-strength floating system with multiple alloy steel pins and anti-noise spring washers to allow controlled float and quiet operation. Are these sold individually or as a set? Sold/priced per pair for the rear axle. What pads and fluid do you recommend? Pairing performance pads with a quality high-temperature fluid completes a reliable track package and helps prevent fade under extended use. Upgrade the rear brakes on your GT4 Clubsport with Girodisc A2-266 two-piece rotors for lighter weight, cooler running, and confidence-inspiring consistency every session.

Girodisc Dodge Viper TA Rear Rotors The Girodisc A2-270 Rear Rotor Kit is a lightweight, performance-engineered brake upgrade for the Dodge Viper TA. Designed to replace the factory rotors directly with no modifications, these 2-piece, fully floating assemblies deliver improved cooling, reduced unsprung weight, and increased responsiveness under hard braking. Lightweight 2-Piece Construction Each Girodisc assembly combines a CNC-machined 6061-T6 aluminum hat with a proprietary high-carbon cast iron rotor ring. The 2-piece floating configuration significantly reduces rotating mass and unsprung weight, resulting in better suspension response, sharper handling, and faster acceleration. These rotors provide superior heat dissipation and a firmer, more consistent brake pedal feel on both street and track. Race-Proven Floating Mount System Girodisc’s advanced floating mount system connects the rotor ring and hat using precision-engineered, cadmium-plated steel drive pins. These pins are secured with grade 12.9 cap screws and hardened washers, allowing the rotors to expand and contract under heat while maintaining axial and radial float. Anti-noise spring washers prevent rattle and ensure quiet operation for street driving. Vehicle Fitment Dodge Viper TA (Time Attack) Compatible with OEM calipers and pads Direct bolt-on installation — no modifications required Technical Specifications CMS Number: A2-270 Position: Rear Design: 2-piece floating rotor Material: Proprietary cast iron rotor with 6061-T6 aluminum hat Vane Design: Curved internal vanes for enhanced cooling Hardware: Cadmium-plated drive pins, class 12.9 screws, anti-noise washers Rebuildable: Yes — replaceable iron rings, reusable aluminum hats Sold/Price: Per pair FAQs for Girodisc A2-270 Are these rotors a direct replacement for my OEM setup? Yes, the Girodisc A2-270 rotors are a direct bolt-on replacement for the factory Viper TA rotors and work perfectly with OEM calipers. What advantages do Girodisc rotors offer? They provide superior cooling, reduced weight, and improved pedal consistency for both track and street driving. Can I replace the rings later? Yes, Girodisc rotors are fully rebuildable—simply replace the iron rotor rings when worn and reuse the aluminum hats. Do these rotors make noise? No. The anti-noise spring washers eliminate rattling while maintaining the benefits of a fully floating rotor system. Upgrade your Dodge Viper TA with Girodisc A2-270 Rear Rotors to experience track-proven braking performance, reduced weight, and long-term serviceability—all proudly engineered and manufactured in the USA.

Girodisc Chevrolet Camaro SS (6th Gen) Rear Rotors The Girodisc A2-271 Rear Rotors are a precision-engineered, direct replacement for the OEM discs on the sixth-generation Chevrolet Camaro SS. Designed to enhance braking performance, reduce weight, and improve cooling, these 2-piece floating rotors deliver track-ready reliability and street-friendly refinement—all while retaining factory fitment and ABS function. Lightweight Construction & Improved Cooling By upgrading to Girodisc’s two-piece rotor design, you eliminate unnecessary rotational mass. The lightweight 6061-T6 aluminum hat significantly reduces unsprung weight, improving suspension response and acceleration. The cast-iron outer rings are produced from Girodisc’s proprietary high-carbon alloy, featuring curved internal vanes that act as a centrifugal pump to draw cooling air through the rotor—perfect for high-performance driving and track sessions. Race-Grade Floating Mount System The rotors utilize a fully floating mount system that connects the rotor ring to the hat via 10 high-strength alloy steel drive pins. Each pin is cadmium-plated for corrosion resistance and secured with class 12.9 cap screws and hardened washers. Girodisc incorporates anti-noise spring washers to allow thermal expansion while maintaining a rattle-free, quiet operation suitable for both street and track use. Vehicle Fitment Chevrolet Camaro SS (6th Generation, 2016+) Compatible with factory rear calipers No modifications required — direct bolt-on replacement Technical Specifications CMS Number: A2-271 Position: Rear Design: 2-piece floating rotor Material: High-carbon cast iron ring with 6061-T6 aluminum hat Vane Design: Curved directional vanes Hardware: Cadmium-plated steel drive pins, class 12.9 cap screws Rebuildable: Yes — replace the rotor rings, reuse the hats Sold/Price: Per pair FAQs for the Girodisc A2-271 Are these rotors a direct fit? Yes, the Girodisc A2-271 rear rotors are a direct bolt-on replacement using the OEM calipers and hardware—no modifications needed. Do they improve braking performance? Absolutely. The reduced rotational mass improves throttle response and suspension compliance, while the curved vanes enhance cooling and fade resistance. Are they noisy? No. The floating hardware design uses anti-noise spring washers to eliminate rattle and vibration during street driving. Are these rotors rebuildable? Yes. The rotor rings can be replaced independently, allowing cost-effective rebuilds and extended service life. Upgrade your Chevrolet Camaro SS (6th Gen) with Girodisc’s lightweight, performance-engineered rear rotors for improved stopping power, cooling efficiency, and long-term value.

A2-272 Girodisc Porsche 992 GT3, 718 GT4 RS Rear Rotors Direct‑replacement 2‑piece rear rotors for the 992 GT3/GT3RS and 718 GT4 RS. Bolt‑on fit with factory calipers and pads; floating design controls heat and mass for consistent performance. A2-272 Girodisc Porsche Rear Rotor Vehicle Fitment Porsche 992 GT3/GT3RS – Rear (OEM iron brake cars) Porsche 718 Cayman GT4 RS – Rear Design & Cooling High‑carbon iron rings with curved vanes improve airflow and heat capacity. 6061‑T6 aluminum hats are reusable; spring‑preloaded hardware manages thermal growth while minimizing noise. A2-272 Girodisc Porsche Rear Rotor Features Direct OE replacement; no modifications required 2‑piece floating construction Reusable hats; ring‑only service Sold/priced per pair

Girodisc Ferrari Portofino / Roma Rear Iron Rotor Conversion The Girodisc A2-278 Rear Iron Rotor Conversion is engineered to replace the factory rear rotors on Ferrari Portofino and Roma models, offering a robust, high-performance iron alternative built for track use and aggressive street driving. This system integrates seamlessly with the OEM brake setup while providing enhanced durability, cooling, and serviceability. Design & Engineering Each rotor merges a 6061-T6 aluminum hat with a proprietary high-carbon cast iron ring, produced and polished in-house. This 2-piece floating configuration allows thermal expansion without distortion. The rotor’s 48 curved vanes act as an internal centrifugal pump, pulling air inward from the hub to cool the disc efficiently under repeated demands. The floating mount system uses cadmium-plated steel drive pins in concert with Belleville washers and spring clips to maintain pad alignment, prevent rattle, and allow precise rotational movement. This ensures quiet operation during street use while retaining full racing capability. Vehicle Fitment Ferrari Portofino (non-CCM models) Ferrari Roma (excluding carbon ceramic brake variants) Technical Specifications Part Number: A2-278 Position: Rear Material: High-carbon cast iron rotor ring with aluminum hat Vane Count: 48 curved directional vanes Hardware: Cadmium-plated steel drive pins, Belleville washers, spring clips Rebuildable: Replace rotor rings while reusing hats and hardware Sold/Price: Per pair Advantages Improved thermal capacity over OEM cast rotors Reduced replacement cost compared to carbon ceramic systems Floating design maintains brake consistency and pad centering Quiet operation with no rattle in street use Precision-engineered and manufactured in the USA FAQs for Girodisc A2-278 Does this require modifications? No. It’s a direct fit replacement for non-CCM Portofino and Roma rears. Is this suitable for track use? Yes. The conversion is designed to handle elevated heat and repeated high-load braking cycles. Can I replace only the iron rings? Yes. Replacement rotor rings are available for long-term maintenance without replacing the aluminum hats. Upgrade your Ferrari Portofino or Roma with Girodisc’s rear iron rotor conversion—premium cooling, lower operating cost, and consistent brake performance.

Girodisc BMW G8X M2, M3, M4 Rear Rotors Girodisc A2-282 2-piece rear rotors are a direct bolt-on for G87 M2, G80/G81 M3, and G82/G83 M4 without carbon ceramic brakes. Floating construction reduces unsprung/rotational mass and improves heat management while preserving OE parking brake and ABS. Vehicle Fitment BMW G87 M2 (non-CCB) – Rear BMW G80/G81 M3 (non-CCB) – Rear BMW G82/G83 M4 (non-CCB) – Rear Curved-Vane Cooling, Street-Friendly Float High-carbon rings with 48 curved vanes act as a centrifugal pump to pull air through the disc. Reusable 6061-T6 hats and spring-preloaded hardware control thermal growth and minimize rattle. Features Direct OE replacement for 370 mm rear rotors (non-CCB) 2-piece floating design reduces unsprung weight High-carbon iron rings; reusable aluminum hats 48 curved vanes for effective cooling Cadmium-plated high-strength drive pins; Belleville washers Manufactured and assembled in Bellingham, WA Sold/priced per pair Girodisc A2-282 FAQs Minimum service thickness? Replace rear rings at 22 mm or sooner if a crack reaches the edge. Parking brake compatibility? Fully compatible; hat offset maintains OE parking brake operation. Which rings match later? D2-282 rear replacement rings. Any coding or extra parts? No — this is a bolt-on rotor upgrade with OE calipers. Related Products D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors D1-282 Girodisc BMW G8X 380mm Front Replacement Rings

Girodisc Porsche 992 GT3 Cup Rear Rotors These Girodisc A2-287 2-piece rear rotors match the front A1-287 kit for the Porsche 992 GT3 Cup iron-brake configuration. Floating assemblies reduce unsprung mass and maintain factory braking balance. A2-287 Girodisc Porsche 992 GT3 Cup Rear Rotors Porsche 992 GT3 Cup – Rear (iron brakes) Durable Rings & Floating Hardware High‑carbon iron rings with curved vanes improve thermal stability and airflow. Reusable aluminum hats and spring‑preloaded hardware provide controlled float with street‑friendly noise characteristics. A2-287 Girodisc Porsche 992 GT3 Cup Rear Rotor Features Direct bolt‑on; uses OEM calipers 2‑piece floating construction 6061‑T6 hats; cadmium‑plated hardware Manufactured and assembled in Bellingham, WA Sold/priced per pair

A2-302 Girodisc Lamborghini Huracán STO Rear Iron Rotor Conversion These Girodisc A2-302 2-piece rotors directly replace the factory carbon-ceramic rears on the Huracán STO. They retain the OEM calipers; pad shape is unchanged, but use an iron-appropriate compound. Vehicle Fitment 2021+ Lamborghini Huracán STO (rear, CCB-equipped) Curved-Vane Cooling High-carbon iron rings with 48 curved vanes act as a centrifugal pump to move cooling air through the disc. Spring-preloaded hardware allows thermal growth without rattle. Girodisc A2-302 Features Direct CCB-to-iron conversion; OEM calipers retained 2-piece floating construction reduces unsprung/rotational mass Reusable 6061-T6 aluminum hats; cadmium-plated pins Manufactured and assembled in Bellingham, WA Sold/priced per pair  FAQs Which pads do I need? Same rear pad shape as OEM, but choose an iron-rotor compound. Minimum thickness? Replace rear rings at 26 mm or sooner if a crack reaches the edge. Any changes to parking brake? No — dimensions maintain OEM parking brake function. Related Products D2-302 Girodisc Lamborghini Huracán STO Rear Replacement Rings A1-302 Girodisc Lamborghini Huracán STO Front Iron Rotor Conversion D1-302 Girodisc Lamborghini Huracán STO Front Replacement Rings

Girodisc Toyota , BMW Rear Brake Rotors  These Girodisc A2-307 2-piece rear rotors directly replace the 345 mm rear rotor package on Toyota GR Supra 3.0 and select BMW G-chassis models. Floating construction reduces rotating mass and improves cooling while maintaining OE parking brake and ABS.  Vehicle Fitment Toyota GR Supra 3.0 (A90/A91) – Rear BMW G20/G21 M340i – Rear BMW G22/G23 M440i – Rear BMW G20/G22 with optional M Sport brakes – Rear BMW G01 X3 M40i & G02 X4 M40i – Rear BMW G29 Z4 M40i – Rear Applies to vehicles equipped with the 345 mm rear rotor package. Curved-Vane Cooling High-carbon iron rings with 48 curved vanes act as a centrifugal pump to move air through the disc. Reusable hats and spring-preloaded floating hardware allow thermal expansion without rattle for street use. Girodisc A2-307 Features Direct OE replacement; no modifications required 2-piece floating construction reduces unsprung/rotational mass High-carbon iron rings; reusable 6061-T6 aluminum hats 48-vane internal geometry for airflow and cooling Manufactured and assembled in Bellingham, WA Sold/priced per pair FAQs for the Girodisc A2-307 Minimum service thickness? Replace rear rings at 22 mm or sooner if a crack reaches the edge. Parking brake and shields? Retained — dimensions keep OE parking brake function and shield clearances. Related Products D2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Replacement Rings A1-307 Girodisc Toyota GR Supra, BMW 348mm Front Rotors D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings

Girodisc Cadillac CT4-V Blackwing Rear Rotors These Girodisc A2-318 2-piece rear rotors are a direct bolt-on for the CT4-V Blackwing, preserving parking brake function and ABS while reducing rotating mass and improving heat rejection compared to 1-piece rotors. A2-318 Vehicle Fitment Cadillac CT4-V Blackwing – Rear Efficient Cooling & Quiet Operation High-carbon iron rings with curved vanes act as a centrifugal pump to move air through the disc. Reusable 6061-T6 hats and spring-preloaded floating hardware allow thermal expansion without the rattle typical of loose floating setups. Features Direct OE replacement; no modifications required 2-piece floating construction reduces unsprung/rotational mass Curved vane internal geometry for airflow and cooling Reusable aluminum hats; cadmium-plated high-strength pins Manufactured and assembled in Bellingham, WA Sold/priced per pair A2-318 Girodisc Cadillac CT4-V Blackwing Rear Rotors FAQs Minimum service thickness? Girodisc recommends replacing rear rings at 26 mm or sooner if a crack reaches the ring edge. Are dust shields or parking brake affected? No — dimensions maintain OE parking brake function and shield clearances. Will these change brake balance? No — they retain OEM geometry and bias. Which rear rings match? Use D2-318 rear replacement rings. Related Products A1-318 Girodisc Cadillac CT4-V Blackwing Front Rotors D1-066 Girodisc 380×34 Front Replacement Rings D2-318 Girodisc Cadillac CT4-V Blackwing Rear Replacement Rings

A2-319 Girodisc Corvette C8 Z06, E-Ray Rear Rotors These Girodisc A2-319 2-piece rear rotors are a direct replacement for the factory rear rotors on the Corvette C8 Z06 and E-Ray. The floating two-piece construction improves cooling and reduces unsprung weight while maintaining street manners. Vehicle Fitment Chevrolet Corvette C8 Z06 (Rear) Chevrolet Corvette C8 E-Ray (Rear) Serviceable Two-Piece Rear Rotors High-carbon iron rings deliver stable braking under heat, while reusable aluminum hats lower long-term service costs. The 48 curved vane design acts like a centrifugal pump to draw air through the rotor and dissipate heat efficiently. Features Direct OEM replacement for C8 Z06 and E-Ray (rear) 2-piece floating rotor design reduces unsprung weight High-carbon iron rings for consistent performance 48 curved vanes for effective cooling Reusable aluminum hats Manufactured and assembled in Bellingham, WA A2-319 Girodisc Corvette C8 Z06, E-Ray Rear Rotors FAQs: Do these fit with OEM calipers? Yes, they bolt on and work with stock calipers. Are they noisy? No, the floating hardware is engineered for quiet street use. Can I replace just the rings later? Yes, use D2-319 rear replacement rings. Are they track-capable? Yes, they are designed for repeated heat cycles and performance driving. Related Products A1-320 Girodisc Corvette C8 Z06, E-Ray Front Iron Rotor Conversion A2-319 Girodisc Corvette C8 Z06, E-Ray Rear Rotors D1-320 Girodisc Corvette C8 398mm Front Replacement Rings D2-319 Girodisc Corvette C8 Z06, E-Ray Rear Replacement Rings

Girodisc BMW G8X M3, M4 Rear Iron Rotor Conversion These Girodisc A2-322 2-piece rotors convert the rear 380 mm CCB setup on G8X M3/M4 to high-carbon iron while retaining the OEM CCB calipers. No permanent mods — swap rotors and run the factory iron pad shape for the rear calipers. Vehicle Fitment BMW G80/G81 M3 with CCB – Rear BMW G82/G83 M4 with CCB – Rear Built for Heat, Quiet on the Street High-carbon iron rings with curved vanes act as a centrifugal pump to move air through the disc for consistent temperatures. Spring-preloaded floating hardware allows thermal growth without the rattle of loose float systems. Features Direct CCB-to-iron conversion; no coding required 2-piece floating construction reduces unsprung/rotational mass Curved-vane rings for efficient cooling Reusable aluminum hats; cadmium-plated pins Manufactured and assembled in Bellingham, WA Sold/priced per pair Girodisc A2-322 FAQs Which pads do I need? Use the factory iron rear pad shape for the G8X CCB calipers. Parking brake compatibility? Fully compatible; the hat offset maintains OE parking brake operation. Rear rotor size with this kit? 380 mm, matching the CCB system diameter. Minimum service thickness? Replace rear rings at 26 mm or sooner if a crack reaches the ring edge. Related Products D2-322 Girodisc BMW G8X Iron Conversion Rear Replacement Rings A1-322 Girodisc BMW G8X M3, M4 Front Iron Rotor Conversion D1-220 Girodisc BMW F8X/G8X 400mm Front Replacement Rings