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A2-318 GiroDisc Cadillac CT4-V Blackwing Rear Rotors If you're pushing your CT4-V Blackwing like it was born for the Nürburgring (because it was), you already know your brakes take a beating. Enter the GiroDisc A2-318 Rear Rotors: the no-nonsense upgrade for serious drivers who want fade-free stops, lighter rotating mass, and the kind of confidence that makes late braking feel like a superpower. This is the track-day rear rotor setup your Cadillac deserves. Features: Two-Piece Floating Design: Reduces unsprung weight and improves heat dissipation — meaning better handling, quicker response, and less brake fade lap after lap. Direct Bolt-On Fit: These rotors are designed specifically for the CT4-V Blackwing, requiring no modifications or adapters. Install, bed in, and go drive like you mean it. High-Carbon Alloy Rings: Built from GiroDisc's proprietary high-carbon iron alloy to handle the intense heat generated under extreme braking conditions. Anodized Aluminum Hats: Lightweight yet durable hats machined from 6061-T6 aluminum and anodized to resist corrosion and wear. Slotted for Performance: Helps evacuate gas and debris from the pad surface to maintain consistent contact and bite — especially when you’re diving into high-speed corners. Technical Specifications: Part Number: A2-318 Fitment: 2022+ Cadillac CT4-V Blackwing (Rear Axle) Material: High-carbon alloy rotor rings with 6061-T6 billet aluminum hats Design: Slotted, two-piece floating rotor Weight Savings: Significantly lighter than OEM rear rotors, reducing unsprung and rotational mass FAQs: A2-318 GiroDisc Cadillac CT4-V Blackwing Rear Rotors Are these rotors compatible with the stock Brembo calipers? Yes, they’re a direct bolt-on for your factory calipers. No adapters or spacers needed. Do these rotors work well for daily driving too? Absolutely. While they’re built for performance, they’re totally street-friendly with no compromise on drivability or comfort. How do these compare to OEM Cadillac rotors? GiroDisc rotors offer better cooling, are lighter, and allow for more aggressive braking without fade — perfect for track days or aggressive street driving. Can I replace just the rotor rings later? Yes! That’s one of the best parts of the GiroDisc system — the hats are reusable, so when the rings wear out, just replace the friction ring and hardware. Ready to upgrade the rear brakes on your CT4-V Blackwing to something that can truly keep up? The GiroDisc A2-318 Rear Rotors are engineered to handle real heat, real laps, and real performance driving. Grab a set now and unleash the full braking potential of your Cadillac. 

A1-318 GiroDisc 2pc GiroDisc Cadillac CT4-V Blackwing Front Rotors If you’ve pushed your CT4-V Blackwing hard enough to earn the respect of your local track crew—or maybe the stink eye from your tire guy—then it’s time to upgrade your stopping power. The GiroDisc A1-318 2-piece front rotor set isn’t just another performance part; it’s a surgical tool for braking precision, tailored for one of Cadillac’s most track-ready sedans. Features That Deliver More Than Just a Shorter Stopping Distance: Two-Piece Floating Rotor Design: Reduces unsprung weight and improves handling feel without compromising strength. Lighter rotors mean quicker turn-in and less rotational mass to fight against under hard braking. High-Carbon Alloy Rotor Rings: Superior heat dissipation and resistance to cracking under repeated heat cycles—ideal for high-performance driving or track days where stock rotors just don’t cut it. Direct Bolt-On Fitment: No guesswork, no fabrication. These rotors are made to work with your stock calipers and fit your CT4-V Blackwing like a glove. Installation is a breeze, which means more time driving, less time wrenching. Rebuildable Design: When your rotor rings are worn down, you don’t toss the whole unit—just replace the rings. It’s better for your wallet and better for the planet. Technical Specifications: Application: 2022+ Cadillac CT4-V Blackwing (with optional Track Performance Package or factory iron rotors) Rotor Diameter: 14.96 in (380mm) Construction: 2-piece floating rotor, aluminum hat Material: High-carbon cast iron rotors, 6061-T6 aluminum hats Weight Savings: Approx. 4-6 lbs per rotor vs OEM Mounting: Direct bolt-on GiroDisc Cadillac CT4-V Blackwing 2pc Front Rotors FAQs Are these rotors a direct fit for my CT4-V Blackwing? Yes, they’re designed specifically for the factory brake setup. No modifications needed. Can I use these rotors for both daily driving and track days? Absolutely. These rotors shine on track but stay composed during daily stop-and-go driving. How do GiroDisc rotors compare to OEM or other aftermarket options? GiroDisc rotors are lighter, stronger, and rebuildable—offering real performance and long-term value that most OEM and many aftermarket options can’t match. What’s the expected lifespan of these rotors? Lifespan varies based on use, but the modular design allows you to replace just the rotor rings, extending overall service life significantly. Do I need special brake pads for these? While they work with most performance pads, GiroDisc recommends high-friction, track-capable compounds to get the most out of your setup. For drivers who take performance seriously, stopping isn’t just something you do — it’s something you master. With GiroDisc rotors under your CT4-V Blackwing, you’ll stop harder, later, and more consistently, lap after lap. Upgrade today and feel the difference where it matters most—under your right foot.

GiroDisc Magic Pads Girodisc's "Magic Pads" offer a solution to common issues with factory brake pads such as squeaking, excessive dust, and high costs. These pads produce less dust compared to typical factory and performance pads, reducing the need for frequent wheel cleaning. Moreover, they provide excellent initial bite, a feature often lacking in more affordable pads. However, what truly sets our pads apart is their ability to effectively address brake noise problems, earning them the reputation of being a "silver bullet" solution. Crafted from a semi-metallic composition, Magic Pads are gentle on both rotors and your budget. When transitioning between different pad compounds, we recommend replacing all pads in the car simultaneously. Each set of Magic Pads includes pre-installed anti-noise shields at no extra cost. Should you have any inquiries, feel free to reach out to us – we're here to assist you!

A2-148 Girodisc 2pc Rear Brake Rotors FITMENT (REAR): Mercedes GTS Mercedes S63 is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country.  We ship most Girodisc systems the same or next business day to ensure we meet your delivery deadline. No modifications are necessary, the Girodisc rotors will bolt directly to your Mercedes Benz and work with the original calipers without issue.  The central hat section of the disc is made from 6061-T6 aircraft specification aluminum.  The disc is made from cast iron to the same specification and material as used by professional racing organizations. It is a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.Once the Girodisc system is in place, simply replace the cast iron rotor when needed. When used with Pagid pads and high-temp racing brake fluid, you have a truly amazing, race-proven solution for your Mercedes Benz. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

A1-053 Girodisc 2pc Front Brake Rotors This kit will not fit the Audi A6, RS6, or Allroad with the 4.2L V8 engine. FITS THE FOLLOWING CARS: Audi S4 (B5) and Audi A6/Allroad (C5) with Alcon or Stoptech 355x32mm big brake kit Audi S4 (B5) and Audi A6/Allroad (C5) with the 2.7L twin-turbo engine is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most products the same or next business day to ensure we meet your delivery deadline. This Girodisc system upgrades the OEM brakes to a two-piece steel disc and aluminum hat. This two-piece floating rotor design will bolt directly to your Audi front and work flawlessly with the OEM calipers. Upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response. Combined with Pagid or PFC performance brake pads and RF-1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped rotors that result from high-performance driving. The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc. The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors. This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs. Sold/priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

A2-155 Girodisc 2pc Rear Brake Rotors (OEM Steel) These Rotors Fit The Following Cars (w/ OEM Steel Rotors): Porsche 981 Cayman GT4 Rear Porsche 718 Cayman GT4 Rear Porsche 991 Turbo/Turbo S Rear This Girodisc system upgrades your Porsche OEM rear brakes to 380mm two-piece steel discs and aluminum hats. This two-piece floating rotor design will bolt directly to your Porsche GT4 or Turbo and work flawlessly with the OEM calipers using the included machined aluminum spacers. Especially when paired with the Girodisc A1-066 front Porsche rotors , upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response. Combined with Pagid or PFC racing brake pads and Performance RF1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked OEM Porsche rotors that result from high-performance driving. The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc. The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors.This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs. Sold/priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

D1-032 GiroDisc Replacement Rotors REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. 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. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

A1-031 Girodisc 2pc Front Brake Rotors (340mm) FITS PORSCHE: 986 Boxster S (front) 987 Boxster S/Cayman S (front) 996 Carrera 2/Carrera 4(front) 997.1 Carrera 2/Carrera 4(front) is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most products the same or next business day to ensure we meet your delivery deadline. This Girodisc system upgrades the 317mm OEM one-piece front rotors to 340mm two-piece steel discs and aluminum hats. Caliper spacers are included to accommodate the larger rotors. This two-piece "floating rotor" design will bolt directly to your Porsche front and work flawlessly with the OEM calipers. Upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response. Combined with Pagid or PFC performance brake pads and RF-1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped rotors that result from high-performance driving. The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc. The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors. This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs. Sold/priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

A2-035 Girodisc 2pc REAR Brake Rotors (325mm) The Girodisc system is an upgrade to a 325mm two-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake disc. The two-piece floating disc will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight high-performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc rotors are lighter than OEM pieces. The reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. When used with Girodisc Magic Pads on the street, Pagid or PFC racing pads on track, and RF1 brake fluid (all available from ), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron which is constructed in the USA and is made to the same specification with the same material used by professional racing organizations. The rotors curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. 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 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 two-piece Girodisc design allows for rotor only replacement as well to minimize future replacement costs. Sold/Priced per pair Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

D2-031 Girodisc Rear Replacement Rotor Rings (325mm) Replacement Rotor Rings Only -- No Center Hat 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 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. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

A1-032 Girodisc 2pc Front Brake Rotors (350mm) Commonly also used in the 718 GTS 4.0 Non-PCCB. is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most products the same or next business day to ensure we meet your delivery deadline. This Girodisc system upgrades the OEM brakes to a two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your car and work flawlessly with the OEM calipers. Upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response. Combined with Pagid or PFC performance brake pads and RF-1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped rotors that result from high-performance driving. The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc. The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors. This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs. Sold/priced per pair.

A2-031 Girodisc 2pc Rear Brake Rotors (325mm) The Girodisc system is an upgrade to a 325mm 2-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake disc. The 2-piece floating disc will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight high-performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc rotors are lighter than OEM pieces. The reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. When used with Pagid or PFC racing brake pads and Performance RF-1 racing brake fluid, you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron which is constructed in the USA and is made to the same specification with the same material used by professional racing organizations. The rotors curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. 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 as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

A1-066 Girodisc 2pc Front Brake Rotors (OEM Steel) FITS THE FOLLOWING CARS (OEM Steel Rotors): Porsche 981 Cayman GT4 Porsche 718 Cayman GT4 Porsche 991 Turbo/Turbo S Porsche 997 Turbo This Girodisc system upgrades the OEM front brakes to a 380mm two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your GT4 front and work flawlessly with the OEM calipers. Particularly when paired with the Girodisc A2-155 rear rotors, upgrading your brakes to lightweight, high-performance Girodisc rotors maintains the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response.Combined with Pagid or PFC racing brake pads and RF1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped OEM Porsche rotors that result from high-performance driving. The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc.The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors. This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs. Sold/priced per pair.

ROTOR RINGS ONLY (NO HATS) Need new rings for your Girodisc A2-032 rear rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly. Price is for a pair of rings and 2 hardware kits. Additional hardware kits are available separately upon request.

A1-146 Girodisc 2pc Front Brake Rotors FITMENT: Porsche 991 GT3/GT3RS/GT2RS, Front (2014+) with steel brakes The Girodisc system is a direct replacement for the OEM front rotors on the Porsche 991 GT3, GT3RS, and GT2RS with OEM iron rotors. No modifications are necessary, including full use of factory unmodified pads unlike most aftermarket solutions for this application. The GIrodisc rotors will bolt directly to your car and work with OEM calipers perfectly. By upgrading your brakes with lightweight, high performance replacements -- as opposed to a big brake kit -- your factory brake bias and ABS efficiency are preserved. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron constructed in the USA, made to the same specification with the same material used by professional racing organizations. The rotors' curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system which utilizes ten 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 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 two-piece Girodisc design allows for disc-only replacement as well, minimizing future replacement costs and delivering outstanding performance. Sold/priced per pair.

A1-157 Girodisc 2pc Front Brake Rotors for BMW E9X M3 Fitment: BMW E9x M3 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 system is an upgrade to a two-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake rotors. These two-piece floating rotors will bolt directly to the car and work with your OEM calipers perfectly. By upgrading your brakes with these lightweight, high-performance replacements (as opposed to a big brake kit), your factory brake bias is maintained, along with your ABS efficiency. Girodisc two-piece floating rotors are lighter than OEM brake rotors. This reduction in rotational mass and unsprung weight allows for quicker acceleration, sharper steering, and faster suspension response. When used with Pagid or PFC performance brake pads, and RF-1 brake fluid (available from ), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron constructed in the USA, made to the same specification with the same material used by professional racing organizations. The rotors' curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system which utilizes ten 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 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 two-piece Girodisc design allows for disc-only replacement as well, minimizing future replacement costs and delivering outstanding performance. Sold/priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.