Racing Brake Rotors

Toyota GR Corolla, Yaris Rear Replacement Rings Maintain peak braking performance on your Toyota GR Corolla or GR Yaris with Girodisc Rear Replacement Rings. Designed as direct replacements for your existing Girodisc two-piece rotors, these precision-machined iron rings restore like-new performance without replacing the aluminum hats—saving both money and downtime while keeping your car track-ready. Engineered Precision for Performance Each Girodisc ring is crafted from proprietary cast iron poured and machined entirely in the USA. The rotor features a curved vane design developed in racing, acting as a centrifugal pump to move cooling air through the disc. This ensures optimal temperature management and consistent braking under the extreme conditions your GR demands. Features Direct replacement for Girodisc two-piece rear rotors Made from proprietary U.S.-poured cast iron for strength and heat management Utilizes racing-inspired curved vane design for superior cooling Lightweight two-piece design reduces unsprung and rotational mass Restores full braking performance without the cost of new rotor hats 100% machined and finished in the USA Vehicle Fitment 2023–2025 Toyota GR Corolla 2021–2025 Toyota GR Yaris Toyota GR Corolla, Yaris Rear Replacement Rings FAQs: Are these replacement rings a direct fit for OEM rotors? No, these rings are designed exclusively for use with existing Girodisc two-piece rotor hats. They do not fit OEM or other aftermarket brake systems. Do these rings include new hardware? Replacement rings are typically supplied with new hardware and detailed instructions. Always verify the contents before installation. How do I know when to replace my Girodisc rings? Girodisc recommends replacing the rings when the minimum thickness is reached or if cracking, warping, or excessive wear is observed during inspection. Do I need to replace both sides at once? For optimal performance and balance, it’s strongly recommended to replace both rear rotor rings simultaneously. Can I install these myself? While experienced enthusiasts may perform the swap, professional installation and torque verification are recommended for safety and warranty compliance. Upgrade your GR’s stopping power and keep your Girodisc system performing like new with these direct-fit Rear Replacement Rings.

Girodisc Chevrolet Camaro (6th Gen) Rear Replacement Rings Maintain the razor-sharp braking performance of your 6th Gen Camaro with Girodisc 365mm rear replacement rings. These precision-engineered rings are direct replacements for Girodisc two-piece rotors, restoring the braking consistency and cooling efficiency demanded by track and street enthusiasts alike. Vehicle Fitment Compatible with:• 2016–2024 Chevrolet Camaro SS• 2017–2024 Chevrolet Camaro ZL1• 2019–2024 Chevrolet Camaro ZL1 1LE• 2016–2024 Chevrolet Camaro LT1 (with performance brake package)Note: These are friction rings only. They attach directly to existing Girodisc aluminum hats using the included floating hardware kit. Track-Tested Engineering Every Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and precision-machined in the USA. The curved internal vanes function as a centrifugal pump, pulling air through the disc to dissipate heat efficiently during hard braking. This design reduces fade and ensures consistent pedal feel through repeated heat cycles—whether you’re carving corners or pushing limits at the track. Features • Direct replacement for Girodisc 365mm rear rotors• Fits 6th Gen Camaro SS, ZL1, ZL1 1LE, and LT1 performance packages• High-carbon iron alloy ensures strength and stability under heat• Directional curved vane design improves cooling efficiency• Fully machined, balanced, and assembled in the USA• Includes new floating hardware kit• Sold/priced per pair Specifications • Diameter: 365mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and complete hardware kit• Made in the USA• Sold/priced per pair Girodisc D2-271 Replacement Ring FAQs Do these rings fit OEM Camaro rotors? No. These are designed exclusively for Girodisc two-piece rotor systems or compatible aftermarket hats. Is installation straightforward? Yes. These rings bolt directly to your existing Girodisc hats using the provided hardware. No modifications are required. Are these rotors suitable for track use? Absolutely. Girodisc rings are track-proven, offering superior heat management and resistance to warping or cracking. Can I reuse my current hardware? We recommend using the new hardware kit included with the rings for maximum safety and performance. Rebuild your Camaro’s braking system the right way with Girodisc D2-271 rear replacement rings — designed for performance, precision, and unmatched stopping confidence.

Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings Keep your Porsche’s braking system performing at its best with Girodisc D2-272 rear replacement rings. Designed as direct replacements for Girodisc two-piece rotor assemblies, these high-performance 380mm rings restore cooling efficiency, reduce fade, and maintain optimal pedal feel lap after lap. Vehicle Fitment Compatible with:• 2022–2025 Porsche 911 GT3 (992)• 2023–2025 Porsche 718 Cayman GT4 RS• 2023–2025 Porsche 718 Spyder RSNote: These are friction rings only. They attach to existing Girodisc aluminum hats using the supplied floating hardware kit. Precision-Crafted for Track and Street Each Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and machined in-house in the USA. The 72 curved directional vanes are designed to act as a centrifugal pump, pulling air through the disc to maximize cooling and stability under extreme heat. Whether you’re attacking corners on a race circuit or pushing hard on mountain roads, Girodisc rotors deliver consistent, confident braking. Features • Direct replacements for Girodisc 380mm rear rotors• Fits Porsche 992 GT3, GT4 RS, and Spyder RS models• Proprietary high-carbon iron construction for superior heat resistance• Curved directional vanes enhance airflow and cooling• Precision machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair Specifications • Diameter: 380mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and full hardware kit• Made in the USA• Sold/priced per pair Girodisc D2-272 Replacement Ring FAQs Are these compatible with OEM Porsche rotors? No. These rings are designed for Girodisc two-piece systems and will not fit factory one-piece or PCCB rotors. Do the rings come with hardware? Yes. Each set includes a full floating hardware kit with pins, bolts, and washers for an easy installation. Can these be used for track driving? Absolutely. Girodisc rotors are race-proven and built to handle sustained high temperatures without warping or fade. How often should replacement rings be changed? Replace them when the rotor reaches its minimum thickness or shows cracking that extends to the edge of the disc. Renew your Porsche’s braking confidence with Girodisc D2-272 rear replacement rings — precision-built for the 992 GT3 and GT4 RS, combining world-class craftsmanship with proven track performance.

D2-282 Girodisc 370mm Rear Replacement Rings Rings only, sold as a pair with new hardware. Reuse your existing Girodisc aluminum hats. These rings are engineered for Girodisc hats only and will not fit OE or other aftermarket hats. Vehicle Fitment BMW G87 M2 – Rear (for A2-282 kits) BMW G80/G81 M3 – Rear (for A2-282 kits) BMW G82/G83 M4 – Rear (for A2-282 kits) Easy Service, Consistent Performance High-carbon iron rings with 48 curved vanes provide reliable cooling and durability. New pins, clips, and Belleville washers restore proper float and clamping force. Features Replacement rings only; includes hardware Direct fit for Girodisc A2-282 rear rotor kits High-carbon iron; USA-poured and machined 48-vane internal design for airflow Sold/priced per pair D2-282 FAQs Minimum thickness? Replace at 22 mm or sooner if a crack reaches the outer edge. Do I reuse hardware? No — always install the supplied new hardware and torque per instructions. Do I need to re-bed pads? Yes — re-bed after ring installation to stabilize the friction layer.

Girodisc Ferrari 488 Challenge Evo Rear Replacement Rings Restore your 488 Challenge Evo’s braking edge with Girodisc rear replacement rings, engineered for uncompromising track performance. These high-carbon iron rings are direct replacements for your existing Girodisc two-piece rotors, delivering race-ready thermal stability, smooth pedal modulation, and rebuildable longevity lap after lap. Vehicle Fitment Compatible with:• Ferrari 488 Challenge Evo (All Years)Note: These are replacement rotor rings only and are designed to bolt directly to Girodisc aluminum hats using the included hardware kit. Track-Focused Engineering Each Girodisc ring is machined from proprietary high-carbon cast iron for superior heat management and crack resistance under extreme braking conditions. The curved vane internal design acts as a centrifugal air pump, efficiently pulling cool air through the disc to lower operating temperatures and reduce fade. Manufactured and finished in the USA, Girodisc replacement rings ensure factory-grade fit and race-grade reliability for serious competition use. Features • Direct replacement for Girodisc rear rotors on Ferrari 488 Challenge Evo• Proprietary high-carbon iron casting ensures strength and heat control• Curved directional vane design improves airflow and cooling efficiency• Includes new high-strength assembly hardware• Compatible only with Girodisc aluminum hats• Made and machined in the USA• Sold/priced per pair Specifications • Application: Rear axle• Vehicle: Ferrari 488 Challenge Evo• Material: High-carbon cast iron• Includes replacement hardware• Made in the USA• Sold/priced per pair Girodisc D2-285 Replacement Ring FAQs: Are these rotors or just the rings? These are replacement friction rings only, designed to mount to your existing Girodisc aluminum hats using the supplied hardware. Will these fit OEM Ferrari rotor hats? No. Girodisc rings are engineered exclusively for Girodisc hats and will not fit OEM or other aftermarket systems. What’s included in the kit? Each set includes two replacement rings and a full hardware kit with drive pins, washers, and fasteners. When should the rings be replaced? Replace your rings once they reach minimum thickness or if cracks extend to the outer edge. This maintains consistent, safe braking performance on track. Equip your Ferrari 488 Challenge Evo with Girodisc D2-285 replacement rings and maintain the braking precision and durability demanded by serious racers worldwide.

Porsche 992 GT3 Cup Rear Replacement Rings Keep your Porsche 992 GT3 Cup performing at its peak with the Girodisc D2-287 Rear Replacement Rings. Designed for serious racers and track-day purists, these high-performance 380x34mm iron rings are direct replacements for Girodisc’s two-piece rear rotors, offering the same exceptional strength, cooling, and balance demanded by professional motorsport. Each ring is machined from Girodisc’s proprietary high-carbon cast iron alloy, poured and finished entirely in the USA. With 48 curved directional vanes and a floating two-piece design, these replacement rings deliver consistent braking performance, improved heat management, and reduced unsprung weight—essential for precision braking on the track. Features and Benefits Direct replacement rings for Girodisc 992 GT3 Cup rear two-piece rotors Machined from proprietary U.S.-poured high-carbon cast iron for superior heat control 48 curved directional vanes maximize airflow and cooling efficiency Lightweight two-piece design minimizes unsprung mass for improved chassis response Includes new hardware: drive pins, bolts, and washers Fully machined, balanced, and assembled in the USA Vehicle Fitment 2022+ Porsche 911 GT3 Cup (992) These rings are designed exclusively for Girodisc aluminum hats and are not compatible with OEM or other aftermarket hat systems. They are a direct replacement for Girodisc rear assemblies used in competition or iron conversion setups. Why Choose Girodisc Girodisc is the benchmark in motorsport braking systems. Built for the extreme thermal loads of track racing, every rotor is precision-balanced and engineered to maintain consistent pad contact, cooling efficiency, and braking stability. The D2-287 replacement rings bring your Girodisc system back to new, ensuring your GT3 Cup continues braking as hard as it accelerates. FAQs Do these include the aluminum hats?No. The D2-287 kit includes only the rotor rings and new hardware. Your existing Girodisc hats are reused. Can these be used with factory Porsche rotors?No. Girodisc replacement rings are designed specifically for Girodisc two-piece rotors and will not fit OEM or other aftermarket systems. Are these rotors directional?Yes. Each rotor ring features curved internal vanes and must be installed on the correct side for proper airflow and cooling. What’s included?A pair of rear rotor rings (left and right) and a full hardware kit with drive pins, bolts, and washers. Ready to Refresh? Restore your Porsche 992 GT3 Cup’s braking system to peak performance with the Girodisc D2-287 Rear Replacement Rings. Designed for race conditions and precision driving, these rings deliver the strength, balance, and cooling efficiency your car deserves. Order your set today from Competition Motorsport and get back to dominating every corner and braking zone.

Lamborghini Huracán STO Rear Replacement Rings Maintain the world-class braking performance of your Lamborghini Huracán STO with Girodisc Rear Replacement Rings. These precision-engineered rings are designed to replace only the iron rotor surface, allowing you to reuse your Girodisc aluminum hats and restore peak braking efficiency with minimal expense. Each pair includes new hardware for a precise, secure installation. Race-Bred Performance, Track-Ready Design Machined in the USA from Girodisc’s proprietary cast iron, these replacement rings feature a curved vane design that actively channels cooling air through the rotor. The result is improved heat management, reduced fade, and consistent pedal feel during demanding conditions on both street and track. Features Sold as a pair and includes new replacement hardware Direct replacement for Girodisc two-piece rear rotors Reuse your existing Girodisc aluminum hats for cost savings Proprietary U.S.-poured cast iron for superior strength and thermal control Curved vane internal design for maximum cooling efficiency Fully machined and assembled in the USA Vehicle Fitment 2021–2025 Lamborghini Huracán STO (rear axle equipped with Girodisc two-piece rotors) Lamborghini Huracán STO Rear Replacement Rings FAQs: Do these fit OEM or factory two-piece rotors? No. These rings are specifically designed for Girodisc two-piece rotor systems and will not fit OEM or other aftermarket rotor assemblies. What’s included in the box? Two replacement rings, new hardware, and detailed installation instructions. Your Girodisc aluminum hats are reused. When should I replace my Girodisc rings? Replace when the rotors reach minimum thickness or if you notice heat checking, cracks, or excessive wear. Do I need to replace both sides at the same time? Yes. Always replace rings in pairs to maintain balanced braking and even wear. Can I install these myself? Installation can be done by experienced DIYers, but Girodisc recommends professional installation to ensure correct torque and safety. Do these rings come balanced? Yes. Girodisc replacement rings are pre-balanced to factory specifications for vibration-free performance. Please note: Girodisc replacement rings are designed for use only with Girodisc hats unless otherwise specified.

Toyota GR Supra, BMW 345mm Rear Replacement Rings Bring your Toyota GR Supra or BMW back to peak braking performance with the Girodisc D2-307 Rear Replacement Rings. These high-performance iron rotor rings are engineered as direct replacements for your Girodisc two-piece rotors, delivering exceptional cooling, reduced weight, and race-proven reliability for street and track use alike. When your Girodisc rotors reach their wear limit, these precision-machined rings let you refresh your braking system without buying new hats. Each ring is crafted from Girodisc’s proprietary U.S.-poured high-carbon cast iron, designed for extreme heat resistance and consistent braking under load. Whether you’re attacking corners on the track or driving hard on the street, Girodisc ensures your braking stays sharp, stable, and fade-free. Features and Benefits Direct replacements for Girodisc 345mm two-piece rear rotors Machined from proprietary high-carbon cast iron for superior durability 48 curved directional vanes optimize airflow and heat dissipation Lightweight design minimizes unsprung and rotational mass Includes all new drive pins, bolts, and washers for installation Fully machined, balanced, and assembled in the USA Vehicle Fitment 2020+ Toyota GR Supra (A90 / A91) 2019+ BMW Z4 M40i BMW G29 Platform (B58 engine) These rings are designed exclusively for Girodisc aluminum hats and will not fit OEM or other aftermarket rotor hats. Why Choose Girodisc Girodisc brake systems are the benchmark for performance and reliability in motorsport-inspired braking. The D2-307 replacement rings allow you to maintain top-tier braking performance at a fraction of the cost of full rotor replacement. Every Girodisc component is precision engineered, race-tested, and built to handle extreme thermal stress with consistent, confident braking lap after lap. FAQs Do these include the aluminum hats?No. The D2-307 kit includes only the iron rotor rings and a new hardware kit. Your existing Girodisc hats are reused. Can these be used with factory rotors?No. Girodisc replacement rings are designed exclusively for Girodisc two-piece rotors and will not bolt to OEM or other aftermarket hats. Are these rotors directional?Yes. Each rotor ring features curved internal vanes and must be installed on the correct side for optimal airflow and cooling efficiency. What comes in the box?A pair of 345mm rear rotor rings (left and right) plus all new drive pins, bolts, and washers. Ready to Upgrade? When it’s time to restore the full stopping power of your Toyota GR Supra or BMW Z4, the Girodisc D2-307 Rear Replacement Rings deliver uncompromising quality, cooling performance, and long-term durability. Order your set today from Competition Motorsport and keep your braking performance at its absolute best.

D2-318 Girodisc Cadillac CT4-V Blackwing Rear Replacement Rings D2-318 rear replacement rings are sold in pairs with new hardware. Reuse your existing Girodisc aluminum hats. Rings are designed exclusively for Girodisc hats and will not fit OE or other aftermarket hats. D2-318 Vehicle Fitment Cadillac CT4-V Blackwing – Rear (for A2-318 kits) Cost-Effective Service High-carbon iron rings with curved vanes provide consistent performance under repeated braking. New drive pins, clips, and Belleville washers restore proper float and clamping force. Features Replacement rings only; includes hardware Direct fit for Girodisc A2-318 rear rotor kits High-carbon iron; USA-poured and machined Curved vane internal design for cooling airflow Sold/priced per pair D2-318 Girodisc Cadillac Rear Replacement Rings FAQs What’s the recommended minimum thickness? Replace rear rings at 26 mm or sooner if any crack reaches the outer edge. Do I need to re-bed pads? Yes — re-bed after ring installation for optimal friction transfer. Can I mix these with OE front rotors? Yes, but best results come from matching front and rear Girodisc assemblies. Hardware reuse? Use the supplied new hardware; do not reuse worn pins/springs.

D2-319 Girodisc Corvette C8 Z06, E-Ray Rear Replacement Rings These Girodisc D2-319 rear replacement rings are sold in pairs and include replacement hardware. They are designed to be used with existing Girodisc aluminum hats on Corvette C8 Z06 and E-Ray rear applications and are not compatible with OEM or other aftermarket hats. Vehicle Fitment Chevrolet Corvette C8 Z06 (Rear) Chevrolet Corvette C8 E-Ray (Rear) Refresh Your Two-Piece Rear Rotors High-carbon iron rings with 48 curved vanes deliver strong cooling and stable performance under heavy braking. Reusing your Girodisc hats keeps long-term service costs low. Features Replacement rings only; reuse Girodisc aluminum hats Sold in pairs with replacement hardware High-carbon iron rings for reliable braking 48 curved vanes for efficient cooling Direct fit for Girodisc A2-319 rear rotor kits D2-319 Girodisc Corvette C8 Z06, E-Ray Rear Replacement Rings FAQs: Do these include hats? No, these are rings only and require existing Girodisc hats. Are they sold individually? No, they are sold as a pair. Are these compatible with OEM hats? No, only Girodisc hats are compatible. Are these suited for track use? Yes, they are built for demanding heat cycles. 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

BMW G8X Iron Conversion Rear Replacement Rings Renew your braking performance with the Girodisc D2-322 Rear Replacement Rings, designed specifically for the Girodisc A2-322 Iron Conversion rotor system on the BMW G8X platform. Whether your M3 or M4 originally came with carbon ceramics or standard iron rotors, these rings let you restore peak performance without replacing your entire rotor assembly. Each set is precision-machined from Girodisc’s proprietary U.S.-poured high-carbon cast iron, delivering the same championship-level performance and cooling efficiency as your original Girodisc rotors. Built to withstand extreme heat cycles and track abuse, the D2-322 replacement rings bring your braking system back to life with fresh hardware and exact OEM fitment. Features and Benefits Direct replacement rings for Girodisc Iron Conversion Rear Rotors (A2-322) Includes all new attachment hardware – pins, bolts, and washers Machined from proprietary high-carbon cast iron for superior heat capacity and durability 48 curved directional vanes maximize airflow for efficient cooling Lightweight two-piece rotor design reduces unsprung and rotational mass Fully machined, balanced, and assembled in the USA Vehicle Fitment BMW G80 M3 (2021+) BMW G82 M4 (2021+) BMW G83 M4 Convertible (2021+) These replacement rings are designed exclusively for Girodisc Iron Conversion kits (part number A2-322) and will not fit OEM or other aftermarket rotor hats, including factory two-piece assemblies. Why Choose Girodisc Girodisc has earned its reputation as the leader in performance braking systems, offering precision-engineered components built for the demands of modern sports cars. Each rotor ring is designed to provide consistent braking, optimized cooling, and maximum longevity. The D2-322 replacement set lets you keep your original Girodisc hats while restoring the braking response and confidence you expect from your G8X M car. FAQs Do these include the aluminum hats?No. The D2-322 kit includes only the iron rotor rings and new hardware. You will reuse your existing Girodisc hats from the A2-322 Iron Conversion kit. Are these compatible with OEM BMW carbon ceramic or two-piece rotors?No. These are only compatible with Girodisc Iron Conversion rotor hats (A2-322) and cannot be used with OEM or other aftermarket assemblies. Are they directional?Yes. Each rotor ring has curved internal vanes designed for optimal airflow and cooling when installed on the correct side. What’s included in the box?A pair of rear replacement rings (left and right) and a complete hardware kit with new drive pins, bolts, and washers. Ready to Upgrade? If your Girodisc iron conversion rotors have reached their wear limit, the D2-322 Rear Replacement Rings will bring your BMW M3 or M4 braking system back to its peak. Experience the legendary cooling and stopping performance that make Girodisc the go-to choice for track and street enthusiasts alike. Order your set today from Competition Motorsport and get back to maximum braking confidence.

Corvette C5, C6 Z51 Rear Replacement Rings When your Corvette’s braking performance starts to fade, the Girodisc D2-324 Rear Replacement Rings are the solution. Designed for the Corvette C5 and C6 Z51, these high-performance iron rings restore the incredible stopping power and thermal control that Girodisc systems are known for. Whether you’re tearing down a straightaway or cruising through canyon roads, this replacement set keeps your braking system fresh, balanced, and ready for action. Each ring is crafted from Girodisc’s proprietary high-carbon cast iron alloy, poured and machined entirely in the USA. The design utilizes curved internal vanes that act like miniature air pumps, constantly pulling cooling air through the rotor faces to minimize heat buildup and reduce brake fade. If your original Girodisc rotors have reached their wear limit, these direct replacements will bring your system back to peak performance without the cost of new hats. Features and Benefits Direct bolt-on replacements for existing Girodisc rear rotors Machined from proprietary U.S.-cast high-carbon iron for strength and heat capacity 48 curved directional vanes maximize airflow and cooling efficiency Lightweight two-piece design reduces unsprung mass and rotational inertia Includes brand-new mounting hardware and detailed installation instructions Manufactured, machined, and balanced in the USA Vehicle Fitment Chevrolet Corvette C5 Z51 (1997–2004) Chevrolet Corvette C6 Z51 (2005–2013) These replacement rings are engineered exclusively for use with Girodisc aluminum hats. They will not fit OEM or other aftermarket hat systems. Why Choose Girodisc Girodisc brake systems are trusted by professional racers and serious enthusiasts who demand precision, consistency, and reliability. Each component is CAD-modeled, race-tested, and built to deliver world-class braking response. Replacing worn rings instead of the entire assembly saves cost while maintaining the exact performance that made your Girodisc setup exceptional in the first place. FAQs Do these include the aluminum hats?No. The D2-324 kit includes only the iron rotor rings and new attachment hardware. Your existing Girodisc hats are reused. Can I use these with factory Corvette rotors?No. Girodisc rings are engineered specifically for Girodisc hats and will not bolt to OEM rotors or other aftermarket systems. What’s included in the box?Two rear rotor rings (left and right) plus all new drive pins, bolts, and washers for reassembly. Are these rotors directional?Yes. Each rotor features curved internal vanes and must be installed on the correct side for optimal airflow and cooling. Ready to Upgrade? Restore your Corvette’s stopping confidence with Girodisc D2-324 Rear Replacement Rings. Experience lighter, cooler, and more consistent braking lap after lap. Order your set today from Competition Motorsport and get back to braking perfection.

Girodisc Nissan Skyline GT-R (R32 V-Spec, R33, R34) Rear Replacement Rings These Girodisc D2-357 rear replacement rings are sold in pairs and include all necessary replacement hardware. They are designed to work exclusively with Girodisc aluminum hats. The hats are the only components that should be reused during installation. These rings are not compatible with OEM or other aftermarket hats. Vehicle Fitment • Nissan Skyline GT-R R32 V-Spec (Rear)• Nissan Skyline GT-R R33 (All models – Rear)• Nissan Skyline GT-R R34 (All models – Rear) Serviceable Design, Track-Ready Materials Machined from proprietary high-carbon iron castings formulated to Girodisc’s specifications, these replacement rings deliver excellent thermal stability and wear resistance under high-performance driving conditions. The 2-piece rotor design allows you to refresh the braking surface while retaining the original Girodisc hats, making maintenance both cost-effective and performance-oriented. Features • Sold in pairs with replacement hardware• Designed exclusively for Girodisc aluminum hats• Proprietary high-carbon iron rings for consistent braking• Cost-effective way to refresh worn rotors• High-quality construction made in the USA Girodisc Nissan Skyline GT-R (R32 V-Spec, R33, R34) Rear Replacement Rings FAQs: Do these include new hardware? Yes, all necessary replacement hardware is included with the rings. Can these rings be used with OEM hats? No, they are only compatible with Girodisc aluminum hats for proper fit and safety. Are these rings sold individually? No, they are sold in pairs. What is the correct part number for the rear replacement rings? D2-357 is the part number for Nissan Skyline GT-R rear applications.

Girodisc Replacement Rear Rotor Rings for Lotus Emira D2-388 Vehicle fitment • 2022+ Lotus Emira (rear axle) When the time comes to service your Lotus Emira’s rear brakes, the Girodisc D2-388 replacement rotor rings restore full performance without the cost of replacing the complete assembly. Designed to mount directly onto your existing A2-388 hats, these rings deliver the same high-carbon iron strength, curved-vane cooling, and track-ready performance as your original Girodisc setup. Durable, high-performance replacement rings Each ring is machined from Girodisc’s proprietary high-carbon iron alloy, engineered for thermal stability and durability under repeated heavy braking. The 48 curved internal vanes work like a centrifugal pump to draw air through the hub, keeping temperatures down during demanding street or track use. Because the hats are fully reusable, you only need to replace the rings — saving money while keeping your braking system race-ready. D2-388 Features • Direct replacement rings for Girodisc A2-388 rear rotor assemblies• 350 mm diameter × 32 mm thickness• Proprietary high-carbon iron metallurgy• 48 curved-vane internal cooling design• Designed and manufactured in-house in Bellingham, WA• Reuses your existing Girodisc aluminum hats and hardware• Recommended minimum thickness: 30 mm Note: These are rotor rings only. Hats and hardware are not included; designed for use with Girodisc A2-388 hats. Frequently Asked Questions Do these come with hats or hardware? No. The D2-388 kit includes rotor rings only. You’ll reuse your Girodisc A2-388 hats and hardware. How do I know when it’s time to replace the rings? Replace them when thickness reaches 30 mm or when cracks extend to the edge of the ring. Are these rings track-capable? Absolutely. They are built to handle repeated heat cycles while remaining compliant for street driving. Do I need special tools for installation? Standard shop tools are sufficient, but careful torqueing is required. Professional installation is recommended if you are not experienced with brake assembly.

Girodisc 328x28mm Replacement Rings (D54) Need new rings for your Brembo or StopTech big brake kit? Girodisc has you covered. These 328x28mm replacement rings are 100% plug-and-play with your existing hats, offering factory-fit compatibility, superior cooling, and precise braking performance. Each kit includes new floating pin hardware, so installation is seamless and secure. Vehicle Fitment These replacement rings fit Girodisc, Brembo, and StopTech two-piece rotor systems utilizing 328x28mm discs. Ideal for performance and track-focused vehicles that need consistent braking performance and rebuildable rotor assemblies.Note: These are friction rings only and install onto existing aluminum hats using the included hardware. Precision-Built for Performance The disc is made from Girodisc’s proprietary cast iron alloy, poured in the USA and machined in-house to exacting tolerances. Each rotor uses 48 curved directional vanes designed to function as a centrifugal pump, drawing air through the rotor to keep temperatures stable under high-stress braking. This engineering ensures exceptional fade resistance, consistent pedal feel, and extended rotor life — perfect for both street and circuit use. Features • Direct replacement for Girodisc, Brembo, and StopTech 328x28mm applications• Includes new floating hardware kit (two sets)• High-carbon iron alloy for strength and crack resistance• 48 curved vanes for efficient heat evacuation• Machined and balanced in the USA• Bolt-on fitment with existing aluminum hats• Sold/priced per pair Specifications • Application: 328x28mm two-piece rotor systems (D54)• Material: Proprietary high-carbon cast iron• Vane count: 48 curved directional• Includes: Two rotor rings and two hardware kits• Made in the USA• Sold/priced per pair Girodisc GD328.28.54 Replacement Ring FAQs Will these fit my Brembo or StopTech big brake kit? Yes — these are designed to bolt directly to existing 328x28mm hats for both Brembo and StopTech systems using the D54 configuration. Do the replacement rings include hardware? Yes. Each pair ships with two complete hardware kits for installation, including new floating pins, washers, and bolts. Do I need to buy new hats? Not unless your existing hats are damaged. Girodisc rings are made to reuse your original hats for cost-effective rebuilds. Can these be used for racing? Absolutely. Girodisc’s metallurgy and vane design are track-proven for endurance and sprint racing, providing stable, fade-resistant performance. Rebuild your Brembo or StopTech big brake kit the right way with Girodisc GD328.28.54 328x28mm replacement rings — precision, performance, and value engineered for serious braking.

Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) The Girodisc GD355.32.52 Replacement Rotor Rings (D52) are precision-built replacements for Girodisc two-piece rotor systems using the D52 configuration. Sized at 355mm x 32mm, these genuine Girodisc rings restore full braking performance while allowing you to reuse your existing aluminum hats and floating hardware, saving time and cost without compromising quality. Precision Engineering for Long-Term Performance Each Girodisc replacement ring is manufactured in-house in the USA from Girodisc’s proprietary cast iron alloy, designed to handle the extreme heat and stress of high-performance driving. The curved vane internal design acts as a centrifugal air pump, increasing airflow through the rotor to reduce operating temperatures and prevent fade. These rings are machined to exact tolerances and include a new hardware kit for a complete, bolt-on installation. Features • Dimensions: 355mm x 32mm (D52 configuration)• Direct replacement for Girodisc two-piece D52 systems• Reuses existing Girodisc aluminum hats• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for efficient cooling• Includes new hardware for installation• Directional vanes for left and right rotors• Sold/priced per pair Vehicle Fitment The Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) fit Girodisc D52-based two-piece systems used on:• Porsche Cayman / Boxster (Girodisc 355mm D52 kits)• BMW M2 / M3 / M4 (Girodisc 355mm D52 front or rear systems)• Audi S4 / S5 (Girodisc 355mm D52 setups)• Subaru WRX STI with Girodisc D52 355mm conversion• Other high-performance applications using Girodisc D52 hat patternAlways verify your hat pattern and rotor dimensions match the D52 specification before ordering. Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) FAQs What’s included in the kit? Two iron rotor rings (left and right) and a full set of new mounting hardware for reassembly. Do I reuse my aluminum hats? Yes. These rings are designed to bolt directly to your existing Girodisc hats using the included hardware kit. Are they compatible with OEM or other brands? No. Girodisc rings are engineered specifically for Girodisc aluminum hats and hardware. Are the rotors directional? Yes. Each rotor features curved vane geometry for left and right installation, ensuring optimal airflow and cooling. What material are they made from? Girodisc’s proprietary cast iron alloy provides high strength, excellent thermal stability, and consistent friction under extreme conditions. Are they sold as a set? Yes. The Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) are sold and priced per pair, including all required hardware. Restore factory-level braking performance and reliability with Girodisc GD355.32.52 Replacement Rotor Rings (D52)—precision-engineered in the USA for unmatched quality, cooling, and endurance.