Carbotech CT1740 Performance & Racing Brake Pads Cobalt CT1740 Fits The Following Vehicles:   Porsche 918 Spyder (2013+), Rear Porsche 991 GT3 (2013+), Rear Porsche 991 GT3RS (2015+), Rear Porsche 991 Turbo (2013+), Rear Porsche Cayman GT4 (2016+), Rear Porsche Cayman GT4RS (2021+), Rear Precision braking starts here. The Carbotech CT1740 brake pads offer world-class stopping power across a range of compounds engineered for HPDE, club racing, time trials, and daily driving. Whether you're shaving tenths at a national event or building consistency during weekend track days, there's a Carbotech compound tailored to your performance goals. Manufactured in the USA using Carbotech’s proprietary ceramic and metallic formulations, these pads deliver unmatched modulation, rotor friendliness, and fade resistance. Friction materials have evolved significantly over the years. Brake pads were originally made with organic ingredients such as asbestos and carbon, held together by a strong resin. Most brake pads sold today are considered semi-metallic, semi-metallic brake pads use brass, copper, and steel wool shavings held together by a resin. Unfortunately, the main drawback about the use of steel strands, iron, graphite, and small amounts of filer and friction modifiers (used to provide strength and conduct heat away from the rotors) is that the metal shavings and iron must rub against steel rotors every time the brakes are applied. This generates more noise and is a lot more abrasive on the rotors. It also creates corrosive dust that can damage your braking system as well as the paint on your wheels and car. Friction materials that contain Ceramic Kevlar formulations have become recognized for their desirable blend of traits. This allows the Ceramic Kevlar pads to handle higher brake temperatures with less heat fade, and provide faster recovery after heavy braking. It also reduces brake dust and makes wheel maintenance easier! Ceramic Kevlar compounds extend brake life compared to most other semi-metallic and organic materials, and at the same time they outlast other premium pad materials by a significant margin, without compromising in noise control, pad life, and all around braking performance. The CT1740 shape fits a variety of high-performance applications, making it a go-to solution for drivers looking for track day brake pads that match their skill level and intensity. Carbotech CT1740 Brake Pad Highlights Multiple compounds available to match driving style and track conditions Fade-resistant ceramic-metallic formulations designed for extreme temperature stability Rotor-friendly design ensures longer disc life and reduced operating costs Made in the USA with race-proven quality and compound development Perfect for HPDE, time trials, autocross, club racing, and pro-level motorsports Available Compounds for the Carbotech CT1741 Brake pad 1521: street compound designed for spirited street driving. Low dust and quiet operation with high initial bite.  1521 friction coefficient rated at 0.47. AX6: Autocross-focused compound offering more initial bite than 1521. Great for Solo and light-duty track use where cold bite matters. AX6 friction coefficient rated at 0.50. RP2: Ideal for racers seeking durability and rotor life in endurance club racing. Very low wear rates and excellent release characteristics. RP2 friction coefficient rated at 0.50. XP8: Entry-level race compound perfect for advanced HPDE and club racing. Consistent torque and excellent modulation under high heat. XP8 friction coefficient is rated at 0.56. XP10: Mid-tier race pad with higher bite and fade resistance than XP8. Excellent for time trials, wheel-to-wheel racing, and aggressive HPDE. XP10 friction coefficient is rated at 0.60. XP12: Designed for heavier cars or high-speed tracks. High torque levels and consistent performance across wide temperature ranges. XP12 friction coefficient is rated at 0.65. XP20: Ultra-high torque and friction. For drivers who demand maximum stopping power in pro-level racing environments.  XP20 friction coefficient rated at 0.68. XP24: Highest friction compound in the Carbotech lineup. Built for pro racing applications requiring peak performance and extreme heat tolerance. XP24 friction coefficient rated at 0.70. Carbotech 1521 The Carbotech™ 1521™ is a high-performance street compound. The 1521™ compound is known for its release and modulation, along with unmatched rotor friendliness. 1521™ is also a low dust and low noise compound with an excellent initial bite. This compound's excellent linear torque production provides incredible braking force without ABS intervention. Carbotech™ 1521™ operating range starts out at ambient and goes up to 800°F (426°C+). 1521™ is suitable for ALL street cars, perfect for your tow vehicle or fleet vehicle. Carbotech™ 1521™ is NOT recommended for track use. Carbotech AX6 The AX6™ is specifically engineered for Autocross applications. A high-torque brake compound delivering reliable and consistent performance over a wide operating temperature range of 50°F to 1000°F + (10°C to 537°C+). The advanced compound matrix provides an excellent initial bite, high coefficient of friction at lower temperatures along with very progressive brake modulation and release characteristics. NOT FOR STREET USE! Carbotech RP2 The RP2™ compound was engineered for endurance racing based on our highly successful XP™ Series formulations. RP2™ has a strong initial bite, a little less modulation than our XP12™, but still maintains the rotor friendliness of our XP™ series compounds. RP2™ has great fade resistance with a temperature range of 250°F to 1450°F+ (121°C to 787°C). RP2™ is as rotor friendly as our XP™ series compounds. NOT FOR STREET USE! Carbotech XP8 A high torque brake compound with a wide operating temperature range of 200°F-1250°F+ (93°C to 676°C+). Carbotech™ XP8™ is their first racing compound. It provides good initial bite at race temperatures, high coefficient of friction, excellent modulation, and release characteristics. XP8™ offers extremely high fade resistance and is very rotor friendly. It's perfect for track day use with any tire.  NOT FOR STREET USE! Carbotech XP10 When Carbotech™ unleashed the XP10™ it immediately gathered multiple regional, divisional, and national championships. The XP10™ has a strong initial bite with a coefficient of friction and rotor friendliness unmatched in the industry. Fade resistance is in excess of 1475°F (801°C). XP10™ still maintains the highly-praised release, excellent modulation and rotor friendliness that have made all Carbotech™ compounds so successful. NOT FOR STREET USE! Carbotech XP12 Another highly successful XP™ series compound with an excellent initial bite, torque and fade resistance over and above the XP10™ compound. XP12™ has a temperature range of 250°F to 1850°F+ (121°C to 1010°C+). The XP12™ has that excellent Carbotech™ release and modulation that has made all other Carbotech™ compounds so successful. The XP12™ is more rotor aggressive than XP10™ but compared to the competition the XP12™ is still very rotor friendly. NOT FOR STREET USE! Carbotech XP20 XP20™ is the latest iteration of the highly successful XP™ series of compounds.  With an extremely aggressive initial bite, linear torque curve and excellent fade resistance the XP20™ is a major step in a progression of the XP™ series of compounds from Carbotech™. XP20™ has a temperature range of 275°F to 2000°F+ (135°C to 1093°C+). Carbotech™ XP20™ maintains our tradition of having the outstanding release and modulation that has made all other Carbotech™ compounds so successful.  NOT FOR STREET USE! Carbotech XP24 XP24™ is the pinnacle compound of the extremely successful XP™ Series of compounds engineered by Carbotech™. This compound is based on the same fundamentals that exist in all other Carbotech™ formulations. XP24™ has even more initial bite, more overall bite, and more torque along with the most linear torque curve we have ever offered. The thermal characteristics are of the highest Carbotech™ offers along with one of the highest coefficient of friction ratings offered by anyone in the braking industry. This compound is the longest wearing compound Carbotech™ offers as it was originally engineered for endurance applications at the highest pro racing levels. This revolutionary new compound has been extremely successful with an open wheel, closed wheel, sprint, and endurance applications. XP24™ has a temperature range of 400°F to 2000°F+ (204°C to 1093°C+). NOT FOR STREET USE! Carbotech CT1740 Frequently Asked Questions (FAQ) 1. Which Carbotech compound is best for daily driving? 1521 is ideal for spirited street use with minimal dust and noise.. 2. What’s the best compound for beginner HPDE drivers? XP8 is a great starting point for advanced HPDE, offering strong bite and fade resistance without being overly aggressive. 3. Can I mix Carbotech compounds front and rear? Yes, many drivers use a more aggressive compound in the front (e.g., XP12) and a slightly less aggressive one in the rear (e.g., XP10) to fine-tune balance. 4. Are Carbotech pads hard on rotors? No. All Carbotech compounds are known for being rotor-friendly, helping reduce rotor wear and operating costs. 5. Which compound is best for endurance racing? RP2 is engineered specifically for long-distance events where pad and rotor life are just as important as torque output. 6. Do Carbotech pads require special bedding procedures? Yes. A proper bedding-in process is critical for optimal performance. Carbotech provides detailed bedding instructions with every set of pads. Carbotech Brake Pad Bedding Procedures The bedding process transfers friction material from the pads into the pores of the brake rotor. It also matches the microscopic contours of the pads and rotors to increase surface contact. Proper bedding of pads & rotors will result in greater performance, longer pad life & less rotor wear. Failure to properly bed in your pads could lead to friction materials chunking and breaking up. This could also lead to overheating your pads and causing them to glaze over resulting in the car not being able to stop or slow fast enough. All new brake pads require a bedding process. The proper way to bed your brake pads and brake discs (rotors) is to bed them on the racetrack, NOT on the street. Start this process by pumping your brakes a few times to assure proper installation. Once on track perform several moderate (medium) near stops (to a very slow rolling speed) to thoroughly warm up the pads and rotors. This should take 1-2 laps. This allows a thin layer of the pad material to be transferred into the micro-grooves of the rotor. After the pads/rotors are warm, perform a series of hard near stops (to a slow rolling speed) until some brake fade is felt. This process should take about 2-4 laps (depending on the track). Once this occurs, then stay off the brakes (as much as possible) and bring your car into the pits/paddock to completely cool. Do not lock the tires during this operation. Allow brake pads and/or rotors cool down to ambient temperatures; no less than 30 minutes. The total bedding procedure should not take more than 5-6 laps or about 10-15 minutes. Failure to properly bed in your pads could cause friction material to chunk and break up resulting in poor pad performance and pad life. Improper bedding can also lead to overheating your pads and causing them to glaze over, resulting in the car not being able to stop or slow properly.

Girodisc Brake Pad Spreader This indispensable tool is used by race teams, shops, and enthusiasts alike who have high performance four- and six-piston calipers. The Girodisc Brake Pad Spreader is designed to easily spread brake pads and pistons to facilitate quick replacement of pads and/or rotors in a shop or racing environment. No more screwdrivers, pliers, hammers, or C-clamps! This tool will retract the pistons fully and evenly into their bores with one squeeze of the levers. The Girodisc Brake Pad Spreader was designed to be used with popular racing brake calipers from Brembo, AP Racing, Alcon, and other performance calipers in racing and road use. To help it fit into any caliper, the amount of throw is adjustable. Insert the spreading plates one way for wider six-piston calipers, then turn the spreader 90o and use the plate sides for four-piston calipers. The Girodisc Brake Pad Spreader is made from heavy-gauge steel, powder-coated for durability. The slider is cadmium-plated, and nylon pivot bushings ensure smooth action. The Girodisc Brake Pad Spreader will quickly become an invaluable tool for any race team, shop, or enthusiast who changes pads and rotors frequently.

Girodisc Titanium Brake Pad Shields FITMENTS: Porsche 991, 992, GT4 (Front) The problem of brake fluid boiling is caused by braking heat transferring from the rotors and pads directly into the fluid through the caliper pistons. When brake fluid boils, it releases air that is normally part of the molecular structure of the fluid. This air is compressible, of course, so brake pedal pressure compresses this air instead of pushing brake fluid and moving the caliper pistons. The brake pedal goes to the floor. Production street cars tend to suffer from this on track days because they don't have the extensive cooling ducts and exotic brake materials found on race cars. Race-only brake calipers generally come with titanium caliper pistons for one reason: titanium has very low thermal conductivity, which means it's bad at transferring heat. That's good if you're trying to keep your brake fluid from boiling. Here's a comparison of materials and their relative thermal conductivity ratings in Watts per meter-Kelvin (lower is better): Titanium 6AL-4V = 6.7 W/mK Steel = 52 W/mK Aluminum = 130 W/mK Most fixed calipers use aluminum pistons which are, unfortunately, excellent at transferring braking heat to your brake fluid. Our solution is to place Girodisc's thin titanium shims between each brake pad and the caliper pistons. This helps prevent braking heat from transferring into the pistons and, thus, into the fluid. For cars that are going to see hard driving or multiple track days, these shims are affordable protection against losing your brake pedal at the worst possible time, making your track day very expensive. Water-jet cut to exact size, so there's no cutting, grinding, or swearing involved. Price is per axle (four shims)

Girodisc Titanium Brake Pad Shields FITS: Porsche 991, 992, GT4 Rear The problem of brake fluid boiling is due to heat transferring from the rotors and pads directly into the fluid through the caliper pistons. When brake fluid boils, it releases air that is normally part of the molecular structure of the fluid. This air is compressible, of course, and the brake pedal goes to the floor instead of moving the caliper pistons. Production cars tend to suffer from this on track days because they don't have the extensive cooling ducts and exotic brake materials found on race cars. Race-only brake calipers generally come with titanium caliper pistons for one reason: titanium has low thermal conductivity. This means it's very bad at transferring heat, which is good if you're trying to keep your brake fluid from boiling. Here's a comparison of materials and their relative thermal conductivity ratings (lower is better):   Titanium 6AL-4V = 6.7 W/mk Steel = 52 W/mk Aluminum = 130 W/mk   Most fixed calipers use aluminum pistons which are, unfortunately, excellent at transferring braking heat to your brake fluid. Our solution is to place Girodisc's thin titanium shims between the brake pad and the caliper pistons. This helps prevent braking heat from transferring into the pistons and, thus, into the fluid.  For cars that are going to see hard or multiple track days, these shims are affordable protection from losing your brake pedal at the wrong time and making your track day very expensive. Water jet cut to exact size; no cutting, grinding, or swearing involved. Price is per axle (four shims)

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.

AP Racing Radi-CAL R4 Racing Brake Fluid Among the Highest Dry Boilings Point On The Market Today AP Racing Radi-CAL R4 racing brake fluid has an ultra-high typical dry boiling point, at 644º F / 340º C. Radi-CAL R4 racing brake fluid has been designed to perform better than any other product at the extremes of heavy-duty braking in top levels of professional racing. AP Racing Radi-CAL R4 has outstanding resistance to vapor lock and pedal fade under the most exacting conditions. A higher vapor lock point means a firmer brake pedal at the extremes of brake temperatures. Enhanced lubricity means R4 is a better lubricant than other market-leading racing brake fluids. This helps extend the life of the metal moving parts in your brake system while increasing system efficiency. Radi-CAL R4 can be mixed with other DOT 3 and DOT 4 racing brake fluid, although for maximum performance your braking system should be thoroughly purged with R4 fluid. AP Racing Radi-Cal Pro R4 Brake Fluid Details: Manufacturer: AP Racing Manufacturer part number: AP-CP7005 DOT rating: DOT 4 Dry Boiling Point: 644º F / 340º C Wet Boiling Point: 383º F / 195º C Bottle Size: 500 ml (16.9 fl. oz.)

CMS Performance RF1 DOT4 Racing Brake Fluid Real Life 622º Boiling Point Without the Real High Price RF1 Racing Brake Fluid from CMS Performance is a fully-synthetic DOT4 brake fluid formulated to provide extraordinary performance under the most demanding high-temperature racing and track-day conditions. With a dry boiling point of 622º F / 328º C, RF1 exceeds all DOT 3 & DOT 4 requirements and is compatible with all DOT 3, DOT 4, and DOT 5.1 fluids. Note: RF1, like all DOT 4 brake fluids, is not compatible with DOT 5 silicone-based or any mineral-based brake fluids. On the race track, there is perhaps no single safety system more important than your brakes. No single part of that system is more critical than brake fluid, given the extraordinarily high temperatures it operates under. At CMS Performance, we got tired of (and a little nervous) using "racing" brake fluid at the race track that didn't live up to its claimed performance when things got hot. We found more than a few brands whose product was all hype and not high performance. No Hype. All Performance. No Kidding. So we did something about it. CMS Performance RF1 is manufactured in partnership with Orthene, maker of the also-excellent Halo P1 racing brake fluid and a brake fluid supplier to many racing teams in Formula 1, WEC, and other professional series. RF1 was formulated to maintain consistent viscosity, lubricity, and compressibility at the extreme system temperatures and line pressures found in racing and track days. The bottom line is this: you can spend a lot more on brake fluid, but it's hard to find higher-performance than RF1 Racing Brake Fluid. CMS Performance RF1 Racing Brake Fluid Details: Manufacturer: CMS Performance Manufacturer part no.: CMSRF1 Typical dry boiling point: 622º F / 328º C Typical wet boiling point: 399º F / 204º C Exceeds DOT 3 & DOT 4 standards Bottle size: 500 ml (16.9 fl. oz.) Click Here for Product MSDS Sheet A Word About Flushing Brake Fluid All brake fluid degrades over time (not mileage), attracting water as it ages, which, at high brake temperatures, can lead to fluid boil and brake fade or failure. That's why the "wet" (aged) boiling point of any brake fluid is substantially lower than the "dry" (new) boiling point. To maintain maximum braking performance, Competition Motorsport strongly suggests replacing your brake fluid before every track event, but at least every three months if you're consistently racing and/or driving at track days. It's cheap insurance against learning about brake fade the hard way!