718 Cayman GT4

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 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 superior 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 (e.g., DOT 5) and is compatible with most factory brake systems and fluids.  Always follow vehicle manufacturer's recommendations when adding 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 20oz 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.

CMS Performance RF1 DOT4 Racing Brake Fluid Real-Life High 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 328º C (622º F), RF1 exceeds all DOT3 & DOT4 requirements and is compatible with all DOT 3, 4, and 5.1 fluids. (Not compatible with DOT5 or mineral-based brake fluids.) On the race track, brake systems operate at very high sustained temperatures, and there is perhaps no single safety system more important in racing than your brakes. No single part of that system is more critical than brake fluid. 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. So we did something about it. Manufactured in partnership with Orthene, the brake fluid supplier to many teams in Formula 1, WEC, and other professional series, RF1 Racing Brake Fluid 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 more on brake fluid, but you can't buy higher-performance than RF1 Racing Brake Fluid. RF1 Racing Brake Fluid Details: Typical dry boiling point: 328º C (622º F) Typical wet boiling point: 204º C (399º F) Exceeds DOT3 & DOT4 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!