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Porsche 991 GT3 Cup Front Rotors (380x32) The Girodisc system is a direct replacement for the OE front rotors on the Porsche 991 GT3 Cup car. No modifications are required—these lightweight 2-piece floating rotors bolt directly to the car and work seamlessly with factory calipers. Designed for the demands of professional motorsport, Girodisc rotors deliver superior cooling, durability, and braking precision under the harshest track conditions. Built for Competition-Level Performance Girodisc 380x32mm rotors are engineered and machined entirely in the USA from the highest-quality materials. The aluminum hat is CNC-machined from 6061-T6 aircraft-grade alloy for weight savings and strength. The iron rotor rings are made from Girodisc’s proprietary high-carbon alloy, poured and machined in-house for exacting balance and heat resistance. The curved vane design acts as a centrifugal pump, drawing air through the disc to reduce fade and maintain consistent braking throughout long races. A1-238 Girodisc 380mm 2pc Front Brake Rotor Vehicle Fitment Porsche 911 GT3 Cup (991.1 & 991.2) Porsche 911 GT3 R (for equivalent front setup) A1-238 Girodisc 380mm 2pc Front Brake Rotor Features Direct OEM Replacement: Bolts directly to factory hubs and calipers—no modifications needed. 380x32mm Rotor Size: Provides greater surface area and heat capacity for endurance-level braking. Lightweight Two-Piece Design: Reduces unsprung and rotational mass to improve cornering response and acceleration. Curved Vane Internal Cooling: Directional vanes act as centrifugal pumps, pulling cool air through the disc to reduce temperatures and extend pad life. Floating Mount System: Twelve high-strength alloy drive pins with anti-noise spring washers allow the rotor to expand under heat while preventing rattle. Replaceable Rings: The aluminum hats are reusable—only replace the iron rings when worn. Made in the USA: Designed, cast, machined, and assembled domestically to the highest racing standards. A1-238 Girodisc 380mm 2pc Front Brake Rotor FAQs Do these rotors fit OEM calipers? Yes, they fit directly with the factory Porsche Motorsport calipers. Can they handle endurance racing? Absolutely. Girodisc rotors are built to survive repeated high-temperature cycles during endurance and sprint events. What makes Girodisc better than OEM? They offer reduced weight, better cooling, and replaceable rotor rings, saving long-term maintenance costs. Are they sold as a pair? Yes, Girodisc rotors are sold and priced per pair. Enhance your Porsche 991 GT3 Cup’s braking performance with Girodisc’s 380x32mm 2-piece floating rotors. Designed for uncompromising race performance, these rotors deliver cooler operation, consistent pedal feel, and lasting durability for the most demanding track conditions.

A2-272 Girodisc Porsche 992 GT3, 718 GT4 RS Rear Rotors Direct‑replacement 2‑piece rear rotors for the 992 GT3/GT3RS and 718 GT4 RS. Bolt‑on fit with factory calipers and pads; floating design controls heat and mass for consistent performance. A2-272 Girodisc Porsche Rear Rotor Vehicle Fitment Porsche 992 GT3/GT3RS – Rear (OEM iron brake cars) Porsche 718 Cayman GT4 RS – Rear Design & Cooling High‑carbon iron rings with curved vanes improve airflow and heat capacity. 6061‑T6 aluminum hats are reusable; spring‑preloaded hardware manages thermal growth while minimizing noise. A2-272 Girodisc Porsche Rear Rotor Features Direct OE replacement; no modifications required 2‑piece floating construction Reusable hats; ring‑only service Sold/priced per pair

Girodisc  Rear Brake Rotors – Porsche 991 GT3 Cup Car The Girodisc A2-238 Rear Rotor Set (380x30mm) is a direct replacement for the OE cup car discs used on the Porsche 991 GT3 Cup. Engineered for performance and reliability under extreme track conditions, these rotors bolt directly to your car and work seamlessly with the original calipers and ABS system—no modifications required. Race-Proven Two-Piece Design Each Girodisc rotor is designed and manufactured in the USA with precision components to ensure durability and superior thermal management. The central hat section is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the outer ring is made from Girodisc’s proprietary cast iron alloy, poured and machined entirely in-house. The curved vane design actively pumps cooling air through the disc, reducing temperatures during intense braking to prevent fade and warping. A2-238 Girodisc 380mm 2pc Rear Brake Rotor Features • Direct replacement for OEM Porsche 991 GT3 Cup rear discs (380x30mm)• Two-piece floating rotor design for optimal heat management• 6061-T6 aluminum hats machined from U.S.-sourced billet• Proprietary cast iron rotor rings with curved vane cooling geometry• 12 high-strength alloy steel drive pins with cadmium plating• Anti-noise spring washers eliminate rattle while maintaining full float• Class 12.9 hardware and hardened washers for secure mounting• Significantly reduces unsprung and rotational mass• Reusable hats—replace only rings when worn• Sold/priced per pair• Optional center-lock drive pin kit available A2-238 Girodisc 380mm 2pc Rear Brake Rotor Vehicle Fitment • Porsche 991 GT3 Cup (All model years) – Rear• Fits OEM calipers and ABS• Center-lock wheel option available upon request A2-238 Girodisc 380mm 2pc Rear Brake Rotor FAQs Do these rotors fit directly without modifications? Yes. The Girodisc A2-238 system is a direct bolt-on replacement for OEM rear discs on the 991 GT3 Cup. What is the advantage of a two-piece floating rotor? The floating design allows the iron rotor ring to expand under heat without stressing the aluminum hat, improving performance, reducing weight, and preventing cracking or distortion. Can I reuse the aluminum hats? Yes. Once the cast iron rings wear out, you can replace just the rings and retain the existing hats and hardware. Do these rotors make noise? No. The use of anti-noise spring washers ensures quiet operation even when cold, while maintaining true floating capability under heat. Are these rotors sold individually? No. The Girodisc A2-238 rotors are sold as a pair for the rear axle. Is a center-lock version available? Yes. Girodisc offers a specific drive pin option for vehicles equipped with OEM center-lock hubs—select this option when ordering. Enhance your Porsche 991 GT3 Cup’s braking performance with the Girodisc A2-238 2-Piece Rear Brake Rotors (380x30mm)—precision-engineered, race-proven, and built to handle the most demanding conditions on track.

Sparco Superleggera Driver Race Suit The Sparco Superleggera race suit is the lightest FIA 8856-2018 approved suit on the market. The Superleggera is not only lightweight but it is also one of the most comfortable Sparco race suits available. It features a special 4-way stretch panel that runs from the underarm down to the hip. Those side stretch panels combined with the rear stretch panel give ultimate mobility when in the seated positions. The Sparco Superleggera fire resistant auto race suit also has a breathable inner thigh stretch panel, 360 floating arm gussets and pre-curved arms and legs. The Sparco Superleggera auto race suit is FIA and SFI homologated. Sparco Superleggera Race Suit Details: FIA 8856-2018 and SFI 3.2A/5 approved Lightest FIA suit on the market Pre-curved arms and legs Lightweight zipper and collar Inner thigh stretch panel for exceptional comfort Four-way stretch panels

Acura NSX Front Rotors (Girodisc) – A1-174 Girodisc two-piece front rotors for the Acura NSX are a direct bolt-on upgrade that reduce unsprung and rotating mass, sharpen response, and improve cooling while maintaining factory brake bias and ABS performance. These rotors are compatible with cars originally equipped with iron or carbon-ceramic front rotors; note the pad shape requirement below. Pad shape note for carbon-ceramic cars For vehicles originally fitted with carbon-ceramic front rotors, you must switch to the D1405 front pad shape to use these rotors. Contact us if you need help selecting compatible pads. Features of Girodisc A1-174 Direct replacement for the OE front discs; no permanent modifications required. Two-piece construction with a US-sourced 6061-T6 aluminum hat and proprietary cast-iron disc for high thermal stability. Curved-vane internal design acts as a centrifugal pump to move cooling air through the rotor at speed. Floating mount system uses high-strength alloy steel drive pins with spring washers to allow controlled float, reduce noise when cold, and let the disc expand evenly under heat. Lower rotating and unsprung mass improves acceleration, steering feel, and suspension response. Factory brake bias and ABS calibration are preserved. Service-friendly design lets you replace only the iron rings when worn. What’s included One left and one right front rotor (sold and priced as a pair). FAQs: Acura NSX Front Rotors (Girodisc A1-174) Do these fit NSX models with carbon-ceramic front brakes? Yes. They fit both iron and carbon-ceramic applications, but carbon-ceramic cars must switch to the D1405 pad shape on the front calipers. Are any caliper spacers or brackets required? No spacers or brackets are required for installation with the factory calipers. Will these change pedal feel or ABS behavior? No. Rotor dimensions and effective radius are engineered to maintain factory bias and ABS operation while improving thermal capacity and weight. Are they noisy like some floating race rotors? The floating system uses spring washers to minimize rattle at low temperatures while still allowing thermal growth under heavy use. How do I service them later? When the friction rings wear out, you can replace just the iron rings and reuse the aluminum hats and hardware per manufacturer guidelines. Fitment and ordering Acura NSX front axle. Verify pad shape if converting from carbon-ceramic (use D1405 in front). Sold as a matched left and right pair under SKU A1-174.

Porsche 997 GT3 Cup 380x34mm Front Rotors Girodisc 2-piece floating front rotors are a direct, high-performance replacement for the factory discs on all Porsche 997.2 GT3 and GT2 models, including Cup applications. Designed to bolt directly to the car and work with OEM calipers, they allow continued use of unmodified factory pads—unlike most aftermarket solutions for this platform. This upgrade maintains factory brake bias and ABS function while reducing weight, improving cooling, and enhancing overall braking consistency. Each assembly features a precision-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary high-carbon cast-iron rotor rings. The 380x34mm curved vane design acts as a centrifugal pump, drawing cooling air through the disc for outstanding heat management and fade resistance under high-load track conditions. Every component is designed, cast, and machined in-house in the USA to exacting motorsport standards. Precision-Engineered Performance Vehicle Fitment Porsche 997.2 GT3 Porsche 997.2 GT2 Porsche 997 GT3 Cup Girodisc A1-126 Features Direct OEM replacement: Fits OEM calipers and hardware without modifications or special adapters. Curved vane design: 12 directional vanes circulate air through the rotor to manage temperature and prevent fade. Floating mount hardware: Cadmium-plated steel drive pins with anti-noise washers allow for thermal expansion and eliminate rattling. Lightweight two-piece construction: Reduces unsprung and rotational mass for sharper steering and faster response. Serviceable system: Replace only the cast-iron rings when worn while reusing the aluminum hats. Made in the USA: All Girodisc rotors are designed, cast, and machined domestically for uncompromising precision. Girodisc A1-126 FAQs Can these be used with factory brake pads? Yes, Girodisc rotors are designed to accept OEM pads with no modification required. Are they compatible with OEM PCCB systems? Yes, they replace PCCB rotors directly while maintaining stock brake bias and performance balance. Do these rotors make noise? No, anti-noise spring washers eliminate the rattling common to floating designs. Are they track-ready? Absolutely. Girodisc rotors are built to perform under extreme heat cycles on street or track. How are they sold? Sold and priced per pair. Upgrade your Porsche 997 GT3 or GT2 with Girodisc’s 380x34mm floating rotors for improved cooling, reduced fade, and race-proven durability—perfect for both spirited street driving and competitive track use.

Girodisc Porsche 380mm Rear Rotors Upgrade your Porsche’s braking system with Girodisc’s 380mm rear iron rotors, engineered as a direct replacement for OEM carbon-ceramic discs. This setup offers superior heat capacity, consistent braking performance, and reduced replacement costs, all while maintaining OEM fitment and balance for high-performance driving. Girodisc A2-155 Rotor Vehicle Fitment Porsche 911 Turbo / Turbo S (991.1 & 991.2)Porsche 911 GT3 (991.1 & 991.2)Porsche 911 GT3 RS (991 Series)Porsche 911 GT2 RS (991.2)Compatible with OEM carbon-ceramic brake systems and factory Brembo calipers. Direct Replacement Iron Rotor System The Girodisc system bolts directly to the factory hubs and calipers—no modifications necessary. Each rotor features a CNC-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary cast-iron friction ring. The floating two-piece design allows for expansion under heat without distortion, ensuring even pad wear and consistent pedal feel. Curved internal vanes act as centrifugal pumps, drawing cooling air through the disc for excellent thermal control. Girodisc A2-155 Rotor Features • Direct replacement for OEM PCCB 380 mm rear rotors• Billet 6061-T6 aluminum hats with hard-anodized finish• Proprietary high-carbon cast-iron rings cast and machined in the USA• Floating mount system with 10 cadmium-plated steel drive pins• Anti-noise spring washers eliminate rattle while allowing thermal float• Curved vane design improves airflow and heat dissipation• Fully rebuildable—replace only the iron rings when worn• Sold/priced per pair Girodisc A2-155 Rear Rotor FAQs: Can these rotors replace the OEM PCCB carbon-ceramic discs? Yes. The A2-155 rotors are a direct bolt-on replacement designed to fit factory hubs and calipers without adapters. How do iron rotors change braking feel? They offer a firmer, more predictable pedal with better modulation and heat control during extended sessions, making them ideal for track use. Are they suitable for daily driving? Absolutely. Despite their race-bred design, Girodisc rotors operate quietly and smoothly on the street while maintaining superb durability. What maintenance advantages do these have over PCCB? Iron rotors are rebuildable and far more affordable to service—simply replace the friction rings when worn rather than the entire assembly. Enhance your Porsche’s stopping power with Girodisc 380 mm rear rotors—engineered for the perfect balance of reliability, performance, and precision braking control.

Porsche 997 GT3 380mm Front Rotors The Girodisc 2-piece floating rotor system is a direct, high-performance replacement for the OEM PCCB rotors found on the Porsche 997.1 GT3 and GT2. No modifications are needed—these rotors bolt directly to the car and allow the continued use of factory pads and calipers, maintaining original brake balance and ABS functionality while delivering superior heat control and serviceability. Manufactured in the USA, the Girodisc assembly combines a lightweight 6061-T6 aluminum hat with proprietary high-carbon cast iron rotor rings. The curved vane internal design works as a centrifugal pump to draw cooling air through the rotor, significantly improving thermal stability and fade resistance under repeated hard braking. Precision-Engineered Performance Vehicle Fitment Porsche 997.1 GT3 Porsche 997.1 GT2 Girodisc A1-127 Features Direct PCCB-to-iron conversion: Replace fragile carbon-ceramic rotors with high-strength iron for enhanced durability and performance. OEM compatibility: Fully compatible with stock calipers and unmodified pads for a true plug-and-play installation. Curved vane ventilation: 12-directional vanes actively pull air through the disc to manage rotor temperature and prevent fade. Floating mount hardware: Cadmium-plated steel drive pins with anti-noise spring washers allow smooth thermal expansion while preventing rattle. Serviceable design: Reuse the aluminum hats and replace only the iron rings when worn for lower long-term cost. Made in the USA: All Girodisc rotors are engineered, cast, and machined in-house to precise racing standards. Girodisc A1-127 FAQs Will these work with OEM pads? Yes—unlike many aftermarket solutions, Girodisc rotors allow use of unmodified factory pads. Can I use these for track driving? Absolutely. Girodisc rotors are designed for high-temperature operation and consistent performance lap after lap. Will they change my brake bias or ABS? No. They are designed to maintain factory geometry and braking characteristics. Are they quieter than carbon-ceramic brakes? Yes, the anti-noise washers eliminate rattle while maintaining full floating function. How are they sold? Sold and priced per pair. Upgrade your 997 GT3 or GT2 with Girodisc’s 380mm floating rotors—lighter, cooler, and engineered for true motorsport-level stopping power without compromising OEM reliability.

Porsche 380mm Front Rotors Experience the difference precision-engineered braking makes with Girodisc 380mm two-piece floating front rotors for Porsche. Designed for direct bolt-on fitment, these rotors deliver superior cooling efficiency, reduced weight, and improved pedal modulation under repeated high-performance use. Precision-Machined for Porsche Performance The Girodisc 380mm rotor is built to handle the demands of aggressive street driving and track sessions alike. Utilizing a floating mount system, each rotor allows controlled movement between the hat and disc—reducing stress, minimizing warping, and improving thermal expansion control. This results in smoother, quieter, and more consistent braking performance in all conditions. A1-066 Girodisc Porsche 380mm Front Rotors Vehicle Fitment • 2007–2012 Porsche 997 GT3• 2007–2012 Porsche 997 GT3 RS• 2008–2013 Porsche 997 Turbo (with 380mm rotors)• 2014–2019 Porsche 991 Carrera S (with 380mm rotors) A1-066 Girodisc Porsche 380mm Front Rotors Features • 380mm two-piece floating rotor design• Direct-fit for factory calipers—no modifications required• Floating mount system with anti-noise spring washers• 6061-T6 aluminum hats, made in the USA• Proprietary high-carbon cast iron for superior durability• Sold/priced per pair A1-066 Girodisc Porsche 380mm Front Rotors FAQs: Are these rotors compatible with factory center-lock hubs? Yes. If your Porsche uses OEM center-lock wheels, select the center-lock drive pin option during purchase. Do these improve braking performance? Yes. The floating design and advanced metallurgy offer better heat control and fade resistance than standard rotors. Can I use stock brake pads? Yes, factory pad fitment is retained, but upgraded compounds are recommended for track use. Do these rotors require maintenance? Only normal inspection for wear; replacement rings are available separately to reuse your existing hats. For Porsche enthusiasts demanding the ultimate in braking consistency and cooling, Girodisc rotors deliver unmatched engineering and reliability—ready for the street or the circuit.

Girodisc Porsche 991 GT3 Rear Rotors Designed for the demanding performance of the 991 GT3 and GT3 RS, these Girodisc rear rotors provide a lighter, stronger, and more heat-efficient upgrade over factory iron rotors. Built for drivers who push their cars to the limit, they offer exceptional pedal feel, cooling performance, and precision without altering OEM brake balance or ABS function. A2-146 Girodisc Porsche 991 GT3/GT3RS Rear Rotor Fitment Porsche 911 GT3 (991.1 & 991.2)Porsche 911 GT3 RS (991.1 & 991.2)Compatible with OEM iron rotor systems and factory calipers. Precision-Built for Track and Street Use The Girodisc system bolts directly to the factory hubs and calipers—no modifications or pad changes required. Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary high-carbon cast-iron friction ring. The two-piece floating design allows for thermal expansion without warping, keeping braking consistent during intense heat cycles. Curved internal vanes act as centrifugal pumps to force cooling air through the disc, extending rotor life and minimizing fade. A2-146 Girodisc Porsche 991 GT3/GT3RS Rear Rotor Features • Direct replacement for OEM iron rear rotors—no modifications required• Billet 6061-T6 aluminum hats with anodized finish• Proprietary high-carbon cast-iron rings, cast and machined in the USA• Floating mount system with cadmium-plated drive pins and anti-noise washers• Curved internal vane design improves airflow and cooling• Maintains factory brake balance and ABS efficiency• Fully rebuildable—replace only the iron rings when worn• Sold/priced per pair A2-146 Girodisc Porsche 991 GT3/GT3RS Rear Rotor FAQs: Do these fit both the 991 GT3 and GT3 RS? Yes. They’re designed specifically for OEM iron rotor-equipped 991 GT3 and GT3 RS models and work with stock Brembo calipers. Do I need to change my brake pads or hardware? No. Unlike many aftermarket systems, Girodisc rotors retain full compatibility with OEM pads and hardware. What kind of performance gain should I expect? Expect reduced unsprung mass, better cooling efficiency, and improved pedal consistency under heavy braking conditions. Are these rotors suitable for track use? Absolutely. The floating two-piece construction and curved vane cooling make them ideal for extended track sessions or spirited driving on twisty roads. Bring race-proven braking precision to your Porsche 991 GT3 with Girodisc’s rear rotors—crafted for balance, responsiveness, and reliability at any speed.

Porsche 991 GT3 /GT3RS Front Rotors Girodisc 2-piece floating rotors are a direct, high-performance replacement for the factory iron rotors on Porsche 991 GT3 and GT3 RS models. Designed to bolt directly to the car with no modifications, these rotors retain compatibility with factory pads—something most aftermarket options can’t claim. The result is OEM fitment with upgraded braking performance, lighter weight, and better heat control under demanding track conditions. Each assembly features a 6061-T6 aluminum hat and Girodisc’s proprietary cast-iron rotor ring, manufactured and machined entirely in the USA. The curved vane design acts as a centrifugal pump, drawing cool air through the rotor to reduce surface temperatures and maintain consistent braking performance even under heavy load. Precision-Engineered Performance A1-146 Girodisc Porsche 991 GT3 / GT3RS Front Rotor Vehicle Fitment Porsche 991 GT3 Porsche 991 GT3 RS A1-146 Girodisc Porsche 991 GT3 / GT3RS Front Rotor Features Direct OEM replacement: Works with stock calipers and pads—no special hardware or machining required. Curved vane cooling: Directional vanes pump air through the disc for optimal heat management and fade resistance. Floating mount system: Twelve cadmium-plated drive pins allow the rotor to expand under heat without distortion or rattle. Factory compatibility: Designed to work with Porsche’s OEM iron rotor setup, retaining proper brake bias and ABS function. Lightweight construction: Reduces rotational mass and improves suspension response without compromising durability. Optional center lock fitment: Available with center lock drive pins for cars equipped with OEM center lock wheels. A1-146 Girodisc Porsche 991 GT3 / GT3RS Front Rotor FAQs Do these fit factory calipers? Yes, they are a direct bolt-on replacement for OEM iron rotors using factory pads and hardware. Will they work with center lock wheels? Yes—select the center lock option when ordering for proper fitment. Are they quieter than stock? Yes, the anti-noise spring washers reduce rattle and ensure smooth, quiet operation. Are they track-proven? Absolutely. When paired with quality pads and hi-temp fluid, these rotors deliver race-level performance and fade resistance. How are they sold? Sold and priced per pair. Step up your GT3’s braking consistency with Girodisc’s precision-built floating rotors—lighter, cooler, and engineered to perform lap after lap.

FITS: Ferrari 458 CHALLENGE   Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline.   The GiroDisc system is an upgrade to a 2-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake disc.  The 2-piece floating disc will bolt directly to the car and work with OEM calipers perfectly.  By upgrading your brakes with these lightweight high-performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.  The Giro Disc rotors are lighter than OEM pieces.  The reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.   When used with Pagid or PFC performance brake pads, and Competition Motorsport RF-1 brake fluid (also available from CompetitionMotorsport.com), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum.  The disc is manufactured from cast iron which is constructed in the USA and is 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 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.   The 2-piece GiroDisc design allows for rotor only replacement as well to minimize future replacement costs and deliver outstanding performance and cooling.   Sold/Priced per pair.

A1-128 Girodisc Two-Piece Front Brake Rotors FITMENT: Ferrari 458 Challenge Competition Motorsport is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline. The Girodisc system is an upgrade to a two-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake rotors. These two-piece floating rotors will bolt directly to the car and work with your OEM calipers perfectly. By upgrading your brakes with these lightweight, high-performance replacements (as opposed to a big brake kit), your factory brake bias is maintained, along with your ABS efficiency. Girodisc two-piece floating rotors are lighter than OEM brake rotors. This reduction in rotational mass and unsprung weight allows for quicker acceleration, sharper steering, and faster suspension response. When used with Pagid or PFC performance brake pads, and Competition Motorsport RF-1 brake fluid (available from Competition Motorsport), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured 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.

Stilo's Premier Wireless Intercom System The groundbreaking Stilo WL-10 Wireless Intercom System ushers in a new era in rally racing intercom technology with connections a that are completely wireless. This enables communication between your driver and co-driver without the need for cumbersome connection cables. Based on the world's only active digital noise-cancelling intercom -- the acclaimed Stilo DG10 -- the WL-10 Wireless has undergone significant enhancements, placing it at the pinnacle of motorsport communications and the world's first wireless intercom for rallying. The Stilo WL-10 Wireless Intercom System has been fine-tuned to be the best noise-cancelling intercom on the market. Powered directly from the car's 12-volt supply, the standout feature of this intercom is its wireless capability, liberating the driving crew from tethered connections. For enhanced versatility, the intercom features an output for communication with camera systems in Stage mode, as well as an input for radio interfaces (additional equipment required) in Road mode, ensuring seamless integration with team radios. Designed to seamlessly integrate with the latest Stilo helmets, including the WRC Venti and ST5 R WL models, this system represents the forefront of communication technology. The Stilo WL-10 Wireless Intercom System Bundle includes the DG Wireless intercom (AB0520) and two wireless helmet keys (AG0001), pre-paired and ready for immediate use. An optional wireless headset can be added to enhance comfort during road sections.  The Stilo WL-10 gives both driver and co-driver Digital Active Noise Cancelling, adjustable via an easy-to-use DIG button. With four distinct noise-canceling levels, each member can tailor their experience to suit individual preferences, augmented by independent volume controls. Switching between Road and Stage modes facilitates seamless integration with Bluetooth-enabled phones for hands-free calls during transit, while ensuring uninterrupted communication during stages. WL-KEY Wireless Helmet Keys AG0001 Each WL-KEY wireless helmet key and headset has its own battery. With battery life of up to 5 hours on a full charge, the wireless helmet keys and headsets offer ample talk time and convenient USB charging. The addition of helmet logos on the intercom's user interface simplifies wireless key management and connection status monitoring. Each wireless helmet key provides a range of up to 10 meters, enabling crew members to converse even when outside the vehicle. These keys have been designed to plug directly into the Stilo Venti WRC, Venti Trophy Plus, and Stilo ST5R WL helmets.

AP Racing 345x30mm 2-piece J Hook Front Floating Racing Brake Rotors Fit The Following Cars  Corvette C8 Z51 Iron Rotor Rear AP Racing 2-piece Competition J Hook rear disc pair for Corvette C8 Z51 with iron discs 350mm x 28mm (13.78" x 1.10") 72 Vane, D66 Huge increase in airflow, cooling capacity, and durability vs. OEM discs Saves 2 lbs. unsprung weight per side vs. OEM iron discs Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips Sold/priced per pair. AP Racing J Hook Brake Rotors – The Gold Standard in Track Day & Racing Performance Engineered for professional motorsport, HPDE, and dedicated track day use, AP Racing’s J Hook Brake Rotors deliver uncompromising performance, thermal stability, and consistent braking power. These two-piece, floating rotors are built to handle the extreme demands of road racing, with design features derived from over 50 years of elite competition—including Formula 1, NASCAR, and IMSA. Unlike conventional one-piece rotors, AP Racing’s two-piece floating design features a billet aluminum hat mated to a cast iron disc via precision-engineered bobbins. This setup allows for controlled radial expansion under high heat, minimizing distortion and coning. The result? More even pad wear, a firmer pedal feel, and longer component life, even during extended lapping sessions or endurance racing. Floating hardware includes anti-knockback spring clips that reduce piston retraction while eliminating common NVH issues like rattling. Why Choose AP Racing J Hook Rotors? Advanced Cooling, Superior Bite, Unmatched Durability At the heart of every rotor is AP Racing’s proprietary high-carbon iron alloy, developed to withstand repeated thermal cycling without cracking or warping. Internally, directional vanes—far superior to OEM pillar or straight vane designs—maximize airflow and cooling. With 60 to 84 vanes per rotor, AP Racing achieves faster heat evacuation, reduced brake fade, and a more consistent friction surface. These rotors are left/right-specific for optimal airflow and balance. The exclusive J Hook slot pattern offers enhanced initial bite and promotes uniform heat distribution across the rotor face, reducing pad deposits and vibration. Unlike drilled rotors or straight-slot competitors, the J Hook design provides cleaner pad transfer during bed-in and superior modulation under braking—ideal for serious drivers who demand feedback and control. Yes, you might hear a little more whirr, but you’ll gain the stopping power, consistency, and longevity your lap times demand. Premium Components, Affordable Performance The rotor hats are CNC-machined from 6061-T6 billet aluminum and hard anodized for strength and heat resistance. Scalloped edges under the hat further assist heat dissipation. All hardware is U.S.-made to AP Racing spec, the same quality found on pro-level racing platforms. And while these rotors are race-proven, they’re also surprisingly cost-effective to replace. Don’t settle for cheap rotors that crack after a weekend—AP’s J Hook rings offer better durability and real long-term value. Fewer replacements mean more track time, less downtime, and peace of mind knowing you're running the best. Used by Champions. Trusted by Experts. From endurance racers to HPDE enthusiasts, AP Racing brake rotors are trusted worldwide for their reliability, longevity, and performance under pressure. Whether you're shaving seconds off your lap time or building a dedicated track car, the J Hook delivers a professional-grade solution that won’t let you down.   AP Racing J Hook Brake Rotors for Auto Racing, Track Days & HPDE Why Rotor Design Matters: Heat Expansion and Floating Technology As with most metals, iron brake discs expand significantly under heat. When temperatures rise, the disc grows radially—expanding in both diameter and circumference. Traditional one-piece rotors struggle to accommodate this natural expansion. As the outer edge pulls away from the center under heat stress, it creates a condition called “coning”—a distortion that compromises pad-to-rotor contact. This distortion can lead to uneven pad wear, brake tapering, and an inconsistent, long brake pedal. AP Racing two-piece floating brake rotors are purpose-built to eliminate these issues. Engineered with “float” built into the disc or hat assembly, these rotors feature oblong-shaped mounting holes that allow the hardware to slide as the disc heats up. This flexibility ensures the disc runs true within the caliper under high-temperature loads, effectively reducing distortion, minimizing pad taper and stress cracks, and promoting longer component life. Custom Mounting Hardware & Anti-Knockback Spring Clips AP Racing rotors utilize application-specific, U.S.-made mounting hardware—not generic bolts. These premium components are the exact parts used in AP’s professional motorsport products, engineered to withstand the rigors of competitive racing. To manage lateral disc motion that can push caliper pistons backward (known as knockback), AP Racing integrates anti-knockback spring clips on alternating bobbins—five on a ten-bolt setup, six on a twelve-bolt disc. These clips keep the aluminum hat and iron disc ring properly aligned while still allowing for radial float. Bonus: they eliminate annoying rattles and vibrations, ensuring a quieter, more refined braking experience. High-Performance Hat Design for Heat Isolation The disc hats in AP Racing’s two-piece floating rotors are CNC-machined from 6061-T6 billet aluminum and finished with a hard anodized coating. This high-strength aluminum alloy was selected for its ability to maintain structural integrity even at elevated temperatures. AP adds scalloped channels beneath the hat to further encourage airflow and heat evacuation from the outer disc face, minimizing thermal transfer to hubs and wheel bearings—helping reduce maintenance costs on these expensive components. Internal Vane Engineering: Airflow Optimization & Thermal Stability AP Racing’s internal vane design sets them apart from OEM and most aftermarket competitors. While many factory brake discs use non-directional pillar vanes (low-cost and NVH-focused), AP Racing rotors use directional vanes engineered for maximum airflow. These rotors are side-specific—meaning you’ll receive a unique left and right disc in each set—ensuring optimized cooling through strategic vane orientation and shape. Beyond that, AP Racing rotors feature a superior vane count, typically ranging from 60 to 84 vanes, compared to 30–48 in most aftermarket rotors. After extensive CFD and thermal analysis, this high vane count was proven to: Increase airspeed and thermal transfer Reduce recirculation and deflection at the disc face Minimize coning, cracking, and brake fade Deliver more even pad contact and extended rotor life J Hook Slot Pattern: Exclusive to AP Racing Slots and drill holes may improve initial bite, but they also introduce “cool spots” in the rotor face—areas of uneven heating that can lead to stress risers, cracks, and pad vibration. OEM rotors often avoid this by leaving the disc face blank, but that compromises bite and brake feel. AP Racing’s patented J Hook design, developed through rigorous R&D, solves this problem. The hooks are meticulously spaced around the disc’s circumference and from hat to edge, forming a continuous distortion path that ensures even heat distribution. This encourages uniform pad deposits during bed-in, helps reduce judder and cracking, and improves consistency under repeated high-load braking. In addition, the J Hook slots provide more leading edges for pads to grip than traditional curved slots or blank rotors. While this might generate a mild whirring sound during braking, the benefits—more bite, cleaner bedding, better pedal feel—make it the top choice for committed racers and serious track day drivers. Metallurgy Backed by 50+ Years of Motorsport Leadership AP Racing's reputation is built on performance, and their proprietary iron alloy used in J Hook rotors is no exception. Drawing from over five decades of elite motorsport experience, including 750+ Formula 1 wins and widespread use across NASCAR, AP’s engineers have developed a disc alloy that excels under sustained racing temperatures and stress. Where OEM discs focus on affordability and mass production, AP Racing’s J Hook rotors are purpose-built for motorsport durability and heat resistance. Affordable Replacement Cost: Serious Value for Serious Drivers Even the best brake rotors are consumables. When you drive hard—especially at the track—your discs will eventually wear out. That’s why AP Racing designed their replacement iron rings to be cost-effective, allowing you to replace worn parts without breaking the bank. Compare that to constantly buying cheap $150 rotors every weekend—rotors that can't handle the heat and need to be swapped frequently. With AP Racing’s J Hook rotors, you get longer service intervals, less downtime, and better performance over time, making them an incredibly smart long-term investment. Proven on Track. Trusted by Champions. Top-tier racing teams rely on AP Racing J Hook rotors for one reason: they perform under pressure. Whether you're running time trials, attending HPDE events, or competing in wheel-to-wheel racing, these rotors offer professional-grade reliability, safety, and performance. Bedding and preparation of AP Racing J Hook Disc Properly preparing your new brake discs before heavy use is extremely important. The goal of bedding-in your brake pads and discs is to mate them together properly and prepare them for heavy use.  When prepared properly, or bed-in, your pads will transfer a thin layer of material to the disc face (transfer layer).  The pads in your caliper will then actually ride on that thin layer of pad material you’ve put down on the rotor, rather than rubbing directly on the iron rotor face.  A good transfer layer is going to give you superior brake pedal feel, less noise, superior pad wear, and lower the chances of cracking your discs. Important Notes- PLEASE READ! First, make sure you are on a closed course to perform a proper bed-in.  Do NOT perform the procedure on public roads.  You need a stretch of asphalt with long straights, good visibility, and no potential obstructions.  Make sure you are in a position to safely and repeatedly attain the necessary speeds to perform the bed-in procedure.  A controlled racetrack is the best place to perform this procedure.  AP Racing and Competition Motorsport in no way suggest or condone speeding on public roads or breaking the law in your car, nor do we take responsibility for any damage or injury that occurs as a result of using our product or these procedures.  You are performing the bed-in procedure at your own risk.  During these procedures, it’s critical that you never come to a complete stop with your foot on the brake pedal.  If you have brake ducts on your car, you may want to block them off to allow your brake system to heat up easily. The procedure outlined below is a generic procedure for most types of mild race pad.  Please check your pad manufacturer’s recommended bed-in procedure. Accelerate to approximately 60mph and then decelerate down to 5 mph.  If your car has ABS, you should try to hold the brakes at a point just before ABS intervention.  Once the car slows to 5mph, immediately accelerate back up to about 60mph, and brake again to roughly 5mph.  Repeat this series of stopping and accelerating 8 to 10 times.  Again, do not come to a complete stop with your foot on the brake pedal. Cool the brake system down by cruising at 45mph+ for 5 to 10 minutes. Visually inspect your discs.  They should be a blue/grey color (instead of shiny silver), and have an even layer of pad material across and around the entire rotor face. If the AP Racing rotors don’t have a layer of pad material on them, perform another series of stops in the manner outlined above.

AP Racing 345x30mm 2-piece J Hook Front Floating Racing Brake Rotors Fit The Following Cars  Corvette C8 Z51 Iron Rotor Front AP Racing by Essex 2-piece Competition J Hook front disc pair for Corvette C8 Z51 with iron discs 345mm x 30mm (13.59" x 1.18") 72 Vane, D66 Huge increase in airflow, cooling capacity, and durability vs. OEM discs Saves 2 lbs. unsprung weight per side vs. OEM iron discs Designed for: club racing, time trial, auto-x, HPDE Works with OEM calipers, no modifications required Ultralight, fully floating, anodized billet aluminum hat with float control/anti-rattle clips Sold/priced per pair. AP Racing J Hook Brake Rotors – The Gold Standard in Track Day & Racing Performance Engineered for professional motorsport, HPDE, and dedicated track day use, AP Racing’s J Hook Brake Rotors deliver uncompromising performance, thermal stability, and consistent braking power. These two-piece, floating rotors are built to handle the extreme demands of road racing, with design features derived from over 50 years of elite competition—including Formula 1, NASCAR, and IMSA. Unlike conventional one-piece rotors, AP Racing’s two-piece floating design features a billet aluminum hat mated to a cast iron disc via precision-engineered bobbins. This setup allows for controlled radial expansion under high heat, minimizing distortion and coning. The result? More even pad wear, a firmer pedal feel, and longer component life, even during extended lapping sessions or endurance racing. Floating hardware includes anti-knockback spring clips that reduce piston retraction while eliminating common NVH issues like rattling. Why Choose AP Racing J Hook Rotors? Advanced Cooling, Superior Bite, Unmatched Durability At the heart of every rotor is AP Racing’s proprietary high-carbon iron alloy, developed to withstand repeated thermal cycling without cracking or warping. Internally, directional vanes—far superior to OEM pillar or straight vane designs—maximize airflow and cooling. With 60 to 84 vanes per rotor, AP Racing achieves faster heat evacuation, reduced brake fade, and a more consistent friction surface. These rotors are left/right-specific for optimal airflow and balance. The exclusive J Hook slot pattern offers enhanced initial bite and promotes uniform heat distribution across the rotor face, reducing pad deposits and vibration. Unlike drilled rotors or straight-slot competitors, the J Hook design provides cleaner pad transfer during bed-in and superior modulation under braking—ideal for serious drivers who demand feedback and control. Yes, you might hear a little more whirr, but you’ll gain the stopping power, consistency, and longevity your lap times demand. Premium Components, Affordable Performance The rotor hats are CNC-machined from 6061-T6 billet aluminum and hard anodized for strength and heat resistance. Scalloped edges under the hat further assist heat dissipation. All hardware is U.S.-made to AP Racing spec, the same quality found on pro-level racing platforms. And while these rotors are race-proven, they’re also surprisingly cost-effective to replace. Don’t settle for cheap rotors that crack after a weekend—AP’s J Hook rings offer better durability and real long-term value. Fewer replacements mean more track time, less downtime, and peace of mind knowing you're running the best. Used by Champions. Trusted by Experts. From endurance racers to HPDE enthusiasts, AP Racing brake rotors are trusted worldwide for their reliability, longevity, and performance under pressure. Whether you're shaving seconds off your lap time or building a dedicated track car, the J Hook delivers a professional-grade solution that won’t let you down.   AP Racing J Hook Brake Rotors for Auto Racing, Track Days & HPDE Why Rotor Design Matters: Heat Expansion and Floating Technology As with most metals, iron brake discs expand significantly under heat. When temperatures rise, the disc grows radially—expanding in both diameter and circumference. Traditional one-piece rotors struggle to accommodate this natural expansion. As the outer edge pulls away from the center under heat stress, it creates a condition called “coning”—a distortion that compromises pad-to-rotor contact. This distortion can lead to uneven pad wear, brake tapering, and an inconsistent, long brake pedal. AP Racing two-piece floating brake rotors are purpose-built to eliminate these issues. Engineered with “float” built into the disc or hat assembly, these rotors feature oblong-shaped mounting holes that allow the hardware to slide as the disc heats up. This flexibility ensures the disc runs true within the caliper under high-temperature loads, effectively reducing distortion, minimizing pad taper and stress cracks, and promoting longer component life. Custom Mounting Hardware & Anti-Knockback Spring Clips AP Racing rotors utilize application-specific, U.S.-made mounting hardware—not generic bolts. These premium components are the exact parts used in AP’s professional motorsport products, engineered to withstand the rigors of competitive racing. To manage lateral disc motion that can push caliper pistons backward (known as knockback), AP Racing integrates anti-knockback spring clips on alternating bobbins—five on a ten-bolt setup, six on a twelve-bolt disc. These clips keep the aluminum hat and iron disc ring properly aligned while still allowing for radial float. Bonus: they eliminate annoying rattles and vibrations, ensuring a quieter, more refined braking experience. High-Performance Hat Design for Heat Isolation The disc hats in AP Racing’s two-piece floating rotors are CNC-machined from 6061-T6 billet aluminum and finished with a hard anodized coating. This high-strength aluminum alloy was selected for its ability to maintain structural integrity even at elevated temperatures. AP adds scalloped channels beneath the hat to further encourage airflow and heat evacuation from the outer disc face, minimizing thermal transfer to hubs and wheel bearings—helping reduce maintenance costs on these expensive components. Internal Vane Engineering: Airflow Optimization & Thermal Stability AP Racing’s internal vane design sets them apart from OEM and most aftermarket competitors. While many factory brake discs use non-directional pillar vanes (low-cost and NVH-focused), AP Racing rotors use directional vanes engineered for maximum airflow. These rotors are side-specific—meaning you’ll receive a unique left and right disc in each set—ensuring optimized cooling through strategic vane orientation and shape. Beyond that, AP Racing rotors feature a superior vane count, typically ranging from 60 to 84 vanes, compared to 30–48 in most aftermarket rotors. After extensive CFD and thermal analysis, this high vane count was proven to: Increase airspeed and thermal transfer Reduce recirculation and deflection at the disc face Minimize coning, cracking, and brake fade Deliver more even pad contact and extended rotor life J Hook Slot Pattern: Exclusive to AP Racing Slots and drill holes may improve initial bite, but they also introduce “cool spots” in the rotor face—areas of uneven heating that can lead to stress risers, cracks, and pad vibration. OEM rotors often avoid this by leaving the disc face blank, but that compromises bite and brake feel. AP Racing’s patented J Hook design, developed through rigorous R&D, solves this problem. The hooks are meticulously spaced around the disc’s circumference and from hat to edge, forming a continuous distortion path that ensures even heat distribution. This encourages uniform pad deposits during bed-in, helps reduce judder and cracking, and improves consistency under repeated high-load braking. In addition, the J Hook slots provide more leading edges for pads to grip than traditional curved slots or blank rotors. While this might generate a mild whirring sound during braking, the benefits—more bite, cleaner bedding, better pedal feel—make it the top choice for committed racers and serious track day drivers. Metallurgy Backed by 50+ Years of Motorsport Leadership AP Racing's reputation is built on performance, and their proprietary iron alloy used in J Hook rotors is no exception. Drawing from over five decades of elite motorsport experience, including 750+ Formula 1 wins and widespread use across NASCAR, AP’s engineers have developed a disc alloy that excels under sustained racing temperatures and stress. Where OEM discs focus on affordability and mass production, AP Racing’s J Hook rotors are purpose-built for motorsport durability and heat resistance. Affordable Replacement Cost: Serious Value for Serious Drivers Even the best brake rotors are consumables. When you drive hard—especially at the track—your discs will eventually wear out. That’s why AP Racing designed their replacement iron rings to be cost-effective, allowing you to replace worn parts without breaking the bank. Compare that to constantly buying cheap $150 rotors every weekend—rotors that can't handle the heat and need to be swapped frequently. With AP Racing’s J Hook rotors, you get longer service intervals, less downtime, and better performance over time, making them an incredibly smart long-term investment. Proven on Track. Trusted by Champions. Top-tier racing teams rely on AP Racing J Hook rotors for one reason: they perform under pressure. Whether you're running time trials, attending HPDE events, or competing in wheel-to-wheel racing, these rotors offer professional-grade reliability, safety, and performance. Bedding and preparation of AP Racing J Hook Disc Properly preparing your new brake discs before heavy use is extremely important. The goal of bedding-in your brake pads and discs is to mate them together properly and prepare them for heavy use.  When prepared properly, or bed-in, your pads will transfer a thin layer of material to the disc face (transfer layer).  The pads in your caliper will then actually ride on that thin layer of pad material you’ve put down on the rotor, rather than rubbing directly on the iron rotor face.  A good transfer layer is going to give you superior brake pedal feel, less noise, superior pad wear, and lower the chances of cracking your discs. Important Notes- PLEASE READ! First, make sure you are on a closed course to perform a proper bed-in.  Do NOT perform the procedure on public roads.  You need a stretch of asphalt with long straights, good visibility, and no potential obstructions.  Make sure you are in a position to safely and repeatedly attain the necessary speeds to perform the bed-in procedure.  A controlled racetrack is the best place to perform this procedure.  AP Racing and Competition Motorsport in no way suggest or condone speeding on public roads or breaking the law in your car, nor do we take responsibility for any damage or injury that occurs as a result of using our product or these procedures.  You are performing the bed-in procedure at your own risk.  During these procedures, it’s critical that you never come to a complete stop with your foot on the brake pedal.  If you have brake ducts on your car, you may want to block them off to allow your brake system to heat up easily. The procedure outlined below is a generic procedure for most types of mild race pad.  Please check your pad manufacturer’s recommended bed-in procedure. Accelerate to approximately 60mph and then decelerate down to 5 mph.  If your car has ABS, you should try to hold the brakes at a point just before ABS intervention.  Once the car slows to 5mph, immediately accelerate back up to about 60mph, and brake again to roughly 5mph.  Repeat this series of stopping and accelerating 8 to 10 times.  Again, do not come to a complete stop with your foot on the brake pedal. Cool the brake system down by cruising at 45mph+ for 5 to 10 minutes. Visually inspect your discs.  They should be a blue/grey color (instead of shiny silver), and have an even layer of pad material across and around the entire rotor face. If the AP Racing rotors don’t have a layer of pad material on them, perform another series of stops in the manner outlined above.