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

FITS: BREMBO / STOPTECH 332x32mm BIG BRAKE KITS 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 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 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 GD355.32.52 355x32mm Replacement Rotor Rings (D52) The Girodisc GD355.32.52 Replacement Rotor Rings (D52) are precision-built replacements for Girodisc two-piece rotor systems using the D52 configuration. Sized at 355mm x 32mm, these genuine Girodisc rings restore full braking performance while allowing you to reuse your existing aluminum hats and floating hardware, saving time and cost without compromising quality. Precision Engineering for Long-Term Performance Each Girodisc replacement ring is manufactured in-house in the USA from Girodisc’s proprietary cast iron alloy, designed to handle the extreme heat and stress of high-performance driving. The curved vane internal design acts as a centrifugal air pump, increasing airflow through the rotor to reduce operating temperatures and prevent fade. These rings are machined to exact tolerances and include a new hardware kit for a complete, bolt-on installation. Features • Dimensions: 355mm x 32mm (D52 configuration)• Direct replacement for Girodisc two-piece D52 systems• Reuses existing Girodisc aluminum hats• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for efficient cooling• Includes new hardware for installation• Directional vanes for left and right rotors• Sold/priced per pair Vehicle Fitment The Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) fit Girodisc D52-based two-piece systems used on:• Porsche Cayman / Boxster (Girodisc 355mm D52 kits)• BMW M2 / M3 / M4 (Girodisc 355mm D52 front or rear systems)• Audi S4 / S5 (Girodisc 355mm D52 setups)• Subaru WRX STI with Girodisc D52 355mm conversion• Other high-performance applications using Girodisc D52 hat patternAlways verify your hat pattern and rotor dimensions match the D52 specification before ordering. Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) FAQs What’s included in the kit? Two iron rotor rings (left and right) and a full set of new mounting hardware for reassembly. Do I reuse my aluminum hats? Yes. These rings are designed to bolt directly to your existing Girodisc hats using the included hardware kit. Are they compatible with OEM or other brands? No. Girodisc rings are engineered specifically for Girodisc aluminum hats and hardware. Are the rotors directional? Yes. Each rotor features curved vane geometry for left and right installation, ensuring optimal airflow and cooling. What material are they made from? Girodisc’s proprietary cast iron alloy provides high strength, excellent thermal stability, and consistent friction under extreme conditions. Are they sold as a set? Yes. The Girodisc GD355.32.52 355x32mm Replacement Rotor Rings (D52) are sold and priced per pair, including all required hardware. Restore factory-level braking performance and reliability with Girodisc GD355.32.52 Replacement Rotor Rings (D52)—precision-engineered in the USA for unmatched quality, cooling, and endurance.

Girodisc GD355.32.62 355x32mm Replacement Rotor Rings (Wide Annulus) The Girodisc GD355.32.62 Replacement Rotor Rings (Wide Annulus) are precision-engineered to replace worn iron rings on Girodisc two-piece brake systems using the D62 hat configuration. These 355x32mm rings are crafted for performance vehicles utilizing Brembo big brake kits that require a wide annulus pad contact area. Restore Performance with Genuine Girodisc Components Manufactured in the USA from Girodisc’s proprietary cast iron alloy, these rings are engineered for maximum strength, heat resistance, and consistent friction. The wide annulus design provides a larger pad contact area for improved wear balance and braking stability. Each rotor features directional curved vanes that act as a centrifugal pump, pulling cool air through the disc to minimize fade and maintain optimal performance under track conditions. Features • Dimensions: 355mm x 32mm (D62 Wide Annulus)• Direct replacement rings for Girodisc two-piece D62 systems• Designed for use with wide annulus Brembo calipers and pads• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for maximum cooling• Reuses Girodisc aluminum hats• Includes new hardware for installation• Sold/priced per pair Vehicle Fitment The Girodisc GD355.32.62 355x32mm Replacement Rotor Rings (Wide Annulus) fit Girodisc D62-based systems commonly used on:• Brembo 4-piston and 6-piston big brake kits (355mm applications)• Porsche Cayman / Boxster (Brembo GT 355mm systems)• Subaru WRX STI (Brembo GT wide annulus 355mm setup)• Mitsubishi Evo X with Brembo 355mm upgrade• BMW M2 / M3 / M4 with Brembo 355mm GT kitsAlways verify your hat bolt pattern and pad annulus match the D62 configuration before ordering. Girodisc GD355.32.62 355x32mm Replacement Rotor Rings (Wide Annulus) FAQs What does “wide annulus” mean? It refers to the pad contact area width on the rotor. Wide annulus rotors are designed for Brembo GT calipers using pads with a broader friction face. Can I reuse my aluminum hats? Yes. These replacement rings are designed to bolt directly to Girodisc aluminum hats using the included hardware. Do these include hardware? Yes. Each kit includes a complete set of new bolts, washers, and drive pins for proper installation. Are the rings directional? Yes. Each rotor features left and right curved vane geometry for optimal cooling and airflow direction. Do they fit OEM or other aftermarket hats? No. Girodisc replacement rings are specifically machined for Girodisc D62 aluminum hats and are not compatible with other brands. Are they sold as a pair? Yes. The Girodisc GD355.32.62 355x32mm Replacement Rotor Rings (Wide Annulus) are sold and priced per pair and include a complete hardware kit. Keep your braking system at peak performance with Girodisc GD355.32.62 355x32mm Replacement Rotor Rings (Wide Annulus)—the perfect OEM-quality solution for maintaining the precision, cooling, and durability your Girodisc system was designed for.

380x28mm Replacement Rotor Rings (D54) Refresh your Girodisc braking system with the GD380.28.54 Replacement Rings, designed for the D54 380x28mm two-piece rotor assemblies. When your existing Girodisc rotors reach their wear limit, these precision-engineered replacement rings restore braking performance, cooling efficiency, and stopping confidence—without the need to replace your aluminum hats. Each ring is precision-machined in the USA from Girodisc’s proprietary high-carbon cast iron alloy, delivering exceptional thermal stability, strength, and fade resistance under the most demanding driving conditions. Whether on the street or at the track, these 380x28mm rings keep your braking consistent, smooth, and powerful lap after lap. Features and Benefits Direct replacements for Girodisc D54 380x28mm two-piece rotors Machined from proprietary U.S.-poured high-carbon cast iron for superior durability 48 curved directional vanes maximize airflow and cooling capacity Lightweight two-piece design reduces unsprung mass and improves suspension response Includes all new drive pins, bolts, and washers for installation Fully machined, balanced, and assembled in the USA Compatibility Designed exclusively for Girodisc D54 380x28mm rotor assemblies. These rings are only compatible with Girodisc aluminum hats and are not designed for use with OEM or other aftermarket two-piece rotor systems. Why Choose Girodisc Girodisc is trusted worldwide for precision-engineered braking components that excel under heat and stress. The GD380.28.54 replacement rings embody the brand’s motorsport heritage, ensuring consistent pedal feel, superior cooling, and long-lasting performance. Replacing just the rings instead of the entire rotor system saves cost while preserving the exceptional quality of your Girodisc setup. FAQs Do these include the aluminum hats?No. The GD380.28.54 kit includes only the iron rotor rings and a complete hardware kit. Your existing Girodisc hats are reused. Are these compatible with OEM rotors?No. Girodisc replacement rings are designed solely for Girodisc two-piece rotors and will not fit OEM or other aftermarket assemblies. Are they directional?Yes. Each ring features curved internal vanes that must be installed on the correct side for proper cooling and airflow. What’s included?A pair of 380x28mm rotor rings (left and right) and a full hardware kit including drive pins, bolts, and washers. Ready to Refresh? Bring your Girodisc system back to full braking performance with the GD380.28.54 380x28mm Replacement Rings. Designed for high-performance street and track use, they deliver the strength, balance, and cooling efficiency that define Girodisc. Order your set today from Competition Motorsport and keep your braking power at its absolute best.

Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52) The Girodisc GD380.32.52 Replacement Rotor Rings (D52) are designed as direct replacements for worn rotor rings in your existing Girodisc two-piece brake system. Manufactured in-house to the same exacting standards as all Girodisc components, these 380x32mm rings restore your braking performance while allowing you to reuse your original aluminum hats and hardware. Restore Peak Braking Performance Each Girodisc replacement ring is cast from Girodisc’s proprietary iron alloy in the USA and precision machined to exacting tolerances. The curved vane internal design functions as a centrifugal air pump, improving airflow and heat dissipation to keep temperatures consistent lap after lap. These replacement rings include new hardware and are ready to bolt directly onto your existing Girodisc hats. Features • Size: 380mm x 32mm (D52)• Direct replacement rotor rings for Girodisc two-piece systems• Compatible with Girodisc aluminum hats using D52 pattern• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for maximum cooling efficiency• Includes new hardware kit for installation• Reuses existing aluminum hats• Sold/priced per pair Vehicle Fitment The Girodisc GD380.32.52 Replacement Rotor Rings (D52) fit multiple Girodisc brake systems used on high-performance vehicles, including:• Porsche 997.2 Turbo / Turbo S• Porsche 991 Carrera / Carrera S (with Girodisc 380mm upgrade kit)• Audi R8 V8 / V10 (with Girodisc 380mm rear kit)• McLaren 540C / 570S / 570GT (with Girodisc D52-based systems)• BMW F8X M2 / M3 / M4 (with Girodisc 380mm retrofit kits)Always confirm your hat pattern and bolt circle match the D52 specification before ordering. Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52) FAQs What is included with these replacement rings? The kit includes two 380x32mm iron rotor rings (left and right) along with all new hardware for installation. Can I reuse my existing aluminum hats? Yes. These replacement rings are designed to bolt directly to your Girodisc aluminum hats using the provided hardware. Are the rings directional? Yes. Each rotor has directional curved vanes—ensure left and right sides are installed correctly for proper cooling airflow. What materials are used? The rings are made from Girodisc’s proprietary cast iron alloy, known for high heat capacity, durability, and consistent friction performance. Do these fit OEM or other aftermarket hats? No. Girodisc replacement rings are engineered specifically for Girodisc hats and may not fit other brands’ hardware or bolt patterns. Are they sold individually or as a set? The Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52) are sold and priced per pair, including all required installation hardware. Maintain peak braking performance with genuine Girodisc GD380.32.52 Replacement Rotor Rings (D52)—crafted in the USA for reliability, strength, and precision fitment.

Girodisc 380x35mm Replacement Rotor Rings (D52) Need new rings for your Brembo or StopTech big brake kit? Girodisc has you covered. These 380x35mm replacement rings are 100% plug-and-play with your existing aluminum hats, offering a perfect fit and race-proven performance. Each set includes new floating pin hardware for a complete refresh of your braking system. Vehicle Fitment These Girodisc 380x35mm replacement rings fit a variety of big brake kits using 380x35mm rotors, including systems from Brembo, StopTech, and other performance brands. Verify your original rotor size and hat configuration before ordering to ensure compatibility.Note: These are replacement friction rings only and must be installed on existing Girodisc or compatible aluminum hats using the included hardware. Precision Engineering, Made in the USA The rotor rings are machined from Girodisc’s proprietary high-carbon cast iron, poured and finished in-house in the USA. Each rotor utilizes 72 curved directional vanes, engineered to act as a centrifugal air pump that pulls cooling air through the disc to lower operating temperatures and prevent fade during extreme braking. Whether on the street or at the track, Girodisc ensures consistent braking, superior pedal feel, and unmatched thermal control. Features • Direct-fit replacement for 380x35mm Girodisc, Brembo, and StopTech applications• Includes two new floating hardware kits• 72 curved vanes for maximum cooling efficiency• Proprietary high-carbon iron for strength and crack resistance• Machined, balanced, and finished in the USA• Bolt-on installation with existing hats• Sold/priced per pair Specifications • Diameter: 380mm• Thickness: 35mm• Vane Count: 72 curved directional• Position: Front or rear, depending on application• Includes: Two rotor rings and two complete hardware kits• Made in the USA• Sold/priced per pair Girodisc GD380.35.52 Replacement Ring FAQs Will these fit my Brembo or StopTech big brake kit? Yes — these are a direct bolt-on for systems using 380x35mm rotors and compatible aluminum hats. Do the rings come with new hardware? Yes. Each pair includes two complete hardware kits with new floating pins, bolts, and washers. Do I need to buy new hats? Not unless your existing hats are damaged. Girodisc rings are designed for re-use with your current hats to save cost and installation time. Can these be used for track driving? Absolutely. Girodisc’s 72-vane cooling design and proprietary iron alloy make these ideal for high-heat track conditions and extended endurance use. Rebuild your Brembo or StopTech big brake kit with confidence using Girodisc GD380.35.52 380x35mm replacement rings — precision-built, track-tested, and proudly made in the USA.

Competition Motorsport RPM-Logo T-Shirt For a limited time (while supplies last), get the Competition Motorsport "RPM" logo T-shirt FREE! Choose your T-shirt size and add it to your shopping cart with at least $99 worth of other gear and – voila! – the shirt is yours at no charge. For road racing fanatics, this sleek and modern Competition Motorsport T-Shirt by Next Level Apparel is a must-have. Made from a premium 60/40 cotton/poly blend, it balances all-day comfort with track-day durability. Featuring the iconic CMS RPM logo on the chest, it’s built for those who live life in the fast lane, whether you’re in the paddock or pit lane—or just grabbing coffee between track sessions. Fly The Competition Motorsport Flag Wherever You Go CMS T-Shirt Features: 60/40 cotton/polyester blend delivers comfort with wrinkle resistance Tailored fit with classic crew neck — track-day ready or casually clean-cut Available exclusively in Black to match your motorsport mindset Competition Motorsport "RPM" logo printed on the front Perfect for race weekends, cars & coffee, or hanging in the paddock Sizes from S through 2XL to fit every driver and enthusiast Competition Motorsport T-Shirt FAQs: What material is used in the CMS Logo T-Shirt? It’s crafted from a high-quality 60% cotton and 40% polyester blend that stays comfortable lap after lap. Does this shirt shrink in the wash? The cotton/poly blend helps resist shrinking and keeps its fit after multiple washes. Is the fit more athletic or relaxed? This shirt has a tailored, modern fit—not baggy, but not skin-tight. Order a size up if you prefer a looser fit. Can I wear this shirt at the track? Absolutely—it's made for trackside hangs, race-day pride, or wrenching on your car in the garage. Whether you're heading to an HPDE, prepping for autocross, or repping CMS at your favorite car show, this is the shirt that puts your passion in gear. Grab yours before they’re gone.

GiroDisc 1417 Rear Racing Brake Pads  GP30-1417.16 Brake Pads Designed to deliver race-level performance on the street, these pads blend aggressive stopping power with rotor preservation, making them an ideal choice for motorsport enthusiasts who demand reliability and precision. The GiroDisc GP30 Endurance Race Pads feature a premium compound optimized for the unique demands of automotive racing and spirited street driving. Their advanced formulation guarantees a firm, predictable bite that enhances braking confidence during high-speed track sessions or aggressive daily driving. These pads are designed to maintain their grip under intense conditions without excessive fade or rotor wear. GP35-1417.16 Brake Pads Our GP35 compound combines the best of both worlds into one all-around race pad. We took some of the longevity of our endurance pads, some of the bite of our sprint pads, and worked to develop a compound that can do it all. As a bonus, it’s easy to bed, which means less time figuring your brakes out, and more time driving on the track. The GP35 is designed to work with street car ABS as well as motorsport-grade ABS found in factory-built race cars. The torque curve is designed to be smooth and linear, which leads to superior modulation and release under trail braking. These pads work with a wide range of tires, from DOT street tires to R-compounds to full race slicks. It has become our most popular compound and is the compound we recommend most frequently to track day drivers and shops running cars in professional racing series. GP40-1417.16 Brake Pads GP40 compound falls between a sprint and an endurance compound. It maintains good bite and pedal feel while being friendly to your rotors. They are a favorite among our track day customers and shares a lineage with compounds found on cars competing in legendary races like the 24 Hours of Le Mans. These pads have been race-tested and hold up to the brutal conditions on the track. GiroDisc 1417 FITMENT GUIDE: Make Model Build (Year) Front Rear Porsche 991 3.4 Carrera [ceramic brake caliper with RBD cast iron disc ] 11 -19 X Porsche 991 3.4 Carrera [ceramic brakes] 11 - 15 X Porsche 991 3.8 Carrera S [ceramic brake caliper with RBD cast iron disc] 11 -19 X Porsche 991 3.8 Carrera S [ceramic brakes] 11 - 15 X Porsche 991 3.8 Carrera S / GTS [iron brakes] 11 - 15 X Porsche 991.2 3.0 Carrera [ceramic brakes] 15 - 19 X Porsche 991.2 3.0 Carrera S [ceramic brakes] 15 - 19 X Porsche 991.2 3.0 Carrera S [iron brakes] 15 - 19 X Porsche 991.2 3.0 Carrera GTS [iron brakes] 17 - 19 X Porsche 992 3.0 Carrera [iron brakes] 20 -  X Porsche 992 3.0 Carrera S [iron brakes] 20 -  X Porsche 992 3.0 Carrera 4S [iron brakes] 20 -  X

Girodisc 1740 Brake Pads The Girodisc 1740 provides improved bite, smooth modulation, and consistent braking for Porsche drivers who want enhanced performance without excessive dust or noise. Ideal for spirited road use, these pads offer excellent cold bite and stable friction while remaining quiet and easy to control. They are a direct-fit option for Girodisc 2-piece rear rotor systems. Fits the Following Vehicles: Make Model Build (Year) Front Rear Porsche 918 Spyder 13 - 15 X Porsche 991 GT3 [ceramic brakes] 15 - 18 X Porsche 991 GT3 [iron brakes] 15 - 18 X Porsche 991 GT3 RS [ceramic brakes] 15 - 18 X Porsche 991 GT3 RS [iron brakes] 15 - 18 X Porsche 991 Turbo [ceramic brakes] 13 - X Porsche 991 Turbo [iron brakes] 13 - X Porsche 991 Turbo S [ceramic brakes] 13 - X Porsche 991 Turbo S [iron brakes] 13 - X Porsche 991.2 GT2 RS [ceramic brakes] 18 - X Porsche 991.2 GT3 [ceramic brakes] 18 - X Porsche 991.2 GT3 [iron brakes] 18 - X Porsche 991.2 GT3 RS [ceramic brakes] 18 - X Porsche 991.2 GT3 RS [iron brakes] 18 - X Porsche 991 R [ceramic brakes] 16 - X Porsche 991 911 Speedster [iron brakes] 19 - X Porsche 992 3.0 Carrera 4S [ceramic brakes] 18- X Porsche 718 Cayman GT4 4.0 [982] [cast iron brakes] 19 - X Porsche 718 Cayman GT4 4.0 [982] [ceramic brakes] 19 - X Porsche Cayman GT4 [981] 16 - X Porsche Cayman GT4 [981] [ceramic brakes] 16 - X Porsche 992 Turbo [iron brakes] 2020 - X Porsche 992 GT3 [iron brakes] 2021 - X Porsche 992 Carrera S [ceramic brakes] 2018 - X Porsche 992 GT3 [ceramic brakes] 2021 - X Porsche 992 Turbo [ceramic brakes] 20 - X Porsche 718 Cayman GT4 4.0 RS [982] [cast iron brakes] 21 - X Porsche 718 Cayman GT4 4.0 RS [982] [ceramic brakes] 21 - X Note: Designed specifically for Girodisc rear two-piece steel rotors, not PCCB systems. GiroDisc GP10 Compound refined for the street but built to perform Designed for performance-minded drivers, the GP10 semi-metallic brake pads strike the perfect balance between daily drivability and occasional track use. Optimized for street conditions, they offer a quiet, lower-dust experience without sacrificing the confident stopping power you need when the pace picks up. Whether you're navigating traffic or hitting the occasional track day, these pads deliver a responsive pedal feel, excellent heat resistance, and consistent braking performance. Built for longevity and reliability, they’re the ideal upgrade for enthusiasts who want everyday comfort with the capability to push harder when it counts. For drivers planning extensive track sessions or more aggressive track driving, we recommend considering our dedicated race pads, engineered to handle the extreme heat and demands of frequent high-performance track use. GiroDisc GP30 Compound - endurance race pad Our GP30 compound is an all-around endurance race pad. The GP30 is designed to work with street car ABS as well as motorsport-grade ABS found in factory-built race cars. These pads work with a wide range of tires, from DOT street tires to R-compounds to full race slicks. GiroDisc GP35 Compound - A race pad for all occasions Our GP35 compound combines the best of both worlds into one all-around race pad. We took some of the longevity of our endurance pads, some of the bite of our sprint pads, and worked to develop a compound that can do it all. As a bonus, it’s easy to bed, which means less time figuring your brakes out, and more time driving on the track. The GP35 is designed to work with street car ABS as well as motorsport-grade ABS found in factory-built race cars. The torque curve is designed to be smooth and linear, which leads to superior modulation and release under trail braking. These pads work with a wide range of tires, from DOT street tires to R-compounds to full race slicks. It has become our most popular compound and is the compound we recommend most frequently to track day drivers and shops running cars in professional racing series. Note: this compound is only compatible with iron rotors. GiroDisc 1740 Features • High-performance street-focused compound• Low dust and reduced noise levels• Strong cold bite for daily street use• Smooth, predictable pedal modulation• Stable friction across a broad temperature range• Direct-fit for Girodisc rear brake systems• Sold/priced per rear axle set GiroDisc 1740 Specifications • Compound: GP10 Street Performance• Position: Rear• Compatibility: Girodisc steel rotors• Operating Range: Optimized for street temperatures• Includes: One complete set of rear brake pads Girodisc 1740.18 Rear Pad FAQs Are these pads quiet enough for daily use? Yes. The GP10 compound is engineered to minimize noise and vibration while delivering excellent braking feel. Can these pads be used with OEM Porsche rotors? While they may physically fit, they are optimized for performance and wear when paired with Girodisc two-piece rotors. Are these suitable for track days? They can handle light HPDE use, but for full track sessions a more aggressive compound like Girodisc GP30 or the best selling GP35 are recommended. Do these pads create less dust than OEM pads? Yes. GP10 pads produce noticeably less dust, helping keep your wheels cleaner. How do these compare to factory Porsche performance pads? GP10 pads offer smoother modulation, better cold bite, and significantly reduced dust, making them ideal for spirited street driving. Enhance your Porsche's rear braking confidence with Girodisc GP10 Street Pads GP10-1740.18 — engineered for clean, quiet, and consistent performance.

Girodisc Front Brake Pads 1741 Fits the Following Vehicles: Make Model Years Front Rear Porsche 991 Carrera / Carrera S / Carrera 4 / Carrera 4S 2012–2016 X Porsche 991.2 Carrera / Carrera S / GTS 2017–2019 X Porsche 992 Carrera / Carrera S / GTS 2020–Present X Porsche 718 Cayman GT4 2020–Present X Girodisc GP-Series Brake Pad Overview The Girodisc GP-Series brake pads in the 1741 shape deliver high-performance braking for Porsche 991, 992, and 718 GT4 applications. Engineered for consistent torque, stable friction, and excellent pedal feel, these pads are available in three compound options to match your driving style—from daily street use to full-time track duty. All three compounds fit the same front calipers and rotor setup, making it easy to select the level of performance you need. GP10 Street Compound  Designed for spirited daily driving, the GP10 compound offers fast cold bite, low noise, and low dust while maintaining stable performance during aggressive street use. GiroDisc GP30 - Endurance Race Compound  Built for long stints, the GP30 delivers consistent friction over extended sessions with reduced wear and excellent rotor friendliness—ideal for endurance racing or heavy track use. GiroDisc GP35  - Race Pad for All Occasions Our GP35 compound combines the best of both worlds into one all-around race pad. We took some of the longevity of our endurance pads, some of the bite of our sprint pads, and worked to develop a compound that can do it all. As a bonus, it’s easy to bed, which means less time figuring your brakes out, and more time driving on the track. The GP35 is designed to work with street car ABS as well as motorsport-grade ABS found in factory-built race cars. The torque curve is designed to be smooth and linear, which leads to superior modulation and release under trail braking. These pads work with a wide range of tires, from DOT street tires to R-compounds to full race slicks. It has become our most popular compound and is the compound we recommend most frequently to track day drivers and shops running cars in professional racing series. Note: this compound is only compatible with iron rotors. Girodisc GP-Series Pad FAQs Which compound is best for everyday street driving? GP10 is the recommended choice for daily use thanks to low dust, quiet operation, and reliable cold bite. Are the GP30 or GP35 compounds okay to use on the street? They can be used, but both are optimized for track temperatures and may produce more noise and dust when cold. Do these pads fit the factory Porsche iron rotors? Yes, all GP-Series 1741 pads are fully compatible with OEM iron rotors as well as Girodisc two-piece steel rotors. Do these pads require a bedding procedure? Yes, proper bedding is necessary to establish an even transfer layer and achieve maximum performance. Are the pad shapes the same across GP10, GP40, and GP30? Yes — all three compounds use the exact same 1741 pad shape and fit the same vehicles.

Girodisc Porsche 986/987/996/997.1 Front Rotors The Girodisc system is a direct replacement for the OE disc with the addition of the included caliper spacers and longer bolts. This upgrade increases the rotor diameter from 317mm to 340mm, improving braking force, cooling capacity, and pedal feel. It’s a true bolt-on upgrade that retains your factory calipers and ABS function while reducing unsprung and rotational mass for quicker suspension response and acceleration. Lightweight, High-Performance 2-Piece Rotors The central hat section is machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the rotor rings are Girodisc’s proprietary high-carbon cast iron. Each component is made in the USA and machined in-house for precision fitment and consistency. The rotors feature a curved vane design that acts as a centrifugal pump, drawing cooling air through the disc during use for superior heat management on both street and track. Girodisc A1-031 Features Upgrades OE 317mm discs to 340mm for greater thermal capacity and stopping power Floating mount system with 10 cadmium-plated steel drive pins for controlled float and quiet operation Reduces unsprung and rotational mass for sharper handling Fully serviceable—replace just the rotor rings when worn Includes caliper spacers and longer bolts for proper fitment Designed, cast, and machined in the USA Vehicle Fitment Works with factory calipers—no permanent modifications required. Includes caliper spacers and longer bolts. Porsche 986 Boxster S (2000–2004, all non-Big-Red applications) Porsche 987 Boxster / Cayman (2005–2012, non-S) Porsche 996 Carrera (1999–2004, non-Turbo / non-GT) Porsche 997.1 Carrera (2005–2008, non-S) Does not fit: 996/997 Turbo, GT3/GT2, PCCB/ceramic brake packages, or 997.2 models. Technical Specifications Diameter: 340mm (OE 317mm) Vane Design: Curved, directional Hat Material: 6061-T6 aluminum, black anodized Ring Material: High-carbon cast iron Hardware: 10 floating drive pins with Class 12.9 fasteners Sold/Price: Per pair Girodisc A1-031 FAQs Do I need different brake pads? No. These rotors retain the factory caliper and pad shape—just choose your preferred compound for street or track use. Will these make noise like race rotors? No. Girodisc’s spring washer hardware prevents the rattle commonly found in floating rotors while maintaining proper float for thermal expansion. Are the rings replaceable? Yes. The design allows you to replace only the iron rings and reuse the aluminum hats, saving long-term cost. Can I use these for track days? Absolutely. They’re engineered to handle repeated heat cycles without warping or cracking when paired with proper pads and fluid. Upgrade your Porsche braking system with precision-engineered Girodisc rotors. Order today and experience improved stopping performance and reduced weight.

Girodisc 350mm Porsche 996 / 991 / 992 Rear Rotors (with Spacers & Bolts) The Girodisc A2-032B Rear Rotor Kit is a premium direct-fit replacement for Porsche 996, 991, and 992 models. Engineered for high-performance driving, this system includes caliper spacers and longer bolts to accommodate the larger 350mm rotors. The result is improved braking torque, enhanced cooling efficiency, and reduced unsprung mass—all while retaining factory fitment and ABS calibration. Lightweight Design & Increased Performance Each Girodisc rotor assembly pairs a CNC-machined 6061-T6 aluminum hat with a proprietary cast iron disc. The 2-piece design significantly reduces rotational mass compared to OEM rotors, improving suspension response and acceleration. The curved vane design acts as a centrifugal pump, drawing air through the rotor to enhance cooling and resist fade under extreme braking conditions. Precision Floating Mount System The rotors feature Girodisc’s race-proven floating mount design with 10 cadmium-plated steel drive pins connecting the iron ring to the aluminum hat. These pins allow the disc to expand radially under high temperatures without warping, ensuring consistent pad contact. Anti-noise spring washers eliminate rattle, maintaining quiet operation suitable for street and track use alike. Girodisc A2-032B 350mm 2pc Porsche Rear Rotor Vehicle Fitment Porsche 996 Carrera / Carrera 4 / Carrera 4S Porsche 991 Carrera / Carrera 4 / Carrera GTS (Base models require S/4S/GTS rear pad shape for full rotor sweep) Porsche 992 Carrera / Carrera S / Carrera 4S Direct bolt-on installation with supplied spacers and hardware Technical Specifications CMS Number: A2-032B Position: Rear Rotor Diameter: 350mm (includes caliper spacers & longer bolts) Design: 2-piece floating rotor assembly Material: Proprietary cast iron with 6061-T6 aluminum hat Vane Design: Curved directional vanes for improved airflow Hardware: Cadmium-plated steel drive pins, class 12.9 screws, anti-noise washers Rebuildable: Yes — replace rotor rings, reuse aluminum hats Sold/Price: Per pair Girodisc A2-032B 350mm 2pc Porsche Rear Rotor FAQs Do these rotors fit all Porsche 996, 991, and 992 models? Yes. However, 991 base Carrera models must use the S/4S/GTS rear pad shape for full pad sweep. What is included with this kit? Each kit includes two 350mm rotors, caliper spacers, and longer mounting bolts for a complete direct installation. Are modifications required? No. The supplied hardware makes this a true bolt-on upgrade using factory calipers and lines. What are the main benefits over stock rotors? Improved cooling, reduced weight, better pedal response, and replaceable rings for long-term cost savings. Upgrade your Porsche’s braking system with the Girodisc A2-032B Rear Rotor Kit. Experience reduced fade, sharper braking response, and long-term durability whether on the street or at the track.

GiroDisc 1382 Front Racing Brake Pads  GP40 Sprint & GP10 Street/Track Compounds Dominate every lap with GiroDisc D1382 Racing Brake Pads, available in two elite compounds—GP40 for sprint racing and GP10 for street and track day use. Whether you're chasing podiums in HPDE or logging laps in long-distance formats, GiroDisc delivers the high-performance braking you demand. The GP40 Sprint compound provides aggressive initial bite and linear modulation, making it ideal for track day warriors, club racers, and time attack drivers. For street/track day drivers, the GP10 compound offers smoother torque, excellent pad life, and low rotor wear—perfect for sessions where consistency matters most. GiroDisc 1382 Product Highlights GP40 compound: High torque, linear bite for sprint racing, time trials, and HPDE GP10 compound: Long-wear endurance pad with low rotor wear and excellent pedal feel Consistent performance across wide temperature ranges for both compounds D1382 pad shape fits many high-performance brake calipers GiroDisc 1382 Frequently Asked Questions (FAQ) What’s the difference between the GP40 and GP10 compounds? The GP40 is a high-bite sprint racing pad for aggressive braking and short sessions. The GP10 is a smoother, longer-wearing compound ideal for street and track day use. Can I daily drive with GP40 or GP10 pads? GP10 is the best compromise between street and track use.  GP40 compound pads are engineered for track-only use. They may be noisy, dusty, and lack the cold bite necessary for street driving. Do both compounds fit the same D1382 shape? Yes. Both GP40 and GP10 are available in the D1382 pad shape, compatible with various performance calipers. What type of racing is GP40 best for? The GP40 compound excels in endurance formats such as 6-, 12-, or 24-hour races where consistency and wear resistance are key. Do I need GiroDisc rotors to use these pads? No, but pairing these pads with GiroDisc two-piece rotors is recommended for the best results. GP10-1382.17 Brake Pads GP10 compound is a high-performance street pad which is designed to have a smooth bite and make minimal noise at cold temperatures. Made for us by a friction technology specialist in Japan, it can be taken on track if you truly need a pad that does it all. Please note that if your car spends more time on track than the street, we would recommend stepping up to a full race pad like our GP40. GP40-1382.17 Brake Pads GP40 compound falls between a sprint and an endurance compound. It maintains good bite and pedal feel while being friendly to your rotors. They are a favorite among our track day customers and shares a lineage with compounds found on cars competing in legendary races like the 24 Hours of Le Mans. These pads have been race-tested and hold up to the brutal conditions on the track.

GiroDisc 1389 Front Racing Brake Pads  A race pad for all occasions. Our GP35 compound combines the best of both worlds into one all-around race pad. We took some of the longevity of our endurance pads, some of the bite of our sprint pads, and worked to develop a compound that can do it all. As a bonus, it’s easy to bed, which means less time figuring your brakes out, and more time driving on the track. The GP35 is designed to work with street car ABS as well as motorsport-grade ABS found in factory-built race cars. The torque curve is designed to be smooth and linear, which leads to superior modulation and release under trail braking. These pads work with a wide range of tires, from DOT street tires to R-compounds to full race slicks. It has become our most popular compound and is the compound we recommend most frequently to track day drivers and shops running cars in professional racing series. Note: this compound is only compatible with iron rotors. GiroDisc 1389 FITMENT GUIDE: Make Model Build (Year) Front Rear Porsche 991 3.4 Carrera [iron brakes] 12 - 16 X Porsche 991.2 3.0 Carrera [iron brakes] 17 - 19  X Porsche 992 3.0 Carrera [iron brakes] 20 - X Porsche 997 3.6 C & 3.6 C4 08 - 11 X Porsche 718 Boxster 2.0 [982] 16 - 25 X Porsche 718 Boxster S 2.5 [982] 16 - 25 X Porsche Boxster 2.7 [981] 12 - 16 X Porsche Boxster GTS 3.4 [981] 14 - 16 X Porsche Boxster S 3.4 [981] 12 - 16 X Porsche 718 Cayman 2.0 [982] 17 - 25 X Porsche 718 Cayman S 2.5 [982] 17 - 25 X Porsche Cayman 2.7 [981] 13 - 16 X Porsche Cayman GTS 3.4 [981] 14 - 16 X Porsche Cayman S 3.4 [981] 13 - 16 X

D1-145 Girodisc Corvette, Camaro 394mm Front Replacement Rings Bring race-level braking precision to your GM performance car with Girodisc D1-145 394mm 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 cast iron, ensuring excellent heat dissipation, consistent friction, and fade-free braking during aggressive street or track sessions. Vehicle Fitment Compatible with:• Chevrolet Corvette C7 Z06 / Grand Sport (Front)• Chevrolet Camaro ZL1 (6th Gen, 2017+)• Chevrolet Camaro SS 1LE (2016+)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 full floating hardware kit• Direct replacements for Girodisc 394mm two-piece front rotors• CNC-machined from high-carbon iron alloy for superior heat resistance• Directional curved vanes accelerate airflow and reduce operating temperatures• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced for smooth operation and reduced unsprung weight• 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 new hardware kit• Sold/priced per pair Girodisc D1-145 Corvette / Camaro 394mm Front Replacement Ring FAQs Do these rotors fit OEM Z06 or ZL1 hats? No. The D1-145 rings are specifically engineered for Girodisc aluminum hats and cannot be mounted to factory one-piece rotors or carbon-ceramic assemblies. What pad compounds work best with these rings? For dual-use driving, Pagid RS29 or Ferodo DS2500 pads are recommended. For dedicated track setups, use Pagid RSL1  compounds for higher temperature thresholds. What torque specs are required for the mounting hardware? Torque each fastener to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after the first full heat cycle to confirm proper seating. Are these rotors directional? Yes. Each ring is labeled for left and right installation — follow the vane direction to maintain optimal airflow and cooling under heavy braking. Upgrade your Corvette or Camaro’s braking system with Girodisc D1-145 394mm front replacement rings — engineered for endurance, balance, and peak thermal performance on road or circuit.