GiroDisc Racing Brakes & Technologies
D2-260DS Girodisc Mercedes G63 Rear Replacement Rotor Rings (Dimpled & Slotted)
$1,150.00
Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings (Dimpled & Slotted)
The Girodisc D2-260DS Replacement Rotor Rings are precision-built replacements for the Girodisc two-piece rear rotors on the Mercedes G63 AMG. Featuring a dimpled and slotted surface for enhanced pad bite and heat dissipation, these 2-piece rotor rings restore peak braking performance while maintaining the quality and balance of your existing Girodisc system.
Factory Fit. Race-Bred Performance.
These 2-piece rotor rings are made from Girodisc’s proprietary cast iron alloy, poured and machined in the USA to exacting tolerances. The curved-vane internal geometry functions as a centrifugal air pump, drawing cool air through the disc to minimize fade and cracking. The dimpled and slotted surface helps evacuate gas and dust, improving pad contact and consistent braking feel. All new hardware is included, allowing for a quick and seamless reassembly onto your Girodisc aluminum hats.
Features
• Direct replacement for Girodisc Mercedes G63 rear rotors• Dimpled and slotted friction surface improves cooling and pad bite• Proprietary cast iron alloy poured and machined in the USA• Curved-vane internal geometry for efficient heat dissipation• Includes full hardware kit for installation• Reuses your existing Girodisc aluminum hats• Sold/priced per pair• Not compatible with OEM or non-Girodisc hats
Vehicle Fitment
• Mercedes-AMG G63 (all applicable years) – Rear• Designed for Girodisc 2-piece rotor systems• Will not fit OEM 2-piece rotors or non-Girodisc hats
Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings FAQs
What’s included with these replacement rings? The kit includes two dimpled and slotted iron rotor rings (left and right) along with new hardware for mounting to your existing Girodisc hats.
Can I reuse my original hats? Yes. These replacement rings are designed to bolt directly to your Girodisc aluminum hats, preserving the fit and balance of your existing system.
Are these compatible with OEM or other brands? No. Girodisc replacement rings are engineered exclusively for use with Girodisc hats and hardware.
What are the advantages of the dimpled and slotted surface? It enhances braking by improving pad bite, clearing gas and dust, and reducing the risk of glazing during repeated high-temperature stops.
Do these include curved vane internal design? Yes. The curved vane structure increases airflow through the disc, keeping rotor temperatures lower during spirited driving or track use.
Are they sold individually or as a pair? The Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings are sold as a matched left/right pair and include all necessary mounting hardware.
Keep your braking system in peak condition with Girodisc D2-260DS Dimpled & Slotted Rear Replacement Rings—precision-engineered for the Mercedes G63 and built to deliver the cooling, bite, and performance your Girodisc system is known for.
GiroDisc Racing Brakes & Technologies
D2-271 Girodisc Chevrolet Camaro (6th Gen) Rear Replacement Rings
$780.00
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 Racing Brakes & Technologies
D2-272 Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings
$1,030.00
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.
GiroDisc Racing Brakes & Technologies
D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings
$840.00
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 Racing Brakes & Technologies
D2-287 Girodisc Porsche 992 GT3 Cup Front Replacement Rings
$1,030.00
Porsche 992 GT3 Cup Front Replacement Rings
Restore world-class braking performance to your Porsche 992 GT3 Cup with the Girodisc D1-287 Front Replacement Rings. Engineered for endurance and precision, these 410x36mm iron rotor rings are direct replacements for Girodisc two-piece front rotors used in competition or iron conversion applications. Built to withstand extreme thermal loads and track punishment, the D1-287 rings deliver consistent, fade-free braking lap after lap.
Each ring is machined from Girodisc’s proprietary U.S.-poured high-carbon cast iron, chosen for its exceptional strength, heat resistance, and stability. Designed with 48 curved directional vanes, these rotors channel air efficiently for superior cooling and reduced thermal stress. The result is braking performance you can rely on through every corner, every lap, every session.
Features and Benefits
Direct replacement rings for Girodisc 992 GT3 Cup 410x36mm two-piece front rotors
Machined from proprietary U.S.-poured high-carbon cast iron for maximum thermal stability
48 curved directional vanes for optimal cooling and consistent performance
Lightweight two-piece floating design reduces unsprung mass and enhances handling
Includes all new hardware: drive pins, bolts, and washers
Precision machined, balanced, and assembled in the USA
Vehicle Fitment
2022+ Porsche 911 GT3 Cup (992)
These replacement rings are designed exclusively for Girodisc aluminum hats. They will not fit OEM or other aftermarket hat systems. This set replaces the original Girodisc front assemblies used in GT3 Cup and iron conversion configurations.
Why Choose Girodisc
Girodisc has set the standard for performance braking systems through precision engineering and uncompromising quality. Each rotor ring is developed for motorsport environments, ensuring consistent friction characteristics and resistance to thermal cracking under the most demanding conditions. With the D1-287 rings installed, your Porsche 992 GT3 Cup will brake with the same confidence and control that define true race-winning performance.
FAQs
Do these include the aluminum hats?No. The D1-287 kit includes only the iron rotor rings and a complete hardware kit. Your existing Girodisc hats are reused.
Can I install these with factory Porsche rotors?No. Girodisc replacement rings are engineered specifically for Girodisc hats and will not fit OEM or other aftermarket systems.
Are the rotors directional?Yes. Each ring features curved internal vanes that must be installed on the correct side for optimal airflow and cooling efficiency.
What’s included?Two 410x36mm front rotor rings (left and right) and a full hardware kit including new drive pins, bolts, and washers.
Ready to Refresh?
Bring your Porsche 992 GT3 Cup back to full braking potential with Girodisc D1-287 Front Replacement Rings. Designed for uncompromising performance on the track, these rotor rings deliver the cooling, balance, and durability needed for every race-winning lap. Order your set today from Competition Motorsport and keep your GT3 Cup braking with factory precision and motorsport strength.
GiroDisc Racing Brakes & Technologies
D2-287 Girodisc Porsche 992 GT3 Cup Rear Replacement Rings
$1,030.00
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.
GiroDisc Racing Brakes & Technologies
D2-302 Girodisc Lamborghini Huracán STO Rear Replacement Rings
$1,100.00
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.
GiroDisc Racing Brakes & Technologies
D2-307 Girodisc Toyota GR Supra / BMW 345mm Rear Replacement Rings
$780.00
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.
GiroDisc Racing Brakes & Technologies
D2-318 Girodisc Cadillac CT4-V Blackwing Rear Replacement Rings
$880.00
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.
GiroDisc Racing Brakes & Technologies
D2-319 Girodisc Rear Replacement Rotor Rings | Corvette C8 Z06 & E-Ray
$830.00
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
GiroDisc Racing Brakes & Technologies
D2-322 Girodisc BMW G8X Iron Conversion Rear Replacement Rings
$880.00
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.
GiroDisc Racing Brakes & Technologies
D2-357 Girodisc Nissan Skyline GT-R (R32/33/34) Rear Replacement Rings
$600.00
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 Racing Brakes & Technologies
D2-388 Girodisc Lotus Emira Rear Replacement Rings
$830.00
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.
Driven Racing Oil
Driven "GO" Synthetic 75W-90 Limited Slip Gear Oil 1 Quart
$19.99
DRIVEN 75W-90 Limited Slip Synthetic Gear Oil
BULK PRICING:
Buy 3-5 quarts, save $0.50 per quart
Buy 6+ or more, save $1.00 per quart
GO Synthetic SAE 75W-90
Synthetic 75W-90 Limited Slip Gear Oil utilizes next generation synthetic oil technology to provide consistent limited slip differential performance. Ideal for both clutch type and torsion type differentials, this competition proven formulation utilizes a proprietary additive package that reduces drag, resists foaming and maintains its viscosity under extreme heat and high loads. It delivers outstanding performance in extreme environments like autocross, off-road trucks, UTVs, track day cars and race vehicles. Exceeds the performance requirements of API GL-5. Recommended for limited slip differential applications. Viscosity typical of 75W-90.
Competition Proven To Deliver Performance and Protection
Driven Synthetic Racing Gear Oils are used in every rear differential by Joe Gibbs Racing and many other top race teams. The pursuit of increased power output and durability does not stop at the flywheel. The engineering staff at Joe Gibbs Racing looks for every possible advantage, and Driven Synthetic Racing Gear Oils deliver measurable performance gains in manual transmissions, rear end differentials, and power steering systems. These unique synthetic formulas have measured benefits with recorded temperature reductions of up to 15 degrees F compared to other brand gear oils.
Features:
Lowers Operating Temperatures
Reduces Friction For Max Power
High Shear Race Protection
No Drag Increase or Horsepower Reduction
Extended Change Intervals
Driven Racing Oil
Driven DT40 5W-40 European Sports Car Synthetic Oil
$11.99
DRIVEN DT40 (5W-40) High Performance Synthetic Oil
Bulk Pricing
Buy 5–11 quarts: save $0.50 per quart
Buy 12 or more: save $1.00 per quart
Formulated for Modern Sports Car Engines
Driven DT40 is engineered for water-cooled European sports car engines. Using advanced synthetic base oils, DT40 provides high-temperature and high-shear protection for high-RPM engines. It’s ideal for modern German, Italian, and British sports cars with or without variable valve timing—including turbocharged applications. DT40 reduces oil consumption by limiting vaporization and foaming, and is compatible with E85 and water/methanol injection systems. Viscosity typical of 5W-40.
Features of DRIVEN DT40 5W-40 Engine Oil
High temperature and high shear protection
ZDDP anti-wear additives
Meets the demands of variable valve timing systems
Reduced oil consumption
No Additives Needed
Every Driven Racing Oil lubricant is carefully formulated to provide the necessary protection for its specific application. Do not add aftermarket oil treatments—these can cause “additive clash,” degrading lubricant performance.
Driven lubricants are designed to complement one another, creating a synergistic protection system where the whole package is greater than the sum of its parts. Mixing brands of assembly lube, break-in oil, and race oil may reduce this benefit.
Driven Racing Oil
Driven XP6 Synthetic 15W-50 Racing Oil | 1 Quart
$16.99
DRIVEN XP6 Synthetic 15W-50 Racing Oil
Bulk Pricing
Buy 5–11 quarts: save $0.50 per quart
Buy 12+ quarts: save $1.00 per quart
Competition-Proven Performance
Driven Synthetic Racing Oils are formulated for the specific needs of racing engines. Developed with engineers and engine builders at Joe Gibbs Racing, this oil maximizes horsepower and protects vital parts while improving cold-start protection.
DRIVEN XP6 SAE 15W-50
Full synthetic 15W-50 version of race-proven XP1 Racing Oil
Excellent bearing oil film thickness and high-temperature protection
Designed for aluminum blocks and looser clearances
Recommended for methanol fuel and high-temperature applications (oil temps above 240°F)
Blendable with XP1, XP2, XP3, or XP0 (see Driven blending guide)
For use in high-compression engines
No Additives Needed
Driven Racing Oil products include the correct additive package for their intended applications, from flat tappet camshafts to hypoid ring and pinion sets. Do not add aftermarket oil treatments—“additive clash” can degrade lubricant performance.
Driven lubricants are designed to complement one another for a complete protection system. Mixing brands of assembly lube, break-in oil, and race oil may reduce this benefit.
