981 Boxster Spyder

Castrol React SRF Racing Brake Fluid Ultra-High Wet Boiling Point Makes Castrol SRF A Standout Castrol React SRF Racing Brake Fluid is an ultra-high performance brake fluid popular with many of the highest performing auto racing teams around the world. The key to Castrol SRF brake fluid's performance is its silicon-ester technology. Not only is it less hygroscopic (i.e., it absorbs less water) than typical glycol-based brake fluids, Castrol SRF also reacts chemically with any absorbed water to further reduce its adverse effects on high-temperature braking performance. The result is an almost unheard of 518° F (270° C) wet boiling point, more than 100° F higher than most other racing brake fluids! Exceeds SAE 1703, ISO 4925, JIS K2233, FMVSS No. 116 DOT3 and DOT 4 specifications. Note: Castrol SRF is not a silicone-based brake fluid (i.e., DOT 5) and is compatible with most factory brake systems and fluids, including DOT 3 and DOT 4 fluids. Always follow vehicle manufacturer's recommendations when adding brake fluid. Castrol React SRF Racing Brake Fluid Typical Properties: Dry Boiling Point: 590°F (310°C) Wet Boiling Point: 518°F (270°C) Superior anti-vapor lock properties One-liter (1000ml) bottle

HALO P1 High Performance Brake Fluid The World's Most Advanced Racing Brake Fluid Imagine you're on the race track, hitting the entry to a corner. Your foot hammers down on the brake, and you feel... absolute perfection. That's Halo P1 for you. Developed with Fade Resistant Technology, this specialist brake fluid is the secret sauce for top-tier motorsport enthusiasts worldwide. Why? Because when you're tearing up the track, the last thing you want is a mushy pedal feel. Halo P1 delivers a low and stable compressibility profile over an extended temperature range, not to mention a crazy-high dry boiling point of 341º C (646º F). All of this is to ensure your brake pedal feel remains as strong and consistent as your lap times.Sold in 590 ml (20 fl. oz.) bottles. Features & Benefits That'll Make You Weep Tears of Joy Fade Resistant Technology: Keeps your pedal feel consistent, lap after lap, so you can focus on nailing those corners. Pure Methyl Borate Ester Base: The purity level here is so high, it's like the distilled essence of speed itself, ensuring extreme resistance to compression, even when things get hot (and we mean really hot). World-Beating Dry Boiling Point: At 341° C (646° F), it's like this fluid laughed in the face of boiling points and set a new standard. Low Viscosity & High Lubricity: Because your brake system deserves to be as smooth as your driving skills. What Makes Halo P1 The Secret Weapon? While other brake fluids are off playing checkers, Halo P1 is mastering chess. It's not just another methyl glycol borate ester brake fluid; it's a revolution in braking performance. With its unique proprietary manufacturing process, it achieves the highest levels of purity and the lowest compressibility possible, remaining constant over a wide temperature range. This is the highest boiling point of any racing brake fluid on the market, folks. And the lubricity? Off the charts, especially at high temperatures. FAQs That'll Clear the Air Before you rush off to convert your entire garage to a Halo P1 shrine, let's tackle some of those burning questions you might have: Can I use Halo P1 in my daily driver? As much as we love the enthusiasm, Halo P1 is a race-only formula. It's like putting a rocket booster on a bicycle – thrilling, but not recommended. How often should I change my brake fluid with Halo P1? Regular maintenance is key in racing. Check with your team or mechanic, but before every major race is a good rule of thumb. The Call to Action You've Been Waiting For So, are you ready to elevate your racing game to legendary status? To feel the rush of confidence as you brake later and harder, knowing your brake fluid won't let you down? It's time to switch to Halo P1. Your podium awaits.

Pagid Racing Brake Pad Shape 4918 Pagid 4918 Brake Pad Fitment Guide Make Model Build (Year) Front Rear Porsche 991 3.4 Carrera [iron brakes] 2011 - 15 X Porsche 991.2 3.0 Carrera [iron brakes] 2015 + X Porsche 981 Boxster Spyder 2015 + X Porsche 718 Cayman GTS 4.0 [cast iron brakes] 2016 + X Porsche Cayenne [cast iron or ceramic brakes] 2006 + X VW Touareg [ceramic brakes] 2008 + X Pagid Racing Brake Pads are engineered for high-performance driving, delivering exceptional stopping power, durability, and control under the most demanding conditions. Trusted by professional racers and performance enthusiasts worldwide, these pads are crafted using advanced friction materials and cutting-edge technology to ensure consistent performance, low fade, and excellent modulation. Whether you're on the track or tackling aggressive street driving, Pagid Racing Brake Pads provide the reliability and confidence you need to push your vehicle to its limits. Pagid Racing Brake compounds are for steel (cast iron) rotors only unless otherwise noted. RSL 29 Compound The Pagid RSL 29 (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. Pagid RSC 1 Compound (Ceramic Rotors Only) A race and track day compound for all known types of ceramic brake discs, RSC 1 is a low metallic resin bonded material containing steel and aramid fibers. This material features good all-round characteristics and is suitable for all types of usage. Pagid RSC 3 Compound (Ceramic Rotors Only) RSC 3 is a low metallic resin bonded material containing steel fibers. This material is specifically developed for above mentioned applications. It is a special race compound for ceramic discs with low content of fibers in the friction surface for sprint and endurance circuit racing. Pagid RSL 1 Compound Used in GT cars, touring cars and prototype endurance racing. Due to the high friction and good modulation, often used in sprint races as well. RSL 1 is a low metallic resin bonded material containing steel and aramid fibers with very high heat resistance. It maintains a constant friction level over a wide range of temperatures. Its reduced wear rate and disc friendliness make this material appropriate for endurance races. Pagid RST 3 Compound RST 3 is a medium-high friction metal-ceramic compound containing steel fibers and is therefore the perfect complement of the RST product family. It captivates by its low heat conductivity. Rally tarmac and gravel, GT cars, touring cars and prototype circuit racing, formula cars and club racing. Wide range of applications due to it‘s combination of bite, friction and controllability.

Girodisc Porsche 718 GTS 4.0 / 981 Spyder Rear Rotors (with Spacers & Bolts) The Girodisc A2-049B Rear Rotor Kit delivers high-performance braking and improved cooling for Porsche 718 GTS 4.0 and 981 Spyder models. Designed as a direct replacement for the OE discs, this 2-piece floating rotor system includes caliper spacers and longer bolts for easy installation of the larger diameter rotors. The result is enhanced braking torque, reduced unsprung mass, and a significant upgrade in heat dissipation—all while maintaining factory balance and ABS function. Precision Engineering & Lightweight Performance Each rotor features a CNC-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary cast iron ring, ensuring optimal strength and weight reduction. The 2-piece floating design reduces rotational inertia and improves handling response. The rotor’s curved vane internal design acts as a centrifugal pump, channeling air through the disc to maximize cooling efficiency during hard use on the street or track. Floating Mount System & Quiet Operation The Girodisc floating mount system uses 10 high-strength alloy steel drive pins manufactured in-house in the USA. These pins, cadmium-plated for corrosion resistance, connect the rotor ring to the aluminum hat via class 12.9 cap screws and hardened washers. Anti-noise spring washers allow thermal expansion while eliminating unwanted rattles—offering a race-proven floating design that’s quiet enough for everyday driving. Vehicle Fitment Porsche 718 GTS 4.0 Porsche 981 Spyder Includes spacers and longer bolts for installation Requires 991 Carrera S/4S/GTS rear pad shape for full pad sweep Direct bolt-on replacement, no modifications required Technical Specifications CMS Number: A2-049B Position: Rear Rotor Diameter: 350mm (includes spacers & bolts) Design: 2-piece floating assembly Material: Proprietary cast iron rotor ring with 6061-T6 aluminum hat Vane Design: Curved directional vanes for efficient air cooling Hardware: Cadmium-plated drive pins, class 12.9 cap screws, anti-noise washers Rebuildable: Yes — replace rotor rings and reuse hats Sold/Price: Per pair FAQs for Girodisc A2-049B Do these rotors require modifications? No. The kit includes caliper spacers and longer bolts, allowing for direct installation with OEM calipers. What brake pads should I use? Use the 991 Carrera S/4S/GTS rear pad shape for complete pad sweep across the larger rotor surface. Are these rotors quieter than typical floating designs? Yes. Girodisc’s anti-noise spring washers ensure smooth, silent operation during street and track use. Can the rings be replaced? Yes. These rotors are fully rebuildable with replacement rings available from Girodisc. Upgrade your Porsche 718 GTS 4.0 or 981 Spyder with Girodisc A2-049B Rear Rotors for reduced unsprung weight, improved cooling, and consistent braking performance lap after lap.

Pagid Racing Brake Pads Shape 4922 Pagid 4922 Brake Pad Fitment Guide Make Model Build (Year) Front Rear Porsche 991 3.8 Carrera S / GTS [iron brakes] 2011 - 19 X Porsche 981 Boxster Spyder [iron brakes] 2015 - 20 X Pagid Racing Brake Pads are engineered for high-performance driving, delivering exceptional stopping power, durability, and control under the most demanding conditions. Trusted by professional racers and performance enthusiasts worldwide, these pads are crafted using advanced friction materials and cutting-edge technology to ensure consistent performance, low fade, and excellent modulation. Whether you're on the track or tackling aggressive street driving, Pagid Racing Brake Pads provide the reliability and confidence you need to push your vehicle to its limits. Pagid Racing Brake compounds are for steel (cast iron) rotors only unless otherwise noted. Pagid RSL 1 Compound Used in GT cars, touring cars and prototype endurance racing. Due to the high friction and good modulation, often used in sprint races as well. RSL 1 is a low metallic resin bonded material containing steel and aramid fibers with very high heat resistance. It maintains a constant friction level over a wide range of temperatures. Its reduced wear rate and disc friendliness make this material appropriate for endurance races. Pagid RST 1 Compound Used in Rally tarmac, GT cars and touring cars circuit racing (sprint), high down-force formula cars, NASCAR. Suitable for applications in heavy cars and where high torque is necessary against small diameter rotors. RST 1 has a very high friction level and high temperature resistance. It is a semi-metallic resin bonded material containing steel fibers. Cold friction and initial bite makes this material most appropriate for Rally and NASCAR applications.

Spiegler Stainless Brake Lines - Porsche Rear 2 Line Kit Fitments include Most Porsche Models Spiegler 100% stainless front or rear brake lines for various Porsche models. ***DOES NOT REMOVE/REPLACE REAR CALIPER HARD LINE***  These line kits were revised to retain the rear hard line on these applications. On the rear calipers, the hard line bracket is bolted to the caliper and therefore does not need to be disconnected in order to remove the caliper for a brake pad change. Features All components manufactured in USA and Europe Stress-free Torsion Fitting System. Abrasion resistant coating/sheath Aircraft quality stainless steel fittings and bolts. Heavy gauge, tightly woven stainless steel braid Stringent and consistent quality control Du Pont PTFE- Teflon® lining DOT compliant Full testing battery on all parts, with lifetime warranty  Benefits Allows 360 degree rotation of banjo fitting for correct alignment and strain reduction Eliminates snagging and chafing Superior strength, longevity, and safety Eliminates line swell, more consistent feel Reduces line expansion and provides greater durability Quality assurance, road legal Allows for personalization Purchase and drive with confidence

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

Girodisc Porsche Cayman Iron Conversion Rear Rotors Convert your PCCB-equipped Porsche Cayman or Boxster to a high-performance iron rotor system with Girodisc’s precision-engineered rear rotors. Designed as a direct replacement for OEM carbon-ceramic discs, these rotors deliver superior heat management, consistent pedal feel, and lower replacement costs without compromising braking balance or ABS function. Vehicle Fitment Porsche 987 Cayman S / Cayman R (PCCB-equipped)Porsche 987 Boxster S (PCCB-equipped)Direct replacement for factory carbon-ceramic rotorsBolts directly to OEM calipers—no modifications required High-Performance Design for Real-World Driving The Girodisc system replaces the stock PCCB units with a two-piece floating iron rotor designed for durability and serviceability. Each rotor assembly features a CNC-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary cast-iron friction ring. The curved vane internal design functions as a centrifugal air pump, maintaining consistent cooling under high braking loads. This setup preserves factory brake bias and pedal response while offering a more robust and affordable long-term solution for track or street use. Features • Direct PCCB replacement – no modifications required• 6061-T6 aluminum hats machined and anodized in the USA• Proprietary cast-iron friction rings cast and finished in-house• Floating mount design with cadmium-plated steel drive pins• Anti-noise spring washers eliminate rattle while allowing thermal expansion• Curved internal vanes maximize airflow and heat dissipation• Maintains OEM brake bias and ABS calibration• Fully rebuildable – replace only friction rings when needed• Sold/priced per pair Girodisc A2-049 Rear Rotor FAQs: Will these work with OEM PCCB calipers? Yes. These rotors are specifically designed for Caymans and Boxsters originally equipped with PCCB systems and bolt directly to the factory calipers. Why convert from PCCB to iron? Iron rotors offer greater thermal capacity and reduced replacement cost while still providing strong, consistent performance on street or track. Do these affect brake bias or ABS? No. Girodisc designs each conversion to maintain factory braking balance and ABS function. Are they rebuildable? Yes. When worn, only the iron friction rings need to be replaced—saving cost and maintaining long-term reliability. Upgrade your Cayman or Boxster’s braking system with Girodisc iron conversion rotors—precision-built for performance, reliability, and control.

Porsche 991.1 S, 4S, GTS Front Rotors The Girodisc 2-piece floating rotor system is a direct replacement for the factory rotors on the Porsche 991.1 Carrera S, 4S, and GTS. This upgrade includes precision caliper spacers that allow the installation of larger 350 mm rotors in place of the factory 340 mm discs, resulting in increased braking torque, improved cooling, and reduced fade under demanding conditions. The Girodisc rotors weigh approximately 21.0 lbs each, compared to the 24.4 lbs OEM units—reducing rotational mass for sharper acceleration and suspension response. Each rotor features a CNC-machined 6061-T6 aluminum hat bolted to Girodisc’s proprietary high-carbon cast-iron rings. The internal curved vane design functions as a centrifugal air pump, pulling cool air through the disc to efficiently dissipate heat during high-performance driving. Engineered and manufactured entirely in the USA, Girodisc rotors deliver exceptional braking consistency and reliability on both street and track. Precision-Engineered Performance A1-122 Girodisc Porsche 991.1 S, 4S, GTS Front Rotor Vehicle Fitment Porsche 991.1 Carrera S Porsche 991.1 Carrera 4S Porsche 991.1 Carrera GTS A1-122 Girodisc Porsche 991.1 S, 4S, GTS Front Rotor Features Direct replacement with included spacers: Increases rotor size to 350 mm for enhanced braking force and heat management. Lightweight construction: 21.0 lbs per rotor versus 24.4 lbs OEM reduces unsprung and rotational weight. Curved vane design: Actively circulates air through the rotor for superior cooling and fade resistance. Floating mount system: Cadmium-plated steel drive pins and anti-noise spring washers manage thermal expansion while eliminating rattle. Serviceable two-piece design: Replace only the iron rings when worn for reduced long-term cost. Made in the USA: Cast, machined, and assembled entirely in-house for unmatched quality control. A1-122 Girodisc Porsche 991.1 S, 4S, GTS Front Rotor FAQs Will these work with OEM calipers? Yes. Girodisc rotors are designed to work perfectly with stock calipers and come with spacers for proper fitment. Do I need to change brake pads? No. You can continue using your current OEM or aftermarket pads. Are these suitable for track use? Yes. The curved vane design and floating assembly ensure consistent braking under extreme temperatures. Do they affect ABS or brake balance? No. Factory brake bias and ABS functionality remain unchanged. How are they sold? Sold and priced per pair. Upgrade your 991.1 Carrera with Girodisc’s 350 mm floating rotors for improved cooling, reduced fade, and sharper pedal feel—engineered for performance driving enthusiasts.

Ferodo FCP1308 Porsche Brake Pads Ferodo FCP1308 Brake Pad Fitment (FMSI D738) Make Model Build (Year) Front Rear Porsche 996 3.4 C & 3.6 97 - 05 X Porsche 718 Boxster 2.0 [982] 16 - X Porsche 718 Boxster S 2.5 [982] 16 -  X Porsche Boxster [986] 96 - 05 X Porsche Boxster [987] 05 - 12 X Porsche Boxster 2.7 [981] 12 - 20 X Porsche Boxster GTS 3.4 [981] 14 - 20 X Porsche Boxster S [986] 99 - 05 X Porsche Boxster S [987] 05 - 12 X Porsche Boxster S 3.4 [981] 12 - 20 X Porsche Cayenne Turbo [18 wheels] 02 - 10 X Porsche 718 Cayman 2.0 [982] 16 - 20 X Porsche 718 Cayman S 2.5 [982] 16 - 20 X Porsche Cayman [987] 09 - 12 X Porsche Cayman 2.7 [981] 13 - X Porsche Cayman GTS 3.4 [981] 14 - X Porsche Cayman R [987] (none ceramic) 10 - 12 X Porsche Cayman S [987] 06 - 12 X Porsche Cayman S 3.4 [981] 13 - 20 X Ferodo DS3.12 Compound Details 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 handle those demands. The Ferodo DS3.12 is a top-tier endurance racing brake pad compound built for maximum fade resistance, high friction, and extremely consistent performance at elevated temperatures. If you need a Ferodo track brake pad for aggressive braking, long sessions, and serious motorsport use, DS3.12 is one of the strongest options in the lineup. The DS3.12 compound provides strong initial bite, a highly stable torque curve, and dependable braking performance in demanding track conditions. It is ideal for experienced drivers, endurance racing, and high-grip applications where repeatable stopping power matters most. Maximum fade resistance in the Ferodo range High friction and strong initial bite Very consistent braking response at track temperatures Excellent durability in endurance racing use Ferodo part number: {{part_number}} Best for: advanced track-day drivers and racers who want a high-performance race brake pad with elite heat capacity and confidence-inspiring consistency. Note: DS3.12 is a full race compound and may produce increased dust, disc wear, and reduced cold performance compared with street-oriented pads. Ferodo DS1.11 Compound Details The DS1.11 has a lower mu than the DS3.12 at all temperatures and can be characterized as a moderate mu pad vs. other endurance racing compounds. They require more pedal force than the DS3.12, and they have a slightly declining torque curve as temperatures rise. As they get hotter and you dive deeper into a turn, you may feel like you need to push a little harder on the brake pedal to elicit the same response (which is a feel many drivers actually prefer). Some drivers feel that the DS1.11 is more controllable on street tires than DS3.12 since ABS cannot be activated as easily. It will last a fairly long time vs. many other pad compounds on the market but does not last quite as long as the DS3.12. They are very gentle on discs at track temperatures when a proper pad transfer layer is maintained. The DS1.11 also has an outstanding max temp and fade resistance, just not quite as high as 3.12. We're not aware of anyone who has faded them, and most people differentiate between the DS1.11 and DS3.12 based on feel. The Ferodo DS1.11 is a proven endurance racing brake pad compound designed for drivers who need outstanding fade resistance, long pad life, and precise control under repeated high-temperature braking. For track cars and serious HPDE builds, DS1.11 is a trusted Ferodo race brake pad with a strong reputation for consistency. This DS1.11 features stable braking performance, excellent modulation, and durability in demanding track conditions. Compared with more street-focused compounds, DS1.11 is better suited to aggressive lapping, endurance sessions, and drivers who value a progressive pedal feel. Exceptional fade resistance for track use Long wear characteristics in endurance-style driving Progressive, controllable pedal feel Excellent choice for HPDE and racing applications Best for: drivers looking for a track brake pad with durability, modulation, and high-temperature stability for repeated hard use. Note: DS1.11 is a race compound and is not ideal for customers seeking low noise, low dust, or refined street manners. Ferodo DS2500 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. The Ferodo DS2500 is one of the most popular performance brake pad compounds for drivers who want strong braking on the street and dependable performance at the track. If you are looking for a street and track brake pad with excellent cold bite, low noise, and impressive fade resistance, the DS2500 is a proven choice. The DS2500 delivers confident pedal feel, consistent stopping power, and better high-temperature performance than typical street pads. It is an excellent option for spirited driving, autocross, HPDE, and dual-purpose performance cars. Strong cold bite for street use Low noise when properly bedded Excellent fade resistance for a dual-purpose pad Great match for performance street tires Ferodo part number: {{part_number}} Best for: drivers who want a versatile Ferodo brake pad for daily driving, canyon runs, and light to moderate track use without giving up refinement. Note: DS2500 is a race-derived compound and may produce more dust than an ordinary OEM street pad. Ferodo DS3000 Compound Details The predecessor to DS1.11, DS3000 offers high initial bite with excellent feel and release. Popular among rally teams, DS3000 has a relatively low cold temperature threshold while still offering high temp stability for tarmac. DS3000 is very easy on discs at the expense of pad wear. Ferodo FCP1308 Comparison Chart Out of all the pad compounds we've ever tested, from all manufacturers, the Ferodo DS3.12 shows the flattest torque curve across the broadest temperature range. That means 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 (µ) than Ferodo's other compounds, so not as much pedal pressure is required to initiate the desired response. It is also un-fadable, showing no drop in performance at any temperature your brakes will ever see. Ferodo FCP1308 Coefficient of Friction (Mu) Comparison Chart In dyno testing, the Ferodo DS3.12 has shown superior wear rates to the other Ferodo compounds, while remaining kind to brake rotors. We believe the Ferodo DS3.12 will become the gold standard by which other race compounds will be judged. Ferodo FCP1308 Operating Temperature Comparison Chart **Designed for use with iron brake rotors only. Not for use with carbon-ceramic rotors.**

Ferodo FCP4955 Brake Pads Ferodo FCP4955 Brake Pad Fitment Guide Make Model Engine / Version Years Front Pad Shape Rear Pad Shape Porsche 911 (991) Carrera / Carrera 4 3.4 2011+ / 2012+ FCP4805 / FCP4955 FCP4424 / FCP4713 Porsche 911 Convertible (991) Carrera / Carrera 4 3.4 2012+ FCP4805 / FCP4955 FCP4424 / FCP4713 Porsche 911 Targa (991) Carrera 4 3.4 2014+ FCP4805 / FCP4955 FCP4424 / FCP4713 Porsche 911 (991) Carrera S / Carrera 4S 3.0 2015+ FCP4955 FCP4713 Porsche 911 Convertible (991) Carrera S / 4S 3.0 2015+ FCP4955 FCP4713 Porsche 911 Targa (991) Carrera 4S 3.0 2015+ FCP4955 FCP4713 Porsche 911 (991) Carrera S / Carrera 4S / GTS 3.8 2011+ FCP4955 FCP4713 Porsche 911 Convertible (991) Carrera S / 4S / GTS 3.8 2012+ FCP4955 FCP4713 Porsche 911 Targa (991) Carrera 4S / 4 GTS 3.8 2014+ FCP4955 FCP4713 Designed for use with iron brake rotors only. Not for use with carbon-ceramic rotors. Ferodo Compound DS3.12 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 handle those demands. Ferodo Compound DS1.11 The DS1.11 has a lower mu than the DS3.12 at all temperatures and can be characterized as a moderate mu pad vs. other endurance racing compounds. They require more pedal force than the DS3.12, and they have a slightly declining torque curve as temperatures rise. As they get hotter and you dive deeper into a turn, you may feel like you need to push a little harder on the brake pedal to elicit the same response (which is a feel many drivers actually prefer). Some drivers feel that the DS1.11 is more controllable on street tires than DS3.12 since ABS cannot be activated as easily. It will last a fairly long time vs. many other pad compounds on the market but does not last quite as long as the DS3.12. They are very gentle on discs at track temperatures when a proper pad transfer layer is maintained. The DS1.11 also has an outstanding max temp and fade resistance, just not quite as high as 3.12. We're not aware of anyone who has faded them, and most people differentiate between the DS1.11 and DS3.12 based on feel. Ferodo Compound DS2500 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 11 FCP4955 Comparison Chart Out of all the pad compounds we've ever tested, from all manufacturers, the Ferodo DS3.12 shows the flattest torque curve across the broadest temperature range. That means 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 (µ) than Ferodo's other compounds, so not as much pedal pressure is required to initiate the desired response. It is also un-fadable, showing no drop in performance at any temperature your brakes will ever see. Ferodo 11 FCP4955 Coefficient of Friction (Mu) Comparison Chart In dyno testing, the Ferodo DS3.12 has shown superior wear rates to the other Ferodo compounds, while remaining kind to brake rotors. We believe the Ferodo DS3.12 will become the gold standard by which other race compounds will be judged. Ferodo 11 FCP4955 Operating Temperature Comparison Chart

Pagid Racing Brake Pad Shape 4908 Pagid 4908 Brake Pad Fitment Guide Make Model Build (Year) Front Rear Porsche 991 3.4 Carrera [ceramic brakes] 12 - 19 X Porsche 991 3.8 Carrera S [ceramic brakes] 12 - 19 X Porsche 991.2 3.0 Carrera [ceramic brakes] 16 - 19 X Porsche 991.2 3.0 Carrera S [ceramic brakes] 16 - 19 X Porsche 991.2 3.0 Carrera S [iron brakes] 16 - 19 X Porsche 991.2 3.0 Carrera GTS [iron brakes] 17 - 19 X Porsche Cayman S [981] [ceramic brakes] 13 - 25 X Porsche 718 Cayman [982C] [ceramic brakes] 16 - 25 X Porsche 718 Cayman S [982C] [ceramic brakes] 16 - 25 X Porsche 718 Cayman T [982C] [ceramic brakes] 19 - 25 X Porsche 718 Cayman GTS [982C] [ceramic brakes] 17 - 20 X Porsche 718 Cayman GTS 4.0 [982C] [ceramic brakes] 20 - 25 X Porsche 718 Boxster [982] [ceramic brakes] 16 - 25 X Porsche 718 Boxster S [982] [ceramic brakes] 16 - 25 X Porsche 718 Boxster T [982] [ceramic brakes] 19 - 25 X Porsche 718 Boxster GTS [982] [ceramic brakes] 17 - 20 X Porsche 718 Boxster GTS 4.0 [982] [ceramic brakes] 20 - 25 X Porsche 718 Spyder [982] [ceramic brakes] 19 - 25 X Porsche 718 Cayman T [982C] [ceramic brakes] 19 - 25 X Pagid Racing Brake Pads are engineered for high-performance driving, delivering exceptional stopping power, durability, and control under the most demanding conditions. Trusted by professional racers and performance enthusiasts worldwide, these pads are crafted using advanced friction materials and cutting-edge technology to ensure consistent performance, low fade, and excellent modulation. Whether you're on the track or tackling aggressive street driving, Pagid Racing Brake Pads provide the reliability and confidence you need to push your vehicle to its limits. Pagid Racing Brake compounds are for steel (cast iron) rotors only unless otherwise noted. RSL 29 Compound The Pagid RSL 29 (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. Pagid RSC 1 Compound (Ceramic Rotors Only) A race and track day compound for all known types of ceramic brake discs, RSC 1 is a low metallic resin bonded material containing steel and aramid fibers. This material features good all-round characteristics and is suitable for all types of usage. Pagid RSC 3 Compound (Ceramic Rotors Only) RSC 3 is a low metallic resin bonded material containing steel fibers. This material is specifically developed for above mentioned applications. It is a special race compound for ceramic discs with low content of fibers in the friction surface for sprint and endurance circuit racing. Pagid RSL 1 Compound Used in GT cars, touring cars and prototype endurance racing. Due to the high friction and good modulation, often used in sprint races as well. RSL 1 is a low metallic resin bonded material containing steel and aramid fibers with very high heat resistance. It maintains a constant friction level over a wide range of temperatures. Its reduced wear rate and disc friendliness make this material appropriate for endurance races. Pagid RST 1 Compound Used in Rally tarmac, GT cars and touring cars circuit racing (sprint), high down-force formula cars, NASCAR. Suitable for applications in heavy cars and where high torque is necessary against small diameter rotors. RST 1 has a very high friction level and high temperature resistance. It is a semi-metallic resin bonded material containing steel fibers. Cold friction and initial bite makes this material most appropriate for Rally and NASCAR applications. Pagid RST 3 Compound RST 3 is a medium-high friction metal-ceramic compound containing steel fibers and is therefore the perfect complement of the RST product family. It captivates by its low heat conductivity. Rally tarmac and gravel, GT cars, touring cars and prototype circuit racing, formula cars and club racing. Wide range of applications due to it‘s combination of bite, friction and controllability.

AP Racing 410x36mm Two-Piece Front Floating Racing Brake Rotors Fit The Following Cars (w/ OEM PCCB Rotors) Porsche 991 Turbo/TurboS PCCB (Front) Porsche 718 GT4/Spyder PCCB (Front) Sold/priced per pair. AP Racing by Essex 2-piece Competition J Hook front iron disc pair for 991 Turbo/TurboS and 981/718 GT4/Spyder to replace PCCB discs. 410x36mm (16.14" x 1.40") Huge increase in airflow, cooling capacity, and durability vs. OEM PCCB discs Drastically less expense long-term running costs vs. PCCB Must use the standard front 991 GT3/RS pad shape used in OEM iron system (not compatible with OE PCCB pad shape) Over twice as many internal cooling vanes as the OEM PCCB's Weighs almost the same as the OEM 380x34mm iron discs, despite much larger size Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers and wheels, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips 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 390x32mm 2-piece J Hook Rear Brake Rotors - Porsche (OEM PCCB) Fit The Following Cars (w/ OEM PCCB Rotors) Porsche 991 Turbo / TurboS (Rear) Porsche 981/718 GT4/Spyder (Rear) Sold/priced per pair. AP Racing 2-piece Competition J Hook rear iron disc pair for 991 Turbo/TurboS and 981/718 GT4/Spyder to replace PCCB discs. 390 x 32mm (15.35" x 1.26") Huge increase in airflow, cooling capacity, and durability vs. OEM PCCB discs Drastically less expense long-term running costs vs. PCCB Must useGT3/RS Iron disc pad shape used in OEM iron system (not compatible with OE PCCB Pad shape) Allows normal function of OEM parking brake 100% more internal cooling vanes vs the OEM PCCB's Same weight as OEM 380 x 34mm iron discs, despite larger size Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers and wheels, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips 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.

A1-122 Girodisc Two-Piece 350mm Front Brake Rotors (Discontinued Design) FITMENT: Porsche Carrera S 991.2 Porsche Carrera 4S 991.2 Porsche Carrera GTS 991.2 Discontinued New old stock rotor.  These have the straight grooves as images show, not the new curved grooves.  Final Sale, no returns or exchanges. This Girodisc system is a direct replacement for OEM Porsche steel (cast iron) rotors1 with the use of the provided caliper spacers. The Girodisc rotors are slightly larger than the stock Porsche rotors at 350mm vs. 340mm, providing greater braking force and cooling capacity. The Girodisc front rotors are approximately 21.0 lbs. vs. 24.4 lbs. for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. 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. 1 Note: this Girodisc kit does not fit Porsche models with factory PCCB brakes.