992 Carrera S/4S/GTS

Race Technologies Rear Brake Pad 2425 Fitment Guide For Race Technologies 2425 Brake Pad Make Model Build (Year) Front Rear Porsche 991 3.4 Carrera [ceramic brake caliper with RBD cast iron disk ] 11 - X Porsche 991 3.4 Carrera [ceramic brakes] 11 - 15 X Porsche 991 3.8 Carrera S [ceramic brake caliper with RBD cast iron disk] 11 - X Porsche 991 3.8 Carrera S [ceramic brakes] 11 - 15 X Porsche 991 3.8 Carrera S / GTS [iron brakes] 11 - 15 X Porsche 991.2 3.0 Carrera [ceramic brakes] 15 - X Porsche 991.2 3.0 Carrera S [ceramic brakes] 15 - X Porsche 991.2 3.0 Carrera S [iron brakes] 15 - X Porsche 991.2 3.0 Carrera GTS [iron brakes] 17 - X Porsche 992 3.0 Carrera [iron brakes] 18- X Porsche 992 3.0 Carrera S [iron brakes] 18- X Porsche 992 3.0 Carrera 4S [iron brakes] 18- X Porsche Panamera [cast iron & ceramic brakes] 09 - 16 X Race Technologies 2425 Rear Brake Pads The Race Technologies 2425 rear brake pad is a high-performance pad shape designed for Porsche braking systems used in demanding street, HPDE, track day, club racing, and motorsport applications. Available in Race Technologies RE10 and TS20 compounds, the 2425 gives Porsche drivers the ability to select a friction material matched to their vehicle, driving environment, and braking demands. The 2425 is used as a rear brake pad on select Porsche 991, 991.2, and 992 Carrera applications, including vehicles equipped with specific iron and ceramic brake configurations. Because Porsche brake systems can vary by model, year, and brake option, always confirm the 2425 pad shape and your vehicle's brake configuration before ordering. Race Technologies 2425 Brake Pad Specifications Pad Shape: 2425 Axle Position: Rear Available Compounds: RE10 and TS20 Applications: Select Porsche 991, 991.2, and 992 models Use: Street, HPDE, track day, club racing, and motorsport depending on compound Race Technologies 2425 Brake Pad Compound Comparison RE10 Racing Compound Race Technologies RE10 is an endurance-focused racing compound engineered for demanding track use. It combines strong stopping performance with low thermal conductivity and low pad and rotor wear, making it an excellent choice when consistency and durability over extended sessions are priorities. RE10 is particularly well suited to professional endurance racing, club racing, and demanding HPDE applications. It is a racing-use compound and is not intended as a street-oriented brake pad. Racing compounds may generate increased noise and dust when used outside their intended operating temperature range. TS20 Street and Track Compound Race Technologies TS20 is a dual-purpose performance compound designed for drivers who use their Porsche on the street as well as for HPDE and lighter track duty. TS20 provides an aggressive initial response with good resistance to heat while maintaining more street-friendly noise and dust characteristics than a dedicated racing compound. TS20 is an excellent option for drivers looking for increased braking capability without moving to a dedicated race-only friction material. Race Technologies 2425 Porsche Applications The Race Technologies 2425 pad shape fits the rear braking systems of select Porsche 911 Carrera models, including applications within the 991, 991.2, and 992 generations. Depending on model and year, applications include Carrera, Carrera S, Carrera 4S, and GTS models with specific iron or ceramic brake configurations. Porsche offered several brake configurations within these model ranges, so vehicle model alone should not be used to determine brake pad fitment. Compare the 2425 pad shape with your existing brake pad and verify your brake system before ordering. Choosing Between RE10 and TS20 Choose RE10 when the vehicle is primarily used for demanding track, club racing, or endurance applications where consistent braking performance and durability under sustained heat are priorities. Choose TS20 for performance street driving, HPDE, and lighter track use where strong braking performance needs to be balanced with more street-friendly characteristics. Brake pad performance can vary based on vehicle weight, tire grip, brake temperatures, track configuration, driving style, and brake system setup. Selecting the correct compound for the intended operating environment is important for both braking performance and component life. Shop Race Technologies 2425 Rear Brake Pads Competition Motorsport specializes in high-performance and racing brake components for Porsche street, track, and race cars. Select the Race Technologies RE10 or TS20 compound above, or contact our motorsports specialists for assistance confirming the 2425 pad shape, Porsche fitment, and the best compound for your driving application. Note: RE10 is a "racing use only" pad. Running a "racing use only" pad on the street could produce excessive noise and dust. Disc wear could be accelerated if driven at cold temperatures or used in the incorrect temperature range. Racing pads are designed to work in specific temperature ranges, so it's important to choose the right compound for the environment the vehicle will be used in. Pad compounds are run on a brake dynamometer over multiple brake applications ("stops") to test the materials in a controlled environment and obtain accurate data. Wear rates and operating temperatures can be influenced by car set-up, grip levels, track layout, and other variables.

Spiegler Stainless Brake Lines - Porsche Front and Rear 4 Line Kit Fitments include Most Porsche Spiegler 100% stainless brake lines for various Porsche models. Front 4 Line Kit that replaces the OEM caliper hard line and increases line length for easier pad changes. Allows for caliper removal without opening hydraulic connection or removing the bracket attached to the spindle. 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 Wide range of colors 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

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

Girodisc Titanium Brake Pad Shields Fitment: 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)

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

Girodisc Titanium Brake Pad Shields Fitment: 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)

PORSCHE PCCB FRONT CALIPER REBUILD KIT Track days can be especially hard on the piston seals and dust boots in your brake calipers. Heat, in particular, will do a number on them. (Titanium heat shields behind your pads can help with that.)  This kit is put together from the highest-quality components to rebuild a brake caliper back to like-new condition. One kit is required per caliper (we suggest doing them both as long as you're doing it).  Once you rebuild them, get the Ti heat shields as well and lengthen the interval between rebuilds.  The shields and seals are available as a kit for convenience (and a bit of savings). We only source superior quality brake components (brakes for track use are serious business); some kits don't take it as seriously.  Any questions give us a call, we're happy to help!

PORSCHE FRONT CALIPER REBUILD KIT Track days can be especially hard on the piston seals and dust boots in your brake calipers. Heat, in particular, will do a number on them. (Titanium heat shields behind your pads can help with that.)  This kit is put together from the highest-quality components to rebuild a brake caliper back to like-new condition. One kit is required per caliper (we suggest doing them both as long as you're doing it).  Once you rebuild them, get the Ti heat shields as well and lengthen the interval between rebuilds.  The shields and seals are available as a kit for convenience (and a bit of savings). We only source superior quality brake components (brakes for track use are serious business); some kits don't take it as seriously.  Any questions give us a call, we're happy to help!

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.

PORSCHE REAR CALIPER REBUILD KIT Track days can be especially hard on the piston seals and dust boots in your brake calipers. Heat, in particular, will do a number on them. (Titanium heat shields behind your pads can help with that.)  This kit is put together from the highest-quality components to rebuild a brake caliper back to like-new condition. One kit is required per caliper (we suggest doing them both as long as you're doing it).  Once you rebuild them, get the Ti heat shields as well and lengthen the interval between rebuilds.  The shields and seals are available as a kit for convenience (and a bit of savings). We only source superior quality brake components (brakes for track use are serious business); some kits don't take it as seriously.  Any questions give us a call, we're happy to help!

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.)