Racing Brake Rotors

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.

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.

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.

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.

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.

D1-159 Girodisc McLaren 394mm Front Replacement Rings Renew your McLaren’s braking performance with Girodisc D1-159 394mm front replacement rings. These precision-engineered components bolt directly to your existing Girodisc aluminum hats using the supplied floating hardware kit. Each ring is machined from Girodisc’s proprietary high-carbon cast iron for superior thermal control, balanced response, and fade-free braking under extreme track conditions. Vehicle Fitment Compatible with:• McLaren 540C / 570S / 570GT / 600LT (Front)• McLaren 650S / 675LT (Front)• McLaren MP4-12C (Front)Note: Designed for Girodisc 394mm two-piece front rotor systems. Not compatible with OEM carbon-ceramic rotors or one-piece iron discs. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 394mm two-piece front rotors• CNC-machined from high-carbon cast iron for durability and high-temperature stability• Directional curved vanes accelerate airflow for maximum cooling efficiency• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced for smooth, vibration-free operation• Designed exclusively for Girodisc aluminum hats used in McLaren iron-conversion systems Specifications • Diameter: 394 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 D1-159 McLaren 394mm Front Replacement Ring FAQs Can I use these with McLaren’s OEM carbon-ceramic rotors? No. These are for Girodisc steel rotor conversions only and will not fit OEM ceramic brake hardware. What pad compounds are best suited for these rotors? For street/track mix, Pagid RS29 or Ferodo DS2500 pads are excellent. For full track duty, Pagid RSL1 or Endless ME20 are ideal high-temp options. Are these rotors directional? Yes. Each rotor is marked for left and right orientation to ensure the curved vanes channel airflow correctly through the disc for optimal cooling. What’s the service life of these rotors under track use? Typically 20–30 hours of hard circuit time depending on track layout, pad compound, and cooling efficiency. Street-driven cars often exceed 40,000 miles. Upgrade your McLaren’s braking precision with Girodisc D1-159 394mm front replacement rings — race-bred components engineered for stability, cooling, and performance at any speed.

Girodisc Ford Shelby GT350 Front Rings Maintain peak braking performance in your GT350 or GT350R with Girodisc D1-162 394mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Machined from Girodisc’s proprietary high-carbon cast iron, they deliver superior heat dissipation, reduced unsprung weight, and consistent braking power under the extreme temperatures of track use. Vehicle Fitment Compatible with:• Ford Mustang Shelby GT350 (2016–2020)• Ford Mustang Shelby GT350R (2016–2020)Note: Designed exclusively for Girodisc 394mm 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 394mm two-piece front rotors• CNC-machined from high-carbon cast iron for maximum strength and heat resistance• Directional curved vanes increase airflow and cooling• Maintains OEM brake bias and ABS calibration• Precision-balanced to eliminate vibration and ensure smooth braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 394 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 D1-162 Ford Shelby GT350 Front Replacement Ring FAQs Do these work with OEM GT350 hats? No. The Girodisc D1-162 rings are designed to bolt only to Girodisc aluminum hats. OEM one-piece or carbon-ceramic systems are not compatible. What pad compounds pair best with these rotors? For mixed street/track driving, Ferodo DS2500 or Hawk HPS 5.0 are excellent choices. For full track use, Girodisc recommends Pagid RSL 1 or Carbotech XP12 compounds. What torque should I use for the hardware bolts? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite, and recheck after the first full heat cycle. Are these rotors directional? Yes. Each rotor is marked for left and right use. Installing them correctly ensures proper airflow through the curved cooling vanes for maximum heat dissipation. Upgrade your GT350’s braking confidence with Girodisc D1-162 394mm front replacement rings — engineered for precision, strength, and endurance on street or circuit.

Girodisc 390x34mm Front Rings Service your performance braking system with Girodisc D1-163 390x34mm front replacement rings. These precision-machined components 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 alloy to ensure exceptional heat dissipation, consistent friction characteristics, and long-term reliability under heavy braking loads. Vehicle Fitment Compatible with:• Custom and motorsport applications using Girodisc 390x34mm two-piece front rotors• Commonly fitted to upgraded systems on Porsche, BMW, and Audi track platforms using large six-piston calipersNote: Designed exclusively for Girodisc 390x34mm two-piece front rotor systems. Verify hat bolt pattern and offset before installation. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 390x34mm two-piece front rotors• CNC-machined from high-carbon cast iron for optimal thermal stability• Directional curved vanes channel airflow for maximum cooling• Maintains proper brake bias and ABS calibration• Precision-balanced to prevent vibration or pulsation• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 390 mm• Thickness: 34 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 D1-163 Front Replacement Ring FAQs What cars typically use this 390x34mm rotor size? This ring size is common on large six-piston BBK setups from Brembo, AP Racing, and StopTech used on Porsche 991, BMW F8X, and Audi RS applications when fitted with Girodisc hats. Can these be installed on non-Girodisc hats? No. The mounting pattern and float hardware are specific to Girodisc aluminum hats. Using other hats may cause clearance or balance issues. What torque should I apply to the floating hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. Recheck after the first heat cycle to ensure hardware seating. How do I know when it’s time to replace the rings? Replace when rotor thickness reaches the minimum spec or if radial cracking extends beyond 70% of the face slot length — whichever occurs first. Girodisc D1-163 390x34mm front replacement rings deliver precision, durability, and race-proven performance for drivers demanding the highest level of stopping power and thermal control.

Girodisc Lamborghini Gallardo Super Trofeo Front Replacement Rings Maintain the world-class stopping power of your Gallardo Super Trofeo with Girodisc D1-168 380mm front replacement rings. Designed as direct replacements for the Girodisc two-piece racing rotor system, these rings bolt directly to your existing Girodisc aluminum hats using the supplied floating hardware kit. Precision-machined from high-carbon cast iron, they deliver consistent braking torque, improved thermal stability, and unmatched fade resistance through repeated high-G deceleration. Vehicle Fitment Compatible with:• Lamborghini Gallardo LP570-4 Super Trofeo (2009–2013)• Lamborghini Gallardo LP560-4 and LP550 models with Super Trofeo braking upgrades• Reiter Engineering Gallardo GT3 and GT3 FL2Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM carbon-ceramic or one-piece rotors. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• High-carbon cast-iron construction ensures stability and fade resistance at race temperatures• Directional curved vanes maximize airflow and cooling efficiency• Precision-machined and balanced in the USA• Maintains OEM brake bias and pedal feel• Designed exclusively for Girodisc aluminum hats used in Super Trofeo systems Specifications • Diameter: 380 mm• Thickness: 34 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 D1-168 Lamborghini Front Ring FAQs Can these rotors be used with OEM carbon-ceramic systems? No. The D1-168 rings are designed for Girodisc steel rotor conversions and will not fit OEM carbon-ceramic hardware. What pad compounds are recommended for track use? Pagid RS29, Ferodo DS3.12, or Endless ME20 are ideal for maintaining consistent friction under race conditions. Do these require any special bedding-in procedure? Yes. Use Girodisc’s recommended procedure — 8–10 moderate stops from 60 mph to evenly transfer pad material, followed by full cooldown before track use. What’s the expected service life for endurance racing? Under typical Super Trofeo race conditions, these rings can deliver 20–30 hours of track use before inspection or replacement, depending on pad aggressiveness and cooling setup. Refresh your Gallardo Super Trofeo’s braking confidence with Girodisc D1-168 380mm front replacement rings — engineered for durability, balance, and fade-free performance in the world’s most demanding racing environments.

D1-169 Girodisc Ford Focus RS Front Rings Revive the braking performance of your Focus RS with Girodisc D1-169 350mm front replacement rings. Designed as direct replacements for Girodisc two-piece rotors, these precision-machined rings bolt directly to your existing aluminum hats using the supplied floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon iron alloy, offering superior heat resistance, fade-free stopping power, and consistent pedal feel even during repeated hard braking. Vehicle Fitment Compatible with:• Ford Focus RS (MK3, 2016–2018)• Focus RS equipped with Brembo 4-piston front calipersNote: Designed exclusively for Girodisc 350mm 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 350mm two-piece front rotors• CNC-machined from high-carbon cast iron for maximum strength and heat control• Directional curved vanes promote efficient air cooling through the disc• Maintains OEM brake bias, ABS, and ESC performance• Precision-balanced for vibration-free braking• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 350 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 D1-169 Ford Focus RS Front Ring FAQs Do these fit the factory Focus RS rotors or hats? No. These are designed specifically for Girodisc aluminum hats and will not fit the OEM Brembo one-piece setup. What pad compounds pair best with these rotors? For mixed use, Ferodo DS2500 or Hawk HPS 5.0 pads work best. For track, use DS1.11 or Carbotech XP10 for optimal bite and temperature range. What torque should I use for the floating hardware bolts? Tighten to 12 ft-lbs (16 Nm) with blue Loctite. Recheck torque after the first heat cycle for best reliability. Are these rotors directional? Yes. Each rotor is marked for left or right use — follow the engraved rotation arrow to ensure correct vane airflow during installation. Upgrade your Focus RS braking system with Girodisc D1-169 350mm front replacement rings — engineered for balance, cooling, and repeatable high-performance stopping power.

D1-171 Girodisc Front Rotor Ring Replacement Kit REPLACEMENT ROTOR RINGS ONLY. INCLUDES NEW INSTALLATION HARDWARE. DOES NOT INCLUDE ALUMINUM HATS. Competition Motorsport is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most Girodisc products the same or next business day to ensure we meet your delivery deadline. These Girodisc replacement rotor rings are direct replacements for the iron discs on your Girodisc two-piece rotors, and no modifications are necessary. New cap screws and washers are included with these replacement rotors. We do not recommend re-using the old hardware. The replacement rotor rings 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 two-piece Girodisc design allows for rotor ring-only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

Girodisc Acura NSX Front Replacement Rings Bring your Acura NSX braking system back to peak performance with Girodisc 370mm front replacement rings. Designed as direct replacements for existing Girodisc two-piece rotor assemblies, these high-carbon iron rings deliver the heat control, balance, and precision stopping power the NSX platform demands. Vehicle Fitment Compatible with:• 2017–2022 Acura NSX (NC1)• 1991–2005 Acura NSX (with Girodisc or comparable 370mm big brake kit)Note: These are friction rings only. They attach directly to existing Girodisc aluminum hats using the supplied hardware kit. Engineered for Performance and Longevity Each Girodisc replacement ring is made from a proprietary high-carbon cast iron alloy, developed to handle the extreme heat and stress of performance driving. Precision-machined and balanced in the USA, these rings feature a curved vane internal design that acts as a centrifugal air pump, drawing air through the rotor to maintain consistent cooling under high-speed braking. Whether you’re on canyon roads or the track, Girodisc ensures consistent pedal feel and fade-free braking. Features • Direct replacement for 370mm Girodisc front rotor assemblies• Designed for Acura NSX (NC1) and earlier models with Girodisc big brake kits• High-carbon iron construction for thermal stability and durability• Curved directional vanes improve airflow and cooling• Machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair Specifications • Diameter: 370mm• Position: Front• Material: High-carbon cast iron• Includes: Two rotor rings and full hardware kit• Made in the USA• Sold/priced per pair Girodisc D1-174 Replacement Ring FAQs Are these compatible with OEM NSX rotors? No. These replacement rings are designed specifically for Girodisc two-piece rotor systems or equivalent aluminum-hat setups. Do they include hardware? Yes. Each pair ships with a complete hardware kit including floating pins, washers, and bolts. Will these work on both first- and second-generation NSX models? They fit directly on the second-gen NSX (NC1) and first-gen models equipped with Girodisc 370mm rotor systems or compatible hats. Are these suitable for track driving? Absolutely. Girodisc rotors are built for high-performance and endurance use, maintaining stable braking through repeated high-heat cycles. Restore the legendary stopping power of your NSX with Girodisc D1-174 370mm front replacement rings — precision-engineered, American-made, and built for uncompromising performance.

D1-179 Girodisc Audi Front Rings Restore peak braking precision in your Audi RS or S model with Girodisc D1-179 370x34mm front replacement rings. These precision-machined components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Constructed from high-carbon cast iron, they offer improved heat management, reduced unsprung weight, and fade-free performance during aggressive street or track use. Vehicle Fitment Compatible with:• Audi RS5 (B8/B8.5, 2013–2015)• Audi RS4 (B8, 2013–2015)• Audi S6 / S7 (C7, 2013–2018)• Audi A6 / A7 3.0T with Performance Brake PackageNote: Designed exclusively for Girodisc 370x34mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with full floating hardware kit• Direct replacements for Girodisc 370x34mm two-piece front rotors• Cast from proprietary high-carbon iron alloy for superior thermal stability• Directional curved vanes channel air for maximum cooling• Maintains OEM brake bias and ABS/ESC function• Dynamically balanced for smooth, vibration-free operation• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 370 mm• Thickness: 34 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 D1-179 Audi 370x34mm Front Ring FAQs Will these fit OEM Audi rotor hats? No. The D1-179 rings are specifically designed to mount to Girodisc aluminum hats only, not factory or carbon-ceramic hats. What pad compounds work best with these rotors? They perform excellently with Ferodo DS2500, Pagid RS29, and Hawk HP+ pads, depending on your driving style and heat demands. Do they require a specific bedding process? Yes. Perform 8–10 medium stops from 60–10 mph to evenly transfer pad material, then cool completely before heavy use. Are these rotors directional? Yes. Each rotor is marked for left and right sides — follow the arrow cast into the hat mounting area to ensure proper airflow and cooling direction. Upgrade your Audi’s braking system with Girodisc D1-179 370x34mm front replacement rings — precision-balanced for endurance, consistency, and maximum confidence on the road or at the track.

Girodisc Ferrari 458, 488 Challenge Front Replacement Rings Keep your Ferrari Challenge braking system at peak performance with Girodisc 380mm front replacement rings. These direct-fit iron rings are designed for high-performance racing applications, delivering consistent braking, superior heat management, and the precision feel Ferrari drivers demand on track. Vehicle Fitment Compatible with:• Ferrari 458 Challenge• Ferrari 488 Challenge• Ferrari 488 Challenge EvoNote: These are friction rings only. They attach directly to existing Girodisc aluminum hats using the included floating hardware kit. Race-Bred Performance and Quality Girodisc front replacement rings are engineered and machined in the USA from a proprietary high-carbon cast iron alloy, formulated for maximum thermal stability and durability. Each rotor uses a curved directional vane design to pull air through the disc during rotation, acting as a centrifugal pump to improve cooling and minimize fade under extreme race conditions. The result is predictable, fade-free braking through every corner — lap after lap. Features • Direct replacement for Girodisc 380mm front rotor assemblies• Designed for Ferrari 458, 488, and 488 Challenge Evo race cars• Proprietary high-carbon iron alloy for endurance-grade heat control• Curved directional vanes for maximum airflow and cooling• Machined and balanced in the USA• Includes complete hardware kit• Sold/priced per pair Specifications • Diameter: 380mm (approx.)• Position: Front• Material: High-carbon cast iron• Includes: Two replacement rings and new hardware• Made in the USA• Sold/priced per pair Girodisc D1-183 Replacement Ring FAQs Are these compatible with OEM carbon-ceramic rotors? No. These are for Girodisc two-piece iron assemblies only and will not fit OEM carbon-ceramic setups. Do I need new aluminum hats? No. These rings are designed to bolt directly to your existing Girodisc hats using the included hardware. Do these include new hardware? Yes. Each pair ships with a complete floating hardware kit, including pins, washers, and bolts. Can these handle extended track use? Absolutely. Girodisc replacement rings are endurance-proven for Ferrari Challenge applications, offering consistent thermal stability and long service life under repeated high loads. Renew your Ferrari Challenge braking system with Girodisc D1-183 380mm front replacement rings — precision-engineered in the USA for durability, cooling, and world-class performance.

D1-185 Girodisc Subaru WRX STI (2018+) Front Replacement Rings Bring your WRX STI’s braking system back to full strength with Girodisc D1-185 340 mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is CNC-machined from Girodisc’s proprietary high-carbon iron alloy for superior thermal control, consistent bite, and fade-resistant performance in street or track conditions. Vehicle Fitment Compatible with:• Subaru WRX STI (2018 and newer, Brembo 6-piston front calipers)Note: Designed for Girodisc 340 mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or earlier 4-piston STI setups. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 340 mm two-piece front rotors• High-carbon iron construction for stable performance at high temperatures• Directional curved vanes improve airflow and cooling efficiency• Maintains OEM brake bias and ABS calibration• Precision-balanced for quiet, vibration-free operation• 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 new hardware kit• Sold/priced per pair Girodisc D1-185 Subaru WRX STI (2018+) Front Replacement Ring FAQs Do these fit directly on the OEM Subaru rotor hats? No. The D1-185 rings are specific to Girodisc aluminum hats and will not fit factory one-piece rotors. What torque should I use for the drive-pin bolts? Girodisc recommends 12 ft-lbs (16 Nm) with blue Loctite applied to each fastener; safety-wire if desired for track use. Are these compatible with aftermarket pads like Ferodo DS2500 or Hawk DTC-60? Yes. These rings work with all STI-fit pad compounds and perform best after a proper bedding cycle. How long do these typically last under heavy track use? Track-driven STIs see roughly 25–35 hours of hard use per set; street cars often exceed 50,000 miles depending on pad material and driving style. Enhance your Subaru WRX STI with Girodisc D1-185 340 mm front replacement rings — precision-engineered for heat resistance, longevity, and confidence lap after lap.

Girodisc D1-186 Replacement Rotor Rings (Discs) Girodisc replacement rotor rings are direct replacements for the iron discs on your Girodisc A1-186 two-piece rotors, with no modifications necessary. New cap screws and washers are included with these replacement rotors. We do not recommend re-using the old hardware. (This kit is contains two cast-iron discs and associated hardware. No aluminum center hat.) The replacement rotor rings 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 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. Rotor ring-only replacement helps to minimize costs and deliver outstanding performance. Sold/priced per pair.