AP Racing 380x34mm 2-piece J Hook Rear Floating Racing Brake Rotors Fit The Following Cars (w/ OEM Iron Rotors) Porsche 992 Turbo (Rear) Porsche 992 911 GTS (Rear) Porsche 991 Turbo (Rear) Porsche 997 Turbo S (Rear) Porsche 981 GT4 (Rear) AP Racing by Essex 2-piece Competition J Hook rear disc pair for 992 Turbo, 992 911 GTS, 981 GT4, 991.1 & 991.2 Turbo & 997 TurboS with iron discs 380mm x 34mm (14.96" x 1.34") 72 Vane, D66 Huge increase in airflow, cooling capacity, and durability vs. OEM discs Saves 2 lbs. unsprung weight per side vs. OEM iron discs Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips Sold/priced per pair. AP Racing J Hook Brake Rotors – The Gold Standard in Track Day & Racing Performance Engineered for professional motorsport, HPDE, and dedicated track day use, AP Racing’s J Hook Brake Rotors deliver uncompromising performance, thermal stability, and consistent braking power. These two-piece, floating rotors are built to handle the extreme demands of road racing, with design features derived from over 50 years of elite competition—including Formula 1, NASCAR, and IMSA. Unlike conventional one-piece rotors, AP Racing’s two-piece floating design features a billet aluminum hat mated to a cast iron disc via precision-engineered bobbins. This setup allows for controlled radial expansion under high heat, minimizing distortion and coning. The result? More even pad wear, a firmer pedal feel, and longer component life, even during extended lapping sessions or endurance racing. Floating hardware includes anti-knockback spring clips that reduce piston retraction while eliminating common NVH issues like rattling. Why Choose AP Racing J Hook Rotors? Advanced Cooling, Superior Bite, Unmatched Durability At the heart of every rotor is AP Racing’s proprietary high-carbon iron alloy, developed to withstand repeated thermal cycling without cracking or warping. Internally, directional vanes—far superior to OEM pillar or straight vane designs—maximize airflow and cooling. With 60 to 84 vanes per rotor, AP Racing achieves faster heat evacuation, reduced brake fade, and a more consistent friction surface. These rotors are left/right-specific for optimal airflow and balance. The exclusive J Hook slot pattern offers enhanced initial bite and promotes uniform heat distribution across the rotor face, reducing pad deposits and vibration. Unlike drilled rotors or straight-slot competitors, the J Hook design provides cleaner pad transfer during bed-in and superior modulation under braking—ideal for serious drivers who demand feedback and control. Yes, you might hear a little more whirr, but you’ll gain the stopping power, consistency, and longevity your lap times demand. Premium Components, Affordable Performance The rotor hats are CNC-machined from 6061-T6 billet aluminum and hard anodized for strength and heat resistance. Scalloped edges under the hat further assist heat dissipation. All hardware is U.S.-made to AP Racing spec, the same quality found on pro-level racing platforms. And while these rotors are race-proven, they’re also surprisingly cost-effective to replace. Don’t settle for cheap rotors that crack after a weekend—AP’s J Hook rings offer better durability and real long-term value. Fewer replacements mean more track time, less downtime, and peace of mind knowing you're running the best. Used by Champions. Trusted by Experts. From endurance racers to HPDE enthusiasts, AP Racing brake rotors are trusted worldwide for their reliability, longevity, and performance under pressure. Whether you're shaving seconds off your lap time or building a dedicated track car, the J Hook delivers a professional-grade solution that won’t let you down.   AP Racing J Hook Brake Rotors for Auto Racing, Track Days & HPDE Why Rotor Design Matters: Heat Expansion and Floating Technology As with most metals, iron brake discs expand significantly under heat. When temperatures rise, the disc grows radially—expanding in both diameter and circumference. Traditional one-piece rotors struggle to accommodate this natural expansion. As the outer edge pulls away from the center under heat stress, it creates a condition called “coning”—a distortion that compromises pad-to-rotor contact. This distortion can lead to uneven pad wear, brake tapering, and an inconsistent, long brake pedal. AP Racing two-piece floating brake rotors are purpose-built to eliminate these issues. Engineered with “float” built into the disc or hat assembly, these rotors feature oblong-shaped mounting holes that allow the hardware to slide as the disc heats up. This flexibility ensures the disc runs true within the caliper under high-temperature loads, effectively reducing distortion, minimizing pad taper and stress cracks, and promoting longer component life. Custom Mounting Hardware & Anti-Knockback Spring Clips AP Racing rotors utilize application-specific, U.S.-made mounting hardware—not generic bolts. These premium components are the exact parts used in AP’s professional motorsport products, engineered to withstand the rigors of competitive racing. To manage lateral disc motion that can push caliper pistons backward (known as knockback), AP Racing integrates anti-knockback spring clips on alternating bobbins—five on a ten-bolt setup, six on a twelve-bolt disc. These clips keep the aluminum hat and iron disc ring properly aligned while still allowing for radial float. Bonus: they eliminate annoying rattles and vibrations, ensuring a quieter, more refined braking experience. High-Performance Hat Design for Heat Isolation The disc hats in AP Racing’s two-piece floating rotors are CNC-machined from 6061-T6 billet aluminum and finished with a hard anodized coating. This high-strength aluminum alloy was selected for its ability to maintain structural integrity even at elevated temperatures. AP adds scalloped channels beneath the hat to further encourage airflow and heat evacuation from the outer disc face, minimizing thermal transfer to hubs and wheel bearings—helping reduce maintenance costs on these expensive components. Internal Vane Engineering: Airflow Optimization & Thermal Stability AP Racing’s internal vane design sets them apart from OEM and most aftermarket competitors. While many factory brake discs use non-directional pillar vanes (low-cost and NVH-focused), AP Racing rotors use directional vanes engineered for maximum airflow. These rotors are side-specific—meaning you’ll receive a unique left and right disc in each set—ensuring optimized cooling through strategic vane orientation and shape. Beyond that, AP Racing rotors feature a superior vane count, typically ranging from 60 to 84 vanes, compared to 30–48 in most aftermarket rotors. After extensive CFD and thermal analysis, this high vane count was proven to: Increase airspeed and thermal transfer Reduce recirculation and deflection at the disc face Minimize coning, cracking, and brake fade Deliver more even pad contact and extended rotor life J Hook Slot Pattern: Exclusive to AP Racing Slots and drill holes may improve initial bite, but they also introduce “cool spots” in the rotor face—areas of uneven heating that can lead to stress risers, cracks, and pad vibration. OEM rotors often avoid this by leaving the disc face blank, but that compromises bite and brake feel. AP Racing’s patented J Hook design, developed through rigorous R&D, solves this problem. The hooks are meticulously spaced around the disc’s circumference and from hat to edge, forming a continuous distortion path that ensures even heat distribution. This encourages uniform pad deposits during bed-in, helps reduce judder and cracking, and improves consistency under repeated high-load braking. In addition, the J Hook slots provide more leading edges for pads to grip than traditional curved slots or blank rotors. While this might generate a mild whirring sound during braking, the benefits—more bite, cleaner bedding, better pedal feel—make it the top choice for committed racers and serious track day drivers. Metallurgy Backed by 50+ Years of Motorsport Leadership AP Racing's reputation is built on performance, and their proprietary iron alloy used in J Hook rotors is no exception. Drawing from over five decades of elite motorsport experience, including 750+ Formula 1 wins and widespread use across NASCAR, AP’s engineers have developed a disc alloy that excels under sustained racing temperatures and stress. Where OEM discs focus on affordability and mass production, AP Racing’s J Hook rotors are purpose-built for motorsport durability and heat resistance. Affordable Replacement Cost: Serious Value for Serious Drivers Even the best brake rotors are consumables. When you drive hard—especially at the track—your discs will eventually wear out. That’s why AP Racing designed their replacement iron rings to be cost-effective, allowing you to replace worn parts without breaking the bank. Compare that to constantly buying cheap $150 rotors every weekend—rotors that can't handle the heat and need to be swapped frequently. With AP Racing’s J Hook rotors, you get longer service intervals, less downtime, and better performance over time, making them an incredibly smart long-term investment. Proven on Track. Trusted by Champions. Top-tier racing teams rely on AP Racing J Hook rotors for one reason: they perform under pressure. Whether you're running time trials, attending HPDE events, or competing in wheel-to-wheel racing, these rotors offer professional-grade reliability, safety, and performance. Bedding and preparation of AP Racing J Hook Disc Properly preparing your new brake discs before heavy use is extremely important. The goal of bedding-in your brake pads and discs is to mate them together properly and prepare them for heavy use.  When prepared properly, or bed-in, your pads will transfer a thin layer of material to the disc face (transfer layer).  The pads in your caliper will then actually ride on that thin layer of pad material you’ve put down on the rotor, rather than rubbing directly on the iron rotor face.  A good transfer layer is going to give you superior brake pedal feel, less noise, superior pad wear, and lower the chances of cracking your discs. Important Notes- PLEASE READ! First, make sure you are on a closed course to perform a proper bed-in.  Do NOT perform the procedure on public roads.  You need a stretch of asphalt with long straights, good visibility, and no potential obstructions.  Make sure you are in a position to safely and repeatedly attain the necessary speeds to perform the bed-in procedure.  A controlled racetrack is the best place to perform this procedure.  AP Racing and Competition Motorsport in no way suggest or condone speeding on public roads or breaking the law in your car, nor do we take responsibility for any damage or injury that occurs as a result of using our product or these procedures.  You are performing the bed-in procedure at your own risk.  During these procedures, it’s critical that you never come to a complete stop with your foot on the brake pedal.  If you have brake ducts on your car, you may want to block them off to allow your brake system to heat up easily. The procedure outlined below is a generic procedure for most types of mild race pad.  Please check your pad manufacturer’s recommended bed-in procedure. Accelerate to approximately 60mph and then decelerate down to 5 mph.  If your car has ABS, you should try to hold the brakes at a point just before ABS intervention.  Once the car slows to 5mph, immediately accelerate back up to about 60mph, and brake again to roughly 5mph.  Repeat this series of stopping and accelerating 8 to 10 times.  Again, do not come to a complete stop with your foot on the brake pedal. Cool the brake system down by cruising at 45mph+ for 5 to 10 minutes. Visually inspect your discs.  They should be a blue/grey color (instead of shiny silver), and have an even layer of pad material across and around the entire rotor face. If the AP Racing rotors don’t have a layer of pad material on them, perform another series of stops in the manner outlined above.

AP Racing 380x34mm 2-piece J Hook Front Floating Racing Brake Rotors Fit The Following Cars (w/ OEM Iron Rotors) Porsche 991 Turbo (Front) Porsche 997 Turbo S (Front) Porsche 981 GT4 (Front) AP Racing by Essex 2-piece Competition J Hook front disc pair for 981 GT4, 991.1 & 991.2 Turbo & 997 TurboS with iron discs 380mm x 34mm (14.96" x 1.34") 72 Vane, D66 Huge increase in airflow, cooling capacity, and durability vs. OEM discs Saves 2 lbs. unsprung weight per side vs. OEM iron discs Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips Sold/priced per pair. AP Racing J Hook Brake Rotors – The Gold Standard in Track Day & Racing Performance Engineered for professional motorsport, HPDE, and dedicated track day use, AP Racing’s J Hook Brake Rotors deliver uncompromising performance, thermal stability, and consistent braking power. These two-piece, floating rotors are built to handle the extreme demands of road racing, with design features derived from over 50 years of elite competition—including Formula 1, NASCAR, and IMSA. Unlike conventional one-piece rotors, AP Racing’s two-piece floating design features a billet aluminum hat mated to a cast iron disc via precision-engineered bobbins. This setup allows for controlled radial expansion under high heat, minimizing distortion and coning. The result? More even pad wear, a firmer pedal feel, and longer component life, even during extended lapping sessions or endurance racing. Floating hardware includes anti-knockback spring clips that reduce piston retraction while eliminating common NVH issues like rattling. Why Choose AP Racing J Hook Rotors? Advanced Cooling, Superior Bite, Unmatched Durability At the heart of every rotor is AP Racing’s proprietary high-carbon iron alloy, developed to withstand repeated thermal cycling without cracking or warping. Internally, directional vanes—far superior to OEM pillar or straight vane designs—maximize airflow and cooling. With 60 to 84 vanes per rotor, AP Racing achieves faster heat evacuation, reduced brake fade, and a more consistent friction surface. These rotors are left/right-specific for optimal airflow and balance. The exclusive J Hook slot pattern offers enhanced initial bite and promotes uniform heat distribution across the rotor face, reducing pad deposits and vibration. Unlike drilled rotors or straight-slot competitors, the J Hook design provides cleaner pad transfer during bed-in and superior modulation under braking—ideal for serious drivers who demand feedback and control. Yes, you might hear a little more whirr, but you’ll gain the stopping power, consistency, and longevity your lap times demand. Premium Components, Affordable Performance The rotor hats are CNC-machined from 6061-T6 billet aluminum and hard anodized for strength and heat resistance. Scalloped edges under the hat further assist heat dissipation. All hardware is U.S.-made to AP Racing spec, the same quality found on pro-level racing platforms. And while these rotors are race-proven, they’re also surprisingly cost-effective to replace. Don’t settle for cheap rotors that crack after a weekend—AP’s J Hook rings offer better durability and real long-term value. Fewer replacements mean more track time, less downtime, and peace of mind knowing you're running the best. Used by Champions. Trusted by Experts. From endurance racers to HPDE enthusiasts, AP Racing brake rotors are trusted worldwide for their reliability, longevity, and performance under pressure. Whether you're shaving seconds off your lap time or building a dedicated track car, the J Hook delivers a professional-grade solution that won’t let you down.   AP Racing J Hook Brake Rotors for Auto Racing, Track Days & HPDE Why Rotor Design Matters: Heat Expansion and Floating Technology As with most metals, iron brake discs expand significantly under heat. When temperatures rise, the disc grows radially—expanding in both diameter and circumference. Traditional one-piece rotors struggle to accommodate this natural expansion. As the outer edge pulls away from the center under heat stress, it creates a condition called “coning”—a distortion that compromises pad-to-rotor contact. This distortion can lead to uneven pad wear, brake tapering, and an inconsistent, long brake pedal. AP Racing two-piece floating brake rotors are purpose-built to eliminate these issues. Engineered with “float” built into the disc or hat assembly, these rotors feature oblong-shaped mounting holes that allow the hardware to slide as the disc heats up. This flexibility ensures the disc runs true within the caliper under high-temperature loads, effectively reducing distortion, minimizing pad taper and stress cracks, and promoting longer component life. Custom Mounting Hardware & Anti-Knockback Spring Clips AP Racing rotors utilize application-specific, U.S.-made mounting hardware—not generic bolts. These premium components are the exact parts used in AP’s professional motorsport products, engineered to withstand the rigors of competitive racing. To manage lateral disc motion that can push caliper pistons backward (known as knockback), AP Racing integrates anti-knockback spring clips on alternating bobbins—five on a ten-bolt setup, six on a twelve-bolt disc. These clips keep the aluminum hat and iron disc ring properly aligned while still allowing for radial float. Bonus: they eliminate annoying rattles and vibrations, ensuring a quieter, more refined braking experience. High-Performance Hat Design for Heat Isolation The disc hats in AP Racing’s two-piece floating rotors are CNC-machined from 6061-T6 billet aluminum and finished with a hard anodized coating. This high-strength aluminum alloy was selected for its ability to maintain structural integrity even at elevated temperatures. AP adds scalloped channels beneath the hat to further encourage airflow and heat evacuation from the outer disc face, minimizing thermal transfer to hubs and wheel bearings—helping reduce maintenance costs on these expensive components. Internal Vane Engineering: Airflow Optimization & Thermal Stability AP Racing’s internal vane design sets them apart from OEM and most aftermarket competitors. While many factory brake discs use non-directional pillar vanes (low-cost and NVH-focused), AP Racing rotors use directional vanes engineered for maximum airflow. These rotors are side-specific—meaning you’ll receive a unique left and right disc in each set—ensuring optimized cooling through strategic vane orientation and shape. Beyond that, AP Racing rotors feature a superior vane count, typically ranging from 60 to 84 vanes, compared to 30–48 in most aftermarket rotors. After extensive CFD and thermal analysis, this high vane count was proven to: Increase airspeed and thermal transfer Reduce recirculation and deflection at the disc face Minimize coning, cracking, and brake fade Deliver more even pad contact and extended rotor life J Hook Slot Pattern: Exclusive to AP Racing Slots and drill holes may improve initial bite, but they also introduce “cool spots” in the rotor face—areas of uneven heating that can lead to stress risers, cracks, and pad vibration. OEM rotors often avoid this by leaving the disc face blank, but that compromises bite and brake feel. AP Racing’s patented J Hook design, developed through rigorous R&D, solves this problem. The hooks are meticulously spaced around the disc’s circumference and from hat to edge, forming a continuous distortion path that ensures even heat distribution. This encourages uniform pad deposits during bed-in, helps reduce judder and cracking, and improves consistency under repeated high-load braking. In addition, the J Hook slots provide more leading edges for pads to grip than traditional curved slots or blank rotors. While this might generate a mild whirring sound during braking, the benefits—more bite, cleaner bedding, better pedal feel—make it the top choice for committed racers and serious track day drivers. Metallurgy Backed by 50+ Years of Motorsport Leadership AP Racing's reputation is built on performance, and their proprietary iron alloy used in J Hook rotors is no exception. Drawing from over five decades of elite motorsport experience, including 750+ Formula 1 wins and widespread use across NASCAR, AP’s engineers have developed a disc alloy that excels under sustained racing temperatures and stress. Where OEM discs focus on affordability and mass production, AP Racing’s J Hook rotors are purpose-built for motorsport durability and heat resistance. Affordable Replacement Cost: Serious Value for Serious Drivers Even the best brake rotors are consumables. When you drive hard—especially at the track—your discs will eventually wear out. That’s why AP Racing designed their replacement iron rings to be cost-effective, allowing you to replace worn parts without breaking the bank. Compare that to constantly buying cheap $150 rotors every weekend—rotors that can't handle the heat and need to be swapped frequently. With AP Racing’s J Hook rotors, you get longer service intervals, less downtime, and better performance over time, making them an incredibly smart long-term investment. Proven on Track. Trusted by Champions. Top-tier racing teams rely on AP Racing J Hook rotors for one reason: they perform under pressure. Whether you're running time trials, attending HPDE events, or competing in wheel-to-wheel racing, these rotors offer professional-grade reliability, safety, and performance. Bedding and preparation of AP Racing J Hook Disc Properly preparing your new brake discs before heavy use is extremely important. The goal of bedding-in your brake pads and discs is to mate them together properly and prepare them for heavy use.  When prepared properly, or bed-in, your pads will transfer a thin layer of material to the disc face (transfer layer).  The pads in your caliper will then actually ride on that thin layer of pad material you’ve put down on the rotor, rather than rubbing directly on the iron rotor face.  A good transfer layer is going to give you superior brake pedal feel, less noise, superior pad wear, and lower the chances of cracking your discs. Important Notes- PLEASE READ! First, make sure you are on a closed course to perform a proper bed-in.  Do NOT perform the procedure on public roads.  You need a stretch of asphalt with long straights, good visibility, and no potential obstructions.  Make sure you are in a position to safely and repeatedly attain the necessary speeds to perform the bed-in procedure.  A controlled racetrack is the best place to perform this procedure.  AP Racing and Competition Motorsport in no way suggest or condone speeding on public roads or breaking the law in your car, nor do we take responsibility for any damage or injury that occurs as a result of using our product or these procedures.  You are performing the bed-in procedure at your own risk.  During these procedures, it’s critical that you never come to a complete stop with your foot on the brake pedal.  If you have brake ducts on your car, you may want to block them off to allow your brake system to heat up easily. The procedure outlined below is a generic procedure for most types of mild race pad.  Please check your pad manufacturer’s recommended bed-in procedure. Accelerate to approximately 60mph and then decelerate down to 5 mph.  If your car has ABS, you should try to hold the brakes at a point just before ABS intervention.  Once the car slows to 5mph, immediately accelerate back up to about 60mph, and brake again to roughly 5mph.  Repeat this series of stopping and accelerating 8 to 10 times.  Again, do not come to a complete stop with your foot on the brake pedal. Cool the brake system down by cruising at 45mph+ for 5 to 10 minutes. Visually inspect your discs.  They should be a blue/grey color (instead of shiny silver), and have an even layer of pad material across and around the entire rotor face. If the AP Racing rotors don’t have a layer of pad material on them, perform another series of stops in the manner outlined above.

Girodisc A1-066 Two Piece Floating Rotors 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 Competition Motorsport 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.

Girodisc A2-049B 2pc Front Brake Rotors (350mm) Commonly used in the Porsche 718 GTS 4.0 Non-PCCB, these Girodisc A2-049B rotors deliver lightweight performance and superior durability. Competition Motorsport stocks Girodisc products for fast shipping to get you back on track without delays. Lightweight Floating Rotor Upgrade The Girodisc two-piece system upgrades the OEM brakes with a high-strength steel disc and aircraft-grade aluminum hat. This floating rotor design bolts directly to OEM calipers and maintains proper brake bias and ABS function while reducing unsprung weight and rotational mass. The result: faster suspension response and improved braking power. Features The Girodisc A2-049B 2pc Front Brake Rotors include: Direct bolt-on replacement with OEM calipers Floating rotor design with cadmium-plated drive pins 6061-T6 aircraft aluminum hat for reduced weight Racing-grade cast iron rotor disc with curved vane cooling Maintains OEM brake bias and ABS performance Reduced unsprung mass for better handling response Replaceable rotor rings to lower long-term maintenance cost Sold and priced per pair Girodisc A2-049B FAQs Will these rotors work with my Porsche 718 GTS 4.0? Yes, the A2-049B is commonly used on the 718 GTS 4.0 Non-PCCB models and bolts directly to OEM calipers. Do I need to change pads when upgrading to Girodisc rotors? You can use Girodisc rotors with OEM pads, but we recommend Pagid or PFC performance pads for maximum performance and durability. Are Girodisc rotors lighter than OEM? Yes, the aluminum hat and two-piece floating design reduce unsprung and rotational mass compared to OEM, improving both braking and handling response. Can I replace just the disc and keep the hat? Absolutely. Girodisc’s two-piece design allows disc-only replacement, saving money on maintenance by reusing the aluminum hat. Take Control of Your Braking Upgrade to Girodisc A2-049B rotors for improved cooling, reduced weight, and track-proven stopping power. You can also find the front rotors here A1-032. Sold/priced per pair.

A1-032 Girodisc 2pc Front Brake Rotors (350mm) Commonly also used in the 718 GTS 4.0 Non-PCCB.Competition Motorsport 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 Competition Motorsport 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. You can purchase the rear rotor here A2-049B. Sold/priced per pair.

The Girodisc system is an upgrade to a 350mm two-piece steel rotor and aluminum hat combination, 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 brake bias is maintained as well as your ABS efficiency. Girodisc rotors are lighter than the OEM rotors, reducing rotational and unsprung weight for quicker acceleration and suspension response. When used with Pagid or PFC performance brake pads and Competition Motorsport RF1 racing brake fluid (also available from Competition Motorsport), 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 in the USA from cast iron, made to the same specification and with the same material used by professional racing organizations. The rotor's 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 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 typically associated with floating rotors. The two-piece Girodisc design allows for rotor-ring only replacement to minimize future replacement costs. Priced per pair

D1-066 Girodisc Front Replacement Rotor Rings One pair of Girodisc 380mm steel replacement rotor rings for the Girodisc A1-066 (Porsche 991 Turbo Steel and 997 Turbo PCCB), A1-066 (Porsche 718/981 Cayman GT4 Steel) tand D1-146 991 GT3/GT3RS wo-piece floating rotor system. Includes new hardware needed that must be used when replacing rotor rings. Sold/priced per pair.

D1-032 Girodisc FRONT Replacement Rotor Rings REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

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.

RT RE10*:RE10 is the ultimate endurance race compound offering a balance of excellent stopping power, low thermal conductivity, extremely low pad and disc wear. Utilizing the latest friction material technology, RE10 offers consistent performance under the most demanding of environments. Typical Applications: Professional Endurance Racing, Club Racing, and HPDE on high demand brake platforms *Denotes a "race only" pad. Running a "racing use only" pad on the street could produce excessive noise and dust. Disc wear could be accelerated if driven at cold temperatures or used in the incorrect temperature range. Racing pads are designed to work in specific temperature ranges so it is important to choose the desired compound for the correct environment the vehicle will be used in. Pad Compounds are run on a brake dynamometer over multiple brake applications (stops) to test the materials in a controlled environment for the most accurate data. Wear rates and temperatures can be influenced by car setup, grip levels, track layout/configuration and many other variables.

 Pagid Racing Brake Pads No. 2707 Fits These Vehicles: Make Model Build (Year) Front Rear Porsche 996 GT2 02 - 05 X   Porsche 996 GT3 02 - 05 X   Porsche 996 GT3 Cup 02 - 05 X   Porsche 996 GT3 RS [street car] 03 - 05 X   Porsche 997 all models ceramic brakes 05 - 12 X   Porsche 997 GT3 07 - 11 X   Porsche 997 GT3 RS 07 - 12 X   Porsche 997 Turbo 06 - 12 X   Porsche Boxster [987] [ceramic brakes] 05 - 12 X   Porsche Carrera GT 04 - 06 X X Porsche Cayman [987] [ceramic brakes] 06 - 12 X   COMPOUNDS: RSL29, RSC1 Pagid Racing Brake Pads No. 2707 RSL 29: The Pagid RS29 (Yellow) is the world-leading endurance brake pad used by most of the winning teams in motorsport. Although designed primarily for endurance racing, many competitors use this material successfully for sprint and short distance races also. RS29 has also found favor in the growing track day market due to the level of control, good cold performance, long life and low disc wear. RSC 1: The Pagid RSC1 is a good street/track compromise for enthusiasts with Carbon-Ceramic Brakes. Used for sprint racing and track days compound with all known types of ceramic brake discs. An ideal combination of cold friction, fade resistance and low thermal oxidation of the disc surface.

Performance Friction PFC Brake Pads 7819.XX.17.44 Race-Ready, High-Performance Brake Pads Performance Friction Corporation (PFC) Brake Pads 7819.XX.17.44 deliver unmatched stopping power, precision control, and proven durability for sports car racing. Engineered with over 35 years of friction expertise, these premium brake pads are built to perform at the highest levels of motorsport competition. Each PFC brake pad is manufactured using proprietary friction materials and a zero-compromise design process to ensure consistent, fade-free braking under extreme track conditions. All PFC pad compounds are “Race Ready,” offering a fast and easy bed-in process with rotors for immediate performance gains. Trusted by Championship Teams Worldwide PFC Brake Pads are trusted by professional drivers and racing teams competing in some of the world’s most demanding series, including: NTT IndyCar Series IMSA Continental Tire SportsCar Challenge Porsche Cup Racing Pirelli World Challenge ...and many more! Why Choose PFC Brake Pads 7819.XX.17.44? High-performance, race-proven friction materials Consistent pedal feel and fade resistance Quick, reliable burnishing with minimal downtime Used by winning teams with More Championships than Any Other™ When it comes to professional-grade racing brakes, PFC Brake Pads 7819.XX.17.44 are the performance upgrade your car needs. Join the global community of champions who trust PFC for faster laps, better control, and superior stopping power. PFC 11 Compound A new generation sprint and medium-distance friction compound, PFC 11 gives you the ultimate in control and modulation, along with superior disc conditioning. Developed from PFC's ultra-popular 01 compound with improved bite, modulation, and release characteristics. PFC 11 is ultra-smooth, developed to reduce wheel locking at the end of braking while giving more hot and cold bite than the endurance-oriented 08 compound. Brake with ultimate control, modulation, and confidence. PFC 331 Compound PFC 331 is the next generation of PFC endurance material, giving you improved control with ABS while being gentle on rotors. The 331 Carbon Metallic compound has been developed with higher initial bite than PFC’s renowned 08 endurance compound. The 331 has improved release while continuing to offer exceptional control and feel. It boasts a low wear rate and exceptional disc conditioning. Fits the Following Vehicles (Front): Porsche 996 2002+ GT3 Super-Cup Porsche 996 2002+ GT2 Porsche 996 1998-2004 GT3 / 2 / RS Porsche 997 2004+ Carrera GT Porsche 997 2004-11 GT2 / GT3 / GT3 RS / GT3 Cup C4 Porsche 997 2006+ Turbo * * Porsche 997 Turbo uses 7819 pad with 350mm discs 

RT RE10*:RE10 is the ultimate endurance race compound offering a balance of excellent stopping power, low thermal conductivity, extremely low pad and disc wear. Utilizing the latest friction material technology, RE10 offers consistent performance under the most demanding of environments. Typical Applications: Professional Endurance Racing, Club Racing, and HPDE on high demand brake platforms *Denotes a "race only" pad. Running a "racing use only" pad on the street could produce excessive noise and dust. Disc wear could be accelerated if driven at cold temperatures or used in the incorrect temperature range. Racing pads are designed to work in specific temperature ranges so it is important to choose the desired compound for the correct environment the vehicle will be used in. Pad Compounds are run on a brake dynamometer over multiple brake applications (stops) to test the materials in a controlled environment for the most accurate data. Wear rates and temperatures can be influenced by car setup, grip levels, track layout/configuration and many other variables.

Cobalt Brake Pads Porsche RC11 Racing Brake Pads (Front) Cobalt RC11 Fits The Following Vehicles: Porsche 997 GT3 Cup Car  (2006-2012) Porsche 996 GT3 Cup Car (2000-2005) Porsche 997 Turbo (2007-2012 Porsche 997 GT3/GT3RS/GT2/GT2RS (2007-2012) Porsche Carrera GT Front and Rear Pads Cobalt Friction Technologies, Inc. is a leading developer & manufacturer of friction compounds for high-performance and professional motorsport disc brake applications. With our industry-leading range of race-proven XR-Series Carbon-Ceramic materials, Cobalt has a solution to meet your most demanding performance requirements, while always exceeding your expectations with superior technical and race engineering support. PASSION The heart and soul of Cobalt Friction Technologies is fueled by our never-ending passion for motorsports. Our teams and drivers continually place greater demands on their equipment, and Cobalt Friction is there to satisfy these demands every step along the way. PERFORMANCE Cobalt Friction's customer-driven research & development is what sets us apart from the competition. Our engineers do not design compounds based on lab results alone or to solely meet overly simplified, uni-dimensional "performance criteria". Rather, we continually "step outside the box" by working with and collecting feedback from our drivers and teams at all levels of professional and amateur motorsports, right there at the race track...week in and week out. When being the best and finishing first is the only option, Cobalt Friction accepts zero compromises, and so do our customers and teams. TECHNICAL EXCELLENCE Cobalt-equipped drivers and teams are backed by race engineering support that is second to none. From the garages at the Rolex 24 at Daytona to the paddock at the SCCA Nationals, Cobalt Friction Technologies delivers the products, knowledge and power to win.

PFC Brake Pads 991.08.17.44 FRONT PFC 08 COMPOUND One of PFC's most popular compounds which came to fame in Endurance Sports Car and GT racing due to its performance in applications where smooth initial bite is a must. PFC 08 has a slight friction rise with temperature, excellent release and modulation characteristics. Despite its considerable performance, PFC 08 has the lowest wear rate of all PFC compounds and can easily match the wear characteristics of competitors' materials but with much higher bite and more consistent performance across a broad temperature range.   FITMENT (Iron Rotors Only): Porsche 997.1 & 997.2 GT3/GT3RS Porsche 997 Turbo Porsche 996 GT3 ¬† ¬† ¬† ¬†

Ferodo FRP3075 Porsche Front Brake Pads Designed for use with iron brake rotors only. Not for use with carbon-ceramic rotors. Ferodo FRP3075 Front Brake Pad Fitment: Porsche 997 GT3 Cup Car  (2006-2012) Porsche 996 GT3 Cup Car (2000-2005) Porsche 997 Turbo (2007-2012 Porsche 997 GT3/GT3RS/GT2/GT2RS (2007-2012) Porsche Carrera GT Front and Rear Pads Ferodo DS3.12 Brake Compound Details Released in 2019, the DS3.12 is the latest evolution in Ferodo's incredible DS line. Sports cars today have more of everything: more horsepower, more sophisticated aero, higher curb weights, and stickier tires. These attributes place serious demands on a vehicle's brake system. The Ferodo DS3.12 is the modern pad compound designed from the start to explicitly to handle those demands. Out of all the pad compounds we've ever tested, from all manufacturers, the DS3.12 shows the flattest torque curve across the broadest temperature range. That means that on every turn, on every track you drive, on every lap, your brake pedal is going to feel almost exactly the same, providing tremendous consistency and repeatability. The DS3.12 has a higher mu than Ferodo's other compounds, so not as much leg pressure is required to initiate the desired response. It is also unfadable, showing no drop in performance at any temp your brakes will ever see. In dyno testing, the DS3.12 has shown superior wear rates to the other Ferodo compounds, while remaining kind to the discs. We believe the DS3.12 is the gold standard to which other race compounds will be compared. Ferodo DS1.11 Brake Compound Details The Ferodo DS1.11 is a long duration endurance race pad that is also used in the Red Group of advanced track day drivers. With an incredible flat torque curve across the workable range of 392 to 1382 degrees. Designed to put you on the podium of your next WRL race or HPDE, the Ferodo DS1.11 is a track only pad that is designed for repeatable stopping performance and feel across a very wide temperature spectrum. The Ferodo DS1.11 brake compound makes the chassis repeatable in every brake zone, lap after lap.  The cold friction profile of the Ferodo DS1.11 is predictable and grows linear as your pad heats up with very good fade resistance all the way to its maximum 1382 F limit. Another common use of the Ferodo DS1.11 is an advanced track day driver in the red group in a well set-up chassis with sticky rubber and aero. Ferodo DS2500 Brake Compound Details Although we always recommend using a dedicated race pad for the track, the DS2500 is one of the best hybrid street/track pads on the market. It features the moderately high bite and solid fade resistance of a track pad, with the relatively low dust and noise levels of a street pad. When used as a street pad, it can produce some squeal on certain vehicle platforms. If you drive aggressively on the street, do some canyon runs, autocross, and maybe some light track duty on street tires, the DS2500 is tough to beat. Ferodo DSUNO Brake Compound Details For our customers who enjoy the performance of the DS1.11, but just want a little more bite, we recommend the DSUNO. It doesn't wear quite as long as the DS1.11, but it does offer a higher overall mu once it reaches track temperatures. Ferodo FRP3075 Performance Comparison Chart The cold friction profile of the Ferodo DS1.11 is predictable and grows linear as your pad heats up with very good fade resistance all the way to its maximum 1382 F limit. Another common use of the Ferodo DS1.11 is an advanced track day driver in the red group in a well set-up chassis with sticky rubber and aero. Ferodo FRP3075 Compound Friction Coefficient Comparison Chart Ferodo FRP3075 Compound Operating Temperature Chart