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GiroDisc Racing Brakes & Technologies D1-111 Girodisc Ferrari 398mm Front Replacement Rings $1,050.00

Girodisc Ferrari 398mm Front Replacement Rings Restore peak braking performance on your Ferrari with Girodisc 398mm front replacement rings. These high-carbon iron friction rings are designed to bolt directly to your existing Girodisc two-piece rotor hats, offering a precise fit and consistent stopping power for both street and track applications. Vehicle Fitment Compatible with:• Ferrari 458 Italia• Ferrari 458 Speciale• Ferrari 488 GTB / Spider• Ferrari F8 TributoNote: These are replacement rings only. They attach directly to your existing Girodisc aluminum hats using the included hardware. Track-Ready Performance and Quality Each Girodisc 398mm replacement ring is cast and machined in the USA using a proprietary high-carbon iron alloy that delivers superior heat stability and minimal distortion under extreme braking. The directional curved vane design acts as a centrifugal air pump, dramatically improving cooling efficiency and fade resistance. Whether you’re on the street or at the track, Girodisc ensures consistent pedal feel and reliable braking lap after lap. Features • Direct replacement for 398mm Girodisc front rotor assemblies• Compatible with OEM Ferrari calipers• High-carbon cast iron improves thermal stability and wear resistance• Curved vane internal design for optimal cooling• Precision balanced and machined in the USA• Includes complete new hardware kit• Sold/priced per pair Specifications • Diameter: 398mm• Position: Front• Material: High-carbon cast iron• Includes new hardware• Made in the USA• Sold/priced per pair Girodisc D1-111 Replacement Ring FAQs Do these fit the OEM Ferrari carbon-ceramic setup? No, these replacement rings are designed only for Girodisc two-piece iron conversions. OEM carbon-ceramic systems require a full iron-conversion kit. Will these work with my factory calipers? Yes, these are engineered to retain the OEM Ferrari calipers and maintain proper brake bias and pedal feel. Are new hats required? No. The Girodisc two-piece system allows re-use of your aluminum hats, making future rebuilds more cost-effective. Do the rings include hardware? Yes, each pair includes new floating pin and bolt hardware for proper installation. Refresh your Ferrari’s braking performance with Girodisc D1-111 398mm front replacement rings — engineered for precision, cooling efficiency, and endurance-grade reliability.

GiroDisc Racing Brakes & Technologies D1-114 Girodisc BMW E9X 335i Front Replacement Rings $680.00

D1-114 Girodisc BMW E9X 335i Front Rings Restore confidence in your BMW’s braking performance with Girodisc D1-114 355mm front replacement rings. These precision-engineered components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is machined from Girodisc’s proprietary high-carbon cast iron alloy, delivering enhanced cooling, fade resistance, and consistent pedal feedback for both street and track use. Vehicle Fitment Compatible with:• BMW E90 335i Sedan (2007–2011)• BMW E92 335i Coupe (2007–2013)• BMW E93 335i Convertible (2007–2013)• Compatible with models equipped with OEM Performance Brake Package or Girodisc two-piece front rotorsNote: Designed exclusively for Girodisc 355mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic discs. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 355mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior strength and heat control• Directional curved vanes improve airflow and cooling during extended braking• Maintains OEM brake bias, ABS, and DSC calibration• Precision-balanced for vibration-free operation and consistent modulation• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 355 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-114 BMW E9X 335i Front Ring FAQs Can these be installed with OEM BMW rotor hats? No. The D1-114 rings are designed for Girodisc aluminum hats only and will not fit factory one-piece rotors. Which brake pads are ideal for this setup? For street use, Ferodo DS2500 or Hawk HPS 5.0 pads provide quiet operation and smooth bite. For track use, Pagid RS29 or Carbotech XP10 offer consistent friction under high heat. What torque should be applied to the hardware? Torque each bolt to 12 ft-lbs (16 Nm) using blue Loctite, and recheck after one full heat cycle or initial track session. Are these rotors directional? Yes. Each rotor is labeled for left and right installation, ensuring the curved vanes circulate air efficiently for maximum cooling performance. Upgrade your BMW 335i’s braking system with Girodisc D1-114 355mm front replacement rings — designed for precision, cooling, and reliability on the street or track.

GiroDisc Racing Brakes & Technologies D1-117 Girodisc Corvette C6 Z06, Grand Sport Front Replacement Rings $680.00

D1-117 Girodisc Corvette C6 Z06, Grand Sport Front Replacement Rings Renew your Corvette’s braking performance with Girodisc D1-117 355mm front replacement rings. These rings are designed to bolt directly to existing Girodisc aluminum hats using the supplied floating hardware kit. Crafted from Girodisc’s proprietary high-carbon cast iron alloy, they deliver outstanding thermal management, consistent bite, and fade-free braking under extreme heat, making them the perfect upgrade for both track-day drivers and daily enthusiasts. Vehicle Fitment Compatible with:• Chevrolet Corvette C6 Z06 (2006–2013)• Chevrolet Corvette C6 Grand Sport (2010–2013)Note: Designed exclusively for Girodisc 355mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 355mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior thermal control• Directional curved vanes optimize cooling and airflow during repeated hard stops• Maintains OEM brake balance, ABS, and traction control calibration• Precision-balanced for smooth, vibration-free braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 355 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and full hardware kit• Sold/priced per pair Girodisc D1-117 Corvette C6 Z06, Grand Sport Front Replacement Ring FAQs Do these fit OEM Corvette rotor hats? No. The D1-117 rings are designed only for Girodisc aluminum hats and cannot mount to OEM one-piece or carbon-ceramic assemblies. Which brake pads are best for these rotors? For street performance, use Ferodo DS2500 or Hawk HPS 5.0. For track driving, Pagid RS29 or Hawk DTC-70 deliver excellent high-temperature stability and modulation. Do I need to bed the rotors before track use? Yes. Perform 8–10 medium-pressure stops from 60 mph to evenly transfer pad material to the rotor, then allow the brakes to cool before full use. Are these rotors directional? Yes. Each ring is marked for left and right installation. Proper orientation ensures correct airflow through the internal vanes for maximum cooling. Upgrade your Corvette’s stopping power with Girodisc D1-117 355mm front replacement rings — engineered for precision, endurance, and race-proven heat control on street or track.

GiroDisc Racing Brakes & Technologies D1-119 Girodisc Lamborghini Aventador Front Replacement Rings $1,050.00

Girodisc Lamborghini Aventador Front Replacement Rings Renew your Lamborghini Aventador’s braking performance with Girodisc 400mm front replacement rings. These precision-engineered iron rings are designed as direct replacements for your existing Girodisc two-piece rotors, providing the same world-class braking response and heat management that Aventador owners expect from a track-proven system. Vehicle Fitment Compatible with:• Lamborghini Aventador LP700-4• Lamborghini Aventador S• Lamborghini Aventador SV / SVJNote: These are replacement friction rings only. They bolt directly to existing Girodisc aluminum hats using the supplied hardware kit. Precision Engineering for Supercar Performance Each Girodisc replacement ring is cast and machined in the USA from a proprietary high-carbon iron alloy developed for maximum heat capacity and crack resistance under extreme braking conditions. The rotor features a curved directional vane design that acts as a centrifugal air pump, pulling air through the disc to improve cooling efficiency and prevent fade. The result: consistent, confidence-inspiring braking performance on both the road and the circuit. Features • Direct replacement for 400mm Girodisc front rotor assemblies• Designed for Lamborghini Aventador LP700, S, SV, and SVJ• High-carbon iron alloy ensures maximum strength and thermal control• Curved directional vanes for efficient cooling• Precision machined and balanced in the USA• Includes full floating hardware kit• Sold/priced per pair Specifications • Diameter: 400mm• Position: Front• Material: High-carbon cast iron• Includes: Two replacement rings and full hardware kit• Made in the USA• Sold/priced per pair Girodisc D1-119 Replacement Ring FAQs Are these compatible with OEM carbon-ceramic brakes? No. These are designed exclusively for Girodisc iron rotor conversions and will not fit OEM carbon-ceramic setups. Do I need new hats to install these? Not unless your existing Girodisc hats are damaged. These rings are designed to bolt directly to your current hats using the included hardware. Will these affect my ABS or traction systems? No. Girodisc designs maintain the exact geometry and mass balance required for OEM electronic systems to function correctly. Are these suitable for track use? Yes — Girodisc rotors are engineered for high-heat, high-load conditions typical of track driving, ensuring repeatable braking performance and long service life. Restore your Aventador’s precision stopping power with Girodisc D1-119 400mm front replacement rings — American-made, race-developed, and engineered for the ultimate supercar braking experience.

GiroDisc Racing Brakes & Technologies D1-122 Girodisc Porsche 991.1 S, 4S, GTS Front Replacement Rings $880.00

D1-122 Girodisc Porsche Front Rings Maintain your Porsche’s precision braking feel with Girodisc D1-122 340mm front replacement rings. Designed to bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit, these rings provide OEM fitment with track-proven performance. Each rotor ring is CNC-machined from Girodisc’s proprietary high-carbon cast iron, offering exceptional heat management, reduced unsprung weight, and improved consistency under demanding driving conditions. Vehicle Fitment Compatible with:• Porsche 991.1 Carrera S (2012–2016)• Porsche 991.1 Carrera 4S (2012–2016)• Porsche 991.1 Carrera GTS (2014–2016)Note: Designed exclusively for Girodisc 340mm two-piece front rotor systems. Not compatible with OEM one-piece or PCCB carbon-ceramic rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 340mm two-piece front rotors• High-carbon iron alloy ensures stable friction and long-term durability• Directional curved vanes optimize cooling airflow and reduce rotor temperatures• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced to eliminate vibration and ensure smooth braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 340 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair Girodisc D1-122 Porsche Front Replacement Ring FAQs Can these be used with OEM Porsche rotor hats? No. These rings are engineered specifically for Girodisc aluminum hats and will not fit OEM one-piece or PCCB systems. Which brake pad compounds are recommended? For street and occasional track driving, Pagid RS29 or Ferodo DS2500 pads are excellent choices. For full track use, use higher-friction compounds such as Pagid RSL1. What torque specification is required for the hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite, then recheck after one full heat cycle for proper seating. Are these rotors directional? Yes. Each rotor is marked for left or right installation to ensure proper airflow through the curved internal vanes, maximizing cooling efficiency. Upgrade your Porsche 991.1 Carrera’s braking performance with Girodisc D1-122 340mm front replacement rings — designed for heat control, balance, and endurance from road to track.

GiroDisc Racing Brakes & Technologies D1-123 Girodisc Mercedes 390mm Front Replacement Rings $1,030.00

D1-123 Girodisc Mercedes 390mm Front Replacement Rings Maintain the uncompromising stopping performance of your AMG with Girodisc D1-123 390mm front replacement rings. These precision-engineered rings are designed as direct replacements for Girodisc’s two-piece systems, bolting to your existing aluminum hats using the supplied floating hardware kit. Each rotor is machined from Girodisc’s proprietary high-carbon cast iron to deliver outstanding heat control, consistent braking feel, and fade resistance in both spirited road and track use. Vehicle Fitment Compatible with:• Mercedes-Benz C63 AMG (W204, 2008–2015)• Mercedes-Benz E63 AMG (W212, 2010–2016)• Mercedes-Benz CLS63 AMG (C218, 2012–2017)• Mercedes-Benz S63 AMG (W222, 2014–2017) – Iron rotor conversionNote: Designed for Girodisc 390mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic discs. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 390mm two-piece front rotors• CNC-machined from high-carbon iron alloy for superior heat resistance• Directional curved vanes maximize airflow and cooling efficiency• Maintains factory brake bias, ABS, and ESP calibration• Precision-balanced to eliminate vibration and maintain pedal feel• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 390 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair Girodisc D1-123 Mercedes 390mm Front Replacement Ring FAQs Can these fit the factory AMG rotor hats? No. The D1-123 rings are designed exclusively for Girodisc aluminum hats and cannot mount to OEM one-piece or carbon-ceramic assemblies. What pad compounds pair best with these rotors? For street and light track use, Ferodo DS2500 or Pagid RS29 pads perform well. For dedicated track work, use Pagid RSL1 or Endless ME20 for optimal friction and fade resistance. Do these rotors require a specific bedding process? Yes. Perform 8–10 moderate stops from 60 mph to evenly transfer pad material, then allow the brakes to cool completely before hard use. Are these rotors directional? Yes. Each ring is labeled for left or right installation to ensure proper airflow through the internal vanes for maximum cooling. Upgrade your AMG’s braking capability with Girodisc D1-123 390mm front replacement rings — engineered for performance, heat control, and reliability under the most demanding conditions.

Two-piece Girodisc brake rotors with curved slots with black rotor hats and gold-colored hardware.

GiroDisc Racing Brakes & Technologies D1-126 GiroDisc Replacement Rotors $950.00

REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

GiroDisc Racing Brakes & Technologies D1-127 Girodisc Porsche 997 GT3 380mm Front Replacement Rings $1,030.00

Girodisc Porsche 997 GT3 Front Rings Maintain your Porsche’s legendary braking precision with Girodisc D1-127 380mm front replacement rings. Designed as direct replacements for Girodisc’s two-piece systems, these high-performance rings bolt to your existing aluminum hats using the included floating hardware kit. Each rotor is machined from Girodisc’s proprietary high-carbon cast iron for superior heat management, consistent friction, and fade-free performance in both street and track environments. Vehicle Fitment Compatible with:• Porsche 997 GT3 (2006–2011)• Porsche 997 GT3 RS (2007–2011)• Porsche 997.2 GT3 and GT3 RS (380mm front rotors)Note: Designed for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM PCCB carbon-ceramic rotors or one-piece iron discs. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• CNC-machined from high-carbon iron alloy for maximum thermal stability• Directional curved vanes optimize airflow and cooling efficiency• Maintains factory brake bias, ABS, and PSM calibration• Precision-balanced to eliminate vibration and ensure smooth operation• Designed exclusively for Girodisc aluminum hats used in GT3 applications Specifications • Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-127 Porsche 997 GT3 Front Ring FAQs Will these fit the OEM Porsche GT3 rotor hats? No. These replacement rings are designed specifically for Girodisc aluminum hats and are not compatible with OEM one-piece or PCCB setups. Which brake pads perform best with these rotors? For spirited road use, Ferodo DS2500 or Hawk HPS pads work well. For track and racing use, Pagid RS29 or Endless ME20 offer high-temp stability and consistent bite. What torque should I apply to the hardware bolts? Torque to 12 ft-lbs (16 Nm) using blue Loctite. Recheck after the first full heat cycle to ensure even seating and proper float. Are these rotors directional? Yes. Each rotor is marked for left or right installation, ensuring the internal vanes pull air through the disc to maximize cooling under sustained braking. Refresh your GT3’s braking system with Girodisc D1-127 380mm front replacement rings — engineered for durability, precision, and race-proven performance lap after lap.

GiroDisc Racing Brakes & Technologies D1-128 GiroDisc Replacement Rotor Rings $950.00

D1-128 Girodisc Front Replacement Rotor Rings FITS: FERRARI 458 CHALLENGE REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT. Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

GiroDisc Racing Brakes & Technologies D1-130 Girodisc Audi B8 S4/S5 Front Replacement Rings $680.00

D1-130 Girodisc Audi B8 S4, S5 Front Replacement Rings Enhance your Audi S4 or S5’s braking performance with Girodisc D1-130 345mm front replacement rings. These precision-machined rings bolt directly to your existing Girodisc aluminum hats using the supplied floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast iron, delivering improved cooling, reduced fade, and exceptional pedal consistency during high-performance street or track use. Vehicle Fitment Compatible with:• Audi S4 (B8/B8.5, 2010–2016)• Audi S5 Coupe & Cabriolet (B8/B8.5, 2008–2017)• Audi SQ5 (2014–2017)Note: Designed exclusively for Girodisc 345mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 345mm two-piece front rotors• CNC-machined from high-carbon iron alloy for maximum strength and heat resistance• Directional curved vanes promote airflow and enhance heat dissipation• Maintains factory brake bias, ABS, and ESC calibration• Balanced and inspected to eliminate vibration• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 345 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair Girodisc D1-130 Audi B8 S4/S5 Front Ring FAQs Can I use these rings with the OEM Audi rotor hats? No. These rings are only compatible with Girodisc aluminum hats and cannot mount to factory one-piece or ceramic setups. Which pad compounds are recommended? For street and light track use, Ferodo DS2500 are ideal. For aggressive track applications, use Pagid RS29 for consistent high-temperature performance. Are these rotors directional? Yes. Each rotor is clearly marked for left or right installation, ensuring the curved vanes channel air correctly through the disc for optimal cooling. What torque specification should I use on the hardware? Tighten all hardware bolts to 12 ft-lbs (16 Nm) using blue Loctite, and recheck torque after one full heat cycle or track session. Upgrade your Audi’s braking system with Girodisc D1-130 345mm front replacement rings — engineered for precision cooling, superior modulation, and performance that endures lap after lap.

GiroDisc Racing Brakes & Technologies D1-135 Girodisc Porsche 981, 718 Front Replacement Rings $880.00

Girodisc Front Replacement Rings for Porsche 981 / 718 Restore your braking performance without replacing the entire rotor assembly. Girodisc D1-035 front replacement rings are sold in pairs and include all new hardware. Simply bolt them to your existing Girodisc hats to bring your braking system back to peak performance. D1-135 Vehicle fitment • Porsche 981 / 718 Cayman & Boxster (front axle) equipped with Girodisc 2-piece rotors.• Compatible exclusively with Girodisc aluminum hats; not designed for use with OEM or other aftermarket hats, even on factory 2-piece rotor vehicles. Note: Always verify hat ID, bolt pattern, and rotor outer diameter compatibility before installation. Precision-engineered replacement solution Each D1-135 ring is manufactured from high-carbon cast iron and heat-treated for durability. These rings are a direct replacement for worn Girodisc rings, allowing you to keep your lightweight aluminum hats and floating hardware while restoring performance. D1-135 Features • Sold as a pair with all replacement mounting hardware• High-carbon cast iron rotor rings• Bolt-on fitment to Girodisc hats (no modifications required)• Balanced and heat-treated for consistent performance• Compatible with Girodisc floating rotor design using drive pins, washers, and spring clips• Manufactured in-house in Bellingham, WA from domestically sourced materials• Designed for longevity and serviceability Service guidance • Replace rings when thickness reaches the minimum specification or if cracks extend to the ring edge.• Reuse Girodisc hats and install new D1-135 rings with supplied hardware for a cost-effective refresh. Get your Porsche 981 / 718 back to maximum braking performance with Girodisc D1-135 front replacement rings—an efficient, high-quality service solution designed to keep you on track.

GiroDisc Racing Brakes & Technologies D1-147 Girodisc Front Replacement Rotor Rings | Corvette, Camaro (370mm) $880.00

D1-147 Girodisc Corvette C7 Z06 Front Replacement Rings The Girodisc D1-147 Front Replacement Rings are designed for use with the A1-319 Girodisc front rotor kits for the 2023+ Chevrolet Corvette C8 Z06. These replacement rings allow you to reuse your existing Girodisc aluminum hats, lowering long-term brake costs while maintaining the same high level of performance. Vehicle Fitment Chevrolet Corvette C8 Z06 (without Z07 carbon ceramic brake package) Chevrolet Corvette C7 Z06 & Grand Sport For use with Girodisc front rotor kits using a 370mm rotor ring Rings and hardware only – designed exclusively for Girodisc hats Serviceable Two-Piece Design These rings are machined from Girodisc’s proprietary high-carbon iron casting and feature 72 curved vanes that act as a centrifugal pump to maximize cooling efficiency. Each set includes new floating hardware to restore proper rotor float during service. Replacing only the rings keeps consumable costs down while retaining full braking performance. Features Replacement rings only; reuse your A1-319 Girodisc aluminum hats High-carbon iron with 72 curved vanes for superior airflow and cooling Includes new floating hardware for a complete refresh Designed exclusively for Girodisc hats Minimum recommended ring thickness: 32 mm D1-147 Girodisc Front Replacement Rings FAQs: Do these include hats? No. These are rings only and must be installed on existing A1-319 Girodisc aluminum hats. Can I use these with OEM rotors? No. They are designed exclusively for Girodisc rotor kits. Do they come with new hardware? Yes. All replacement rings include new floating hardware. When should the rings be replaced? Replace them when the thickness reaches 32 mm or if cracks propagate to the outer edge under inspection. Are they directional? Yes. Each ring is side-specific, with directional curved vanes for optimal cooling.

GiroDisc Racing Brakes & Technologies D1-152 Girodisc Audi 370x32mm Front Replacement Rings $880.00

D1-152 Girodisc Audi Front Rings Enhance your Audi’s stopping power with Girodisc D1-152 370x32mm front replacement rings. These precision-engineered rotors are designed as direct replacements for Girodisc two-piece systems, bolting to your existing aluminum hats with the included floating hardware kit. Each rotor ring is machined from Girodisc’s proprietary high-carbon iron alloy for outstanding heat control, consistency, and fade resistance during spirited street driving or full track use. Vehicle Fitment Compatible with:• Audi RS5 (B8/B8.5, 2013–2015)• Audi S6 / S7 (C7, 2013–2018)• Audi A6 / A7 3.0T (Performance package models)Note: Designed exclusively for Girodisc 370x32mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 370x32mm two-piece front rotors• CNC-machined from high-carbon cast iron for exceptional thermal performance• Directional curved vanes maximize airflow and cooling capacity• Maintains OEM brake bias, ABS, and ESC calibration• Balanced to eliminate vibration and ensure smooth, quiet braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 370 mm• Thickness: 32 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-152 Audi Front Replacement Ring FAQs Can I use these rings with factory Audi rotor hats? No. These are designed specifically for Girodisc aluminum hats and will not mount to OEM one-piece or ceramic hats. What pad compounds pair best with these rotors? For street/track versatility, use Ferodo DS2500 or Pagid RS29 pads. For pure track work, Carbotech XP10 provide excellent high-temp consistency. Do these require a specific bedding-in procedure? Yes. Perform 8–10 moderate stops from 60 mph to properly transfer pad material, then allow the rotors to fully cool before heavy use. What torque settings should be used for hardware bolts? Torque to 12 ft-lbs (16 Nm) with blue Loctite applied. After one heat cycle, verify all fasteners remain tight before further use. Upgrade your Audi RS or S model with Girodisc D1-152 370x32mm front replacement rings — engineered for precise fitment, superior cooling, and race-ready performance without compromise.

GiroDisc Racing Brakes & Technologies D1-154 Girodisc Porsche 410mm Front Replacement Rings $1,130.00

D1-154 Girodisc Porsche 410mm Front Replacement Rings Refresh your Porsche’s braking system with Girodisc D1-154 410mm front replacement rings. These precision-engineered rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each rotor ring is machined from Girodisc’s proprietary high-carbon cast iron, ensuring exceptional heat resistance, consistent friction, and fade-free braking through repeated track sessions or spirited road use. Vehicle Fitment Compatible with:• Porsche 991 GT3 / GT3 RS (2014–2019)• Porsche 991 Turbo / Turbo S (2014–2019)• Porsche 992 GT3 (Iron conversion applications)Note: Designed for Girodisc 410mm two-piece front rotor systems. Not compatible with OEM PCCB carbon-ceramic discs or one-piece factory iron rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 410mm two-piece front rotors• High-carbon iron construction provides excellent thermal stability and long wear life• Directional curved vanes increase airflow and cooling efficiency under sustained braking• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced for smooth and consistent performance• Designed exclusively for Girodisc aluminum hats used in Porsche iron-conversion kits Specifications • Diameter: 410 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-154 Porsche 410mm Front Replacement Ring FAQs Can these be used with OEM Porsche carbon-ceramic hardware? No. The D1-154 rings are specifically for Girodisc iron conversion hats and cannot mount to PCCB carbon-ceramic assemblies. What pad compounds work best with these rotors? For dual street/track use, Pagid RS29 or Ferodo DS1.11 are recommended. For daily use, choose low-dust compounds like Ferodo DS2500 or Hawk HPS 5.0. What torque should I apply to the hardware bolts? Torque each bolt to 12 ft-lbs (16 Nm) using blue Loctite. After one full heat cycle, verify all fasteners are secure. Are these rotors directional? Yes. Each rotor is marked for left or right installation. Follow the rotation arrows to ensure proper airflow through the curved vane structure for optimal cooling. Upgrade your Porsche’s braking confidence with Girodisc D1-154 410mm front replacement rings — precision-crafted for heat control, consistency, and race-proven performance lap after lap.

GiroDisc Racing Brakes & Technologies D1-156 GiroDisc Replacement Rotor Rings $1,050.00

D1-156 Girodisc Front Replacement Rotor Rings REPLACEMENT ROTOR RINGS AND INSTALLATION HARDWARE ONLY. DOES NOT INCLUDE ALUMINUM HATS. Competition Motorsport is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country.We ship most products same or next business day to ensure we meet your delivery deadline. The Girodisc replacement rotor system is a direct rotor disc replacement for the Girodisc 2-piece hat and rotor and no modifications are necessary. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance.The alloy drive pins transfer the load from braking while maintaining the axial and radial float between the disc rotor and hat.The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece Girodisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

GiroDisc Racing Brakes & Technologies D1-157 Girodisc BMW E9X M3 Front Replacement Rings $780.00

D1-157 Girodisc BMW E9X M3 Front Replacement Rings Restore the high-performance braking balance of your BMW M3 with Girodisc D1-157 380mm front replacement rings. These precision-machined components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is made from Girodisc’s proprietary high-carbon cast iron, delivering exceptional cooling capacity, consistent pedal feedback, and fade-free performance under repeated heavy braking. Vehicle Fitment Compatible with:• BMW E90 M3 Sedan (2008–2011)• BMW E92 M3 Coupe (2008–2013)• BMW E93 M3 Convertible (2008–2013)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or carbon-ceramic conversions. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• CNC-machined from high-carbon cast iron for improved thermal stability and durability• Directional curved vanes maximize airflow and rotor cooling• Maintains factory brake bias, ABS, and DSC calibration• Precision-balanced for vibration-free braking performance• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair Girodisc D1-157 BMW E9X M3 Front Ring FAQs Do these fit the OEM M3 rotor hats? No. These are designed only for Girodisc aluminum hats and will not fit OEM one-piece rotors or carbon-ceramic conversions. What pad compounds are recommended for this setup? For street use, Ferodo DS2500 or Hawk HPS 5.0 pads work well. For track days, Pagid RS29 or Endless MX72 provide stable friction and fade resistance. What torque should be used for the floating hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. After the first track session, recheck hardware torque for consistency. Do these rotors improve braking feel? Yes. The two-piece floating design reduces unsprung weight and improves pedal modulation by managing heat transfer more efficiently than factory rotors. Upgrade your BMW E9X M3’s braking system with Girodisc D1-157 380mm front replacement rings — engineered for endurance, balance, and precision braking on both street and circuit.