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Girodisc A1-050 Girodisc 2pc Front Brake Rotors $1,800.00

FITS: Lamborghini Huracán front (2014-present) Thunderhill is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most products the same or next business day to ensure we meet your delivery deadline.This Girodisc system upgrades the OEM brakes to a 395mm two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your Huracán front and work flawlessly with the OEM calipers.Upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response.Combined with Pagid or PFC performance brake pads and Thunderhill RF-1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped rotors that result from high-performance driving.The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc.The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors.This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs.Sold/priced per pair.

Girodisc A2-075 Girodisc 2pc Rear Brake Rotors $1,800.00

Thunderhill 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. Fits Ferrari 599 GTB The Girodisc system is a direct replacement for the OE disc.No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.Once the Girodisc system is in place, simply replace the cast iron rotor when needed.

Forgeline Forgeline GA1R Wheels (Porsche Centerlock) $1,800.00

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE GA1R (CENTERLOCK) Contact a wheel specialist today at 844-438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! The Forgeline GA1R is a fully-forged one-piece monoblock wheel that utilizes much of the technology and design of the very successful GA3R racing wheel, including Forgeline's exclusive I-Beamed Spoke technology. The concave design of the GA1R not only looks great but allows plenty of room for caliper clearance and extreme brake fitment, while the one-piece monoblock forging and I-beamed spoke design yield a wheel that is extremely stiff with fatigue strength equal to the proven GA3R. Yet despite the strength and stiffness, for most applications and sizes, it also delivers a high-performance weight reduction - making it perfect for motorsports and racing applications or the discerning street enthusiast who demands the ultimate in performance capability!The GA1R is designed for racing. It is engineered with a 2,100 lb. street-tire load rating (per wheel) to ensure strength and integrity, even when subjected to the massive loads encountered on the stickiest race tires.The GA1R is currently available in 18, 19, 20, and 21-inch sizes with a range of widths (6" to 15") and offsets. Just like any Forgeline wheel, the GA1R is available in thousands of fully customizable finish options. Also available with a knurled bead and TPMS. FEATURES: One-Piece Monoblock Design Concave Profile I-Beamed Spoke Technology Extreme Stiffness Extreme Fatigue Strength 2100 lb. Street-Tire Load Rating (per wheel) Lightweight Generous Brake Clearance Forged 6061-T6 Aluminum Customizable Finish Options Designed specifically for Porsche Center Lock Applications Legendary Forgeline Quality

Forgeline Forgeline GS1R Wheels (5 Lug) $1,800.00

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE GS1R (FIVE-LUG) Contact a wheel specialist today at 844-438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! Designed for professional racing teams competing in the IMSA WeatherTech GS class, the Forgeline GS1R combines the latest in advanced wheel technologies: one-piece forged monoblock construction, motorsport engineered design, and I-beamed spokes. This wheel is engineered to withstand the rigors of top-level endurance racing with a 2100-lb. street tire load rating, exceptional deflection stiffness, and very light weight.Made from the same forgings and similar design as the popular GA1 street wheel, the GS1R has more material machined from the center area for additional weight reduction and improved access to the lugs. In combination with a new chamfered outer lip (with fewer sharp edges for easier handling), this open-lug design enables faster wheel changes and saves up to an additional pound of mass from each wheel.The GS1R is currently available in 17, 18, 19, and 20-inch diameters with a range of widths and offsets. And just like any Forgeline wheel, the GS1R is available with fully customizable finish options. FEATURES: One-Piece Forged 6061-T6 Monoblock Design Concave Profile I-Beamed Spoke Technology Extreme Stiffness Extreme Fatigue Strength 2100-lb. Street Tire Load Rating Light Weight (Up to One Pound Lighter Than The Standard GA1R) Generous Brake Clearance Open Lug Center Customizable Finish Options Legendary Forgeline Quality (Note: this wheel does not accept a center cap. It is recommended for track use only.)

Forgeline Forgeline GS1R Wheels (Porsche Centerlock) $1,800.00

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE GS1R (CENTER LOCK) Contact a wheel specialist today at 844-438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! Designed for professional racing teams competing in the IMSA WeatherTech Grand Sport (GS) class, the Forgeline GS1R combines the latest in advanced wheel technologies: one-piece forged monoblock construction, motorsport engineered design, and I-beamed spokes. This wheel is engineered to withstand the rigors of top-level endurance racing with a 2100-lb. street tire load rating and exceptional deflection stiffness.Made from the same forgings and similar design as the GA1R street wheel, the GS1R has more material machined from the center area for additional weight reduction and improved access to the lugs. In combination with a new chamfered outer lip (with fewer sharp edges for easier handling), this enables faster wheel changes and saves up to a pound of mass from each wheel!The GS1R is currently available in 17, 18, 19, and 20-inch diameters with a range of widths and offsets. And just like any Forgeline wheel, the GS1R is available with fully customizable finish options. FEATURES: One-Piece Monoblock Forged 6061-T6 Concave Profile I-Beamed Spoke Technology Extreme Stiffness Extreme Fatigue Strength 2100 lb. Street-Tire Load Rating (per wheel) Light Weight - Up to One Pound Lighter Than The Standard GA1R Generous Brake Clearance Open Lug Center Customizable Finish Options Legendary Forgeline Quality (Note: this wheel will not accept a center cap. Recommended for race track use only.)

Girodisc A2-159 Girodisc 2pc Rear Brake Rotors (McLaren 570 - 650S - 600LT - 720S) $1,800.00

FITMENT (REAR): McLaren 650S McLaren 570S McLaren 720S McLaren 600LT Thunderhill is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country. We ship most Girodisc systems the same or next business day to ensure we meet your delivery deadline. The Girodisc system for the McLaren 600LT, 720S, 650S or 570S is a direct replacement for the OEM carbon ceramic rotors. No modifications are necessary, the Girodisc rotors will bolt directly to your McLaren and work with the original calipers without issue. We recommend Pagid 4346 racing brake pads for this Girodisc system, in either RS29 (endurance) or RS14 (sprint) compound. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is made from cast iron to the same specification and material as used by professional racing organizations. It is a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.Once the Girodisc system is in place, simply replace the cast iron rotor when needed. When used with Pagid pads and high-temp racing brake fluid, you have a truly amazing, race-proven solution to the fragile, ultra-expensive carbon-ceramic rotors on your McLaren.

Forgeline Forgeline GS1R CL Wheels (Porsche Centerlock) $1,800.00

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE GS1R CL (PORSCHE CL) Contact a wheel specialist today at (844) 438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! Designed for professional racing teams competing in the IMSA WeatherTech GS class, the ten-spoke Forgeline GS1R CL combines the latest in advanced wheel technologies: one-piece forged monoblock construction, motorsport engineered design, and I-beamed spokes. This wheel is engineered to withstand the rigors of top-level endurance racing with a 2100-lb. street tire load rating, exceptional deflection stiffness, and very light weight.Starting with the same forgings as the popular GA1 street wheel, the GS1R CL has more material machined from the center area for additional weight reduction. In combination with a new chamfered outer lip (with fewer sharp edges for easier handling), this design enables faster wheel changes and saves up to a pound of mass from each wheel.The GS1R CL is currently available in 19- and 20-inch diameters with a range of widths and offsets. And just like any Forgeline wheel, the GS1R CL is available with fully customizable finish options. FEATURES: One-Piece Forged 6061-T6 Monoblock Design Concave Profile I-Beamed Spoke Technology Extreme Stiffness Extreme Fatigue Strength 2100-lb. Street Tire Load Rating Light Weight (up to one pound lighter than the standard GA1R) Generous Brake Clearance Porsche Center Lock Application-Specific Customizable Finish Options Legendary Forgeline Quality Note: this wheel does not accept a center cap.

Girodisc A2-161 Girodisc 2pc Rear Brake Rotors (Ferrari 488-F8-Pista) $1,800.00

FITMENT (REAR): Ferrari 488 Ferrari F8 Ferrari Pista Thunderhill is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country. We ship most Girodisc systems the same or next business day to ensure we meet your delivery deadline. The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Sold/priced in pairs

Forgeline Forgeline GA3 $1,800.00

Forgeline GA3 The Forgeline GA3 is the Performance Series street version of the popular, race-proven GA3R. (The GA3R is maybe a little too hardcore for the street; the GA3 derivative is the perfect compromise.) The GA3 adds material to the center of its racing counterpart, allowing use of our standard center cap. And it uses stainless steel (rather than titanium) ARP assembly hardware. Forgeline's “I-beamed” spoke technology reduces weight and applies additional strength and rigidity within the spokes of the wheel. The hidden ARP assembly hardware delivers a smooth clean look and makes wheel cleaning faster and easier. The design of the GA3’s center allows plenty of room for caliper clearance and extreme brake fitment. And they have employed a new proprietary fast-drying super-strength sealer that is highly resistant to leaks and allows for quick and easy repairs. The GA3 is produced using Forgeline's traditional forging method, utilizing 6061-T6 aluminum with heat-treated rim-shells. And just like any Forgeline wheel, the GA3 is fully customizable in fitment and finish, including center-lock applications. NOW AVAILABLE with a stepped lip in 17-inch, 18-inch, 19-inch, and 20-inch sizes. This wheel is also available in a reverse deep lip/flat lip in 18-inch and 19-inch sizes. Derived From the GA3R Racing Wheel Three-Piece Performance Wheel Stepped-Lip Design (Also available with a reverse deep lip/flat lip in 18-inch & 19-inch diameters.) I-Beamed Spoke Technology Hidden ARP Fasteners Generous Brake Clearance Forged 6061-T6 Aluminum Heat-Treated Rim Shells Includes Standard Aluminum Center Cap Customizable Fitment and Finish Options Legendary Forgeline Quality and Customer Service

Forgeline Forgeline GA3-6 (Six Lug) from $1,800.00

Forgeline GA3-6 This GA3-6 is a 6-spoke/6-lug version of Forgeline's standard GA3 wheel, optimized specifically for 6-lug applications -- most notably the Dodge Viper and Competition Coupe. The Performance Series street version of the race-proven GA3R-6, the GA3-6 adds material to the center of its racing counterpart, allowing use of our standard center cap. And it uses stainless steel (rather than titanium) ARP assembly hardware. Forgeline's vaunted “I-beamed” spoke technology reduces weight and applies additional strength and rigidity within the spokes of the wheel. The hidden ARP assembly hardware delivers a smooth clean look and makes wheel cleaning faster and easier. The design of the GA3-6’s center allows plenty of room for caliper clearance and extreme brake fitment. And Forgeline employed a new proprietary fast-drying super-strength sealer that is highly resistant to leaks and allows for quick and easy repairs. The GA3-6 is produced using Forgeline's traditional forging method utilizing 6061-T6 aluminum with heat-treated rim-shells. And just like any Forgeline wheel, the GA3-6 is fully customizable in fitment and finish, including center-lock applications. Now available in 6-spoke/6-lug fitments, including the Dodge Viper and Competition Coupe, in 18-inch, 19-inch, and 20-inch diameters in a variety of widths and offsets. Derived From the GA3R Racing Wheel Six-Lug Hub Center Engineered for Dodge Viper Applications Three-Piece Performance Wheel Stepped-Lip Design (Also available with a reverse deep lip/flat lip in 18-inch & 19-inch diameters.) I-Beamed Spoke Technology Hidden ARP Fasteners Generous Brake Clearance Forged 6061-T6 Aluminum Heat-Treated Rim Shells Includes Standard Aluminum Center Cap Customizable Fitment and Finish Options Optimized Specifically for 6-lug fitments, including the Dodge Viper and Competition Coupe Legendary Forgeline Quality and Customer Service

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Thunderhill Tire Package: Porsche GT3 from $1,800.00

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A close-up photo of the Stilo Venti WRC Carbon Fiber 8860-2018 helmet, showcasing its sleek carbon fiber shell and intricate ventilation design.

Stilo Stilo Venti WRC Carbon Fiber Helmet FIA 8859/SA2020 $1,800.00

Stilo Venti WRC Carbon Uncompromising Safety and Amazing Performance The new Stilo Venti WRC Carbon Fiber racing helmet features lightweight, durable carbon fiber construction using their smallest carbon fiber shell. It's made even lighter using Stilo's innovative PURO technology, eliminating the final clear coat layer. The result is very light weight without compromising maximum protection. Stilo Venti WRC Carbon Fiber Is FIA 8859-2015 & SA2020 Certified This Stilo Venti WRC Carbon Fiber Helmet is certified to both the FIA 8859-2015 and Snell SA2020 certification standards. The Stilo Venti WRC Carbon Fiber Helmet is a professional-grade helmet trusted by professional and amateur racers alike. With its unique ventilation system, the Stilo Venti WRC offers superior airflow to keep you cool and focused during long races and under extreme conditions. The interior padding of the Stilo Venti WRC can be easily removed and cleaned, ensuring a fresh and comfortable fit for every race. The Stilo Venti WRC Carbon Fiber Helmet is also available with FIA 8860-2018 certification here. Innovative New Features Give You Exceptional Performance The Stilo Venti WRC is the update of the legendary WRC helmet as worn by multiple rally champions. This helmet features many improvements, most notably the innovative wireless (WL) communication system. While retaining Stilo's market-leading helmet electronics, the Venti WRC comms port was re-designed to use the WL wireless key (sold separately). The WL key doesn't interfere with FHR posts or straps, and allows the driver and co-driver to communicate inside and outside the car. The Stilo Venti WRC has a mic boom with new geometry to maximize both visibility and sound quality, allowing you to maintain focus and concentration on the track ahead. The Stilo Venti WRC also features an all-new aggressive design including an adjustable visor that lets you customize your field of view under different driving conditions. The Pinnacle of Performance, Innovation, and Safety The Stilo Venti WRC Carbon Fiber sits at the pinnacle of motorsport safety and performance, offering uncompromising quality and class-leading innovation. The Stilo Venti WRC Carbon Fiber gives you unparalleled safety, comfort, and performance on the race track. The Stilo Venti WRC Carbon Fiber comes standard with factory-fitted HANS post anchors. The most effective helmet is one that fits properly. To measure your head, have an assistant use a dressmaker's tape or a piece of string to measure the circumference of your head. Start at a point about an inch above your eyebrows, looping around the back of your head at the point that results in the largest measurement, and finally around to the front again. It's a good idea to take two or three measurements to make sure you have the largest one. This helmet will ship with signature required for delivery.

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Bell Mag-10 Rally Carbon Fiber Helmet SA2020 - Thunder Hill

Bell Bell MAG-10 Rally WW Carbon Fiber Helmet SA2025 $1,799.95

Bell MAG-10 Rally WW Carbon Fiber Helmet SA2025 The Bell MAG-10 Rally Carbon WW is a revolutionary open-face rally helmet that brings wired and wireless communication together in one seamless package. Built on Bell’s lightweight carbon shell and certified to FIA 8859-2024 and Snell SA2025 standards, this helmet is designed for rally drivers and co-drivers who demand maximum safety, advanced technology, and flawless communication. With integrated Zeronoise® WW (Wired-Wireless) electronics, it eliminates the need for separate modules or adapters—making it the most complete rally helmet solution on the market today. Wired and wireless communication built into the helmet Features Ultra-lightweight carbon fiber shell for strength and reduced driver fatigue Dual-homologation: FIA 8859-2024 approved and Snell SA2025 certified Integrated Zeronoise® WW system combining wired and wireless communication Automatic, seamless switching between wired and wireless without interruptions Adaptive noise-cancelling technology for clear audio in high-noise rally environments Built-in wireless module, connector, and battery—no external components needed Fully compatible with all major rally intercom systems Advanced ventilation system to keep drivers cool and focused Adjustable sun peak with anti-dazzle strip for better visibility Removable, washable cheek pads and liner for comfort and easy maintenance Hans® anchor points factory-installed for head and neck restraint systems Why choose the BELL MAG-10 Rally WW? The Bell MAG-10 Rally WW is more than just a helmet—it’s a communication breakthrough. With both wired and wireless systems integrated, you can connect with any intercom setup and switch seamlessly without missing a call. The adaptive noise cancellation ensures crystal-clear audio even in the loudest rally stages, while the carbon shell keeps weight low for long-term comfort. For serious rally competitors, it’s the ultimate combination of safety, technology, and convenience. Bell MAG-10 WW CARBON FIBER HELMET SIZE CHART Bell MAG-10 Rally WW Carbon Fiber Helmet FAQs What makes the WW version unique? It integrates both wired and wireless communication directly into the helmet, eliminating the need for external modules or adapters. Is it FIA approved? Yes, it carries FIA 8859-2024 homologation and Snell SA2025 certification, ensuring top-level motorsport safety compliance. How does the communication system switch modes? The Zeronoise® WW system automatically and seamlessly switches between wired and wireless communication with no interruptions. Will it work with my intercom? Yes, it’s fully compatible with all intercom systems used in rallying, offering maximum flexibility. Who should choose the WW model? Rally drivers and co-drivers who want the convenience of wireless communication without losing wired compatibility or reliability. The Bell MAG-10 Rally WW Carbon Fiber Helmet FIA8859-2024 / SA2025 redefines rally communication. Order today and experience the perfect fusion of lightweight safety and cutting-edge technology.

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Bell GT6 RD-4C Carbon Fiber auto racing helmet FIA 8860 homologated

Bell Bell GT6 RD Carbon Fiber 4C/EC Helmet (SA2025/FIA 8859-2024) $1,799.95

Bell GT6 RD Carbon-4C/EC Helmet FIA 8859-2024 and SA2025 Approved The Bell GT6 RD Carbon-4C/EC delivers pro-grade safety and communication in a lightweight, closed-cockpit package. Drawing design inspiration from the aggressive HP6 platform, it features a wide eyeport for integrated visibility, a premium carbon composite shell, and all-in communications and hydration solutions built in. 4C: Carbon Composite 4 Layer Construction On Bell helmets, “4C” stands for “Carbon Composite 4 Layer Construction.” It refers to the shell technology Bell uses: a 4-layer carbon composite laminate. This blend typically combines carbon fiber with other advanced fibers (like Kevlar® or fiberglass) in multiple layers. The purpose is to deliver a shell that is lighter than fiberglass alone, but more affordable and versatile than Bell’s top-end full carbon HP series shells (like HP7 or HP77 which use pure carbon/advanced aerospace layups). Carbon-4C/EC” in model name means the helmet is a Carbon Composite 4-layer shell with EC (electronic comms) kit integration. Ultra-Light Carbon Construction Meets Pro Racing Preparedness Built with superior carbon-glass composite materials, the helmet keeps fatigue low and track awareness high. Integrated ZeroNoise® electronics, high-power speakers, and a noise-canceling mic ensure outstanding comms and sound insulation. The face piece is also optimized for ventilation and hydration—perfect for endurance and closed-cockpit racers. BELL GT6 RD Carbon-4C/EC HELMET DETAILS Design Derived From: HP6 RD-4C platform Shell: Ultra-lightweight carbon-glass composite Certifications: FIA 8859-2024 and Snell SA 2025 Eyeport: Wide for expanded visibility ZeroNoise® Comms: Built-in speakers, noise-canceling mic, and heavy-duty coil cable with Nexus connector Hydration: Integrated drink-tube channels and side connectors Ventilation: Extraction vents + optional top/side forced-air intake compatibility HANS Anchors: Factory-installed for added safety Color & Finish: Gloss Carbon Interior: Dark grey, high-strength FR fabric (alt interior colors by special order) Sizes: 54 (6¾) through 61+ (7 ⅝) BELL GT6 RD Carbon-4C/EC HELMET FEATURES ZeroNoise® comms system with integrated hardware Hydration-ready channels and connectors Exhaustive airflow design with optional accessory compatibility Carbon shell with impact-absorbing multi-density liner Wide eyeport ideal for closed-cockpit sight lines Optional ear muff covers for enhanced noise insulation Compatible with drink-tube and radio system integration Factory HANS anchor integration for maximum safety Bell GT6 RD Carbon-4C/EC Helmet SIZE CHART Bell GT6 RD Carbon-4C/EC HELMET FAQs What does “4C/EC” mean?4C stands for Carbon-Glass Composite shell, and EC indicates electronic communication and hydration integrations are factory-installed. Which helmet series does this come from?Derived from the closed-cockpit GT6 platform with HP6 lineage—designed for serious GT and endurance racers. What communication system is included?An integrated ZeroNoise® kit with high-power speakers, a noise-canceling mic, Nexus connector, and hydration ports come built in. Can I add forced air later?Yes. Compatible top and side intake kits are available for enhanced cooling. Is this track-legal?Yes. It’s dual-certified to FIA 8859-2024 and Snell SA 2025—check your series rules to confirm. What customization options exist?Alternate interior colors, ear muff covers, and aero accessories are available by special order or as add-ons. Race with lightweight carbon construction, pro-level comms, and cockpit-focused visibility.

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Bell Bell GT6 RD Carbon-4C Helmet SA2025 $1,799.95

Bell GT6 RD Carbon-4C Helmet The Bell GT6 RD Carbon-4C is a closed-cockpit performance helmet built for drivers who want ultra-light carbon construction with integrated communications and hydration capability out of the box. A wide eye port, refined aerodynamics, and efficient ventilation keep vision clear and fatigue low through long stints. 4C: Carbon Composite 4 Layer Construction On Bell helmets, “4C” stands for “Carbon Composite 4 Layer Construction.” It refers to the shell technology Bell uses: a four-layer carbon composite laminate. This blend typically combines carbon fiber with other advanced fibers (like Kevlar or fiberglass) in multiple layers. The purpose is to deliver a shell that is lighter than fiberglass alone, but more affordable and versatile than Bell’s top-end full carbon HP series shells (like HP7 or HP77, which use pure carbon/advanced aerospace layups). In this helmet, "RD-4C” means the helmet is a Carbon Composite 4-layer shell with RD (radio/drink) kit integration. Designed for GT and Closed-Cockpit Racing The RD configuration includes electronic ear cups and drink-tube routing for clean, reliable comms and hydration in noisy, high-heat cabins. Internal channels manage airflow across the crown and face, and the shell profile is tuned for stability with optional aero accessories. Bell GT6 RD Carbon-4C Helmet Details Manufacturer: Bell Helmets Construction: lightweight 4C carbon-composite shell Configuration: RD (integrated electronic ear cups and hydration routing) Interior: fire-resistant comfort liner Orientation: closed-cockpit optimized, wide eyeport Hardware: factory-installed M6 HNR terminals Finish: gloss carbon-composite Shield: clear shield installed (tinted/iridium options available separately) Key Features Ultra-light carbon shell for reduced fatigue and quick head-turn response Multi-density, multi-piece liner for impact energy management Integrated channels for radio wiring and drink-tube routing Wide eye port for enhanced lateral vision in GT cars Efficient intake/extraction paths to promote airflow in warm cabins Compatible with optional top-forced-air and aero kits (rear spoiler, gurneys) Sealed eye port gasket to help reduce dust and moisture ingress Bell GT6 RD Carbon-4C Helmet FAQs What does “RD” mean on this model?RD indicates the helmet is set up for radio communications and drink-tube routing, with electronic ear cups installed for improved audio clarity. Is this helmet optimized for closed-cockpit use?Yes. The GT6 platform is tailored for GT and closed-cockpit cars, with a wide eyeport for peripheral vision and venting tuned for in-car airflow. Can I connect a top forced-air system?Yes. The shell accepts optional top forced-air kits, allowing you to feed cooled air into the helmet for longer stints and hotter events. Are hydration and radio systems included?The RD configuration provides integrated routing and ear cups; specific drink and radio hardware is typically added to suit your team’s setup. Does it include HNR anchor points?Yes. Factory-installed M6 HNR terminals are fitted for head-and-neck restraint compatibility. Which shield options are available?A clear shield is installed. Tinted and iridium options are available separately to suit lighting conditions and driver preference. Lightweight carbon construction, integrated comms/hydration, and closed-cockpit visibility make the Bell GT6 RD Carbon-4C a smart upgrade for serious GT drivers. Order yours from Thunder Hill and get race-ready support.

Alpinestars Alpinestars GP Tech v4 Driver Suit FIA $1,799.95

Alpinestars GP Tech v4 Driver Suit FIA Ever dreamt of suiting up in gear that makes you feel invincible on the track? Well, dream no more. Introducing the Alpinestars GP Tech v4 Driver Suit - where cutting-edge technology meets unparalleled comfort. Features & Benefits of the GP Tech v4: Exclusive Outer Shell Material: Developed just for Alpinestars, this twill material isn't just about looking sleek. It's about giving you that edge. Aramidic-Based Knit Lining: Imagine the comfort of your favorite pajamas but with the protection of a knight's armor. That's what this innovative lining offers. Plus, it's lightweight, so you won't feel like you're dragging a chainmail around the track. Super Breathability: Thanks to the aramidic base lining with its open weave structure, you'll feel the breeze even when you're burning rubber. And with added breathable panels on the side, you'll stay cooler than the other side of the pillow. Stretchable Panels: Strategically placed at the center back, lower back, elbow, crotch, and knee zone. Because who said you can't be flexible while going full throttle? Advanced Three-Layer Construction: Ensures breathability, maximum comfort, and effective regulation of body temperature. It's like having a personal AC unit. Anatomically Engineered Design: Pre-curved arms and legs mean you fit into this suit like a glove. Or, more accurately, it fits you. Formula 1-Derived Stretch Panels: Located on the lumbar area, elbows, knees, and crotch for that extra oomph in flexibility. Enhanced Breathability Areas: More ventilation because let's face it, racing is sweaty business. All-New Extraction Handle: A safety feature straight from Formula 1. Because your safety is our top gear. Lightweight Knitted Cuffs: For that snug feeling without the weight. Soft Collar with Knit Fabric: No more scratchy necks. Just pure comfort. Elastic Waist Construction: Because one size should fit YOU. Printed Logos: Helps maintain the suit’s integrity and reduces weight. Plus, it looks pretty darn cool. Premium YKK Metal Zipper: For when you need to get in and out in a flash. Thigh Pockets: Because where else would you keep your secret racing snacks? Athletic-Regular Fit Design: Look good. Feel good. Race even better. Certified to FIA 8856-2018: Because we're all about keeping you safe in style. Alpinestars GP Tech v4 FAQs: What rating are FIA race suits? They are certified to the FIA 8856-2018 homologation standard. Are racing suits fireproof? Absolutely! They're designed to protect you from fire hazards on the track. How long do FIA race suits last? Typically, they have a life span of about 3-5 years, depending on usage. What does FIA approved mean? It means the suit meets the strict safety and quality standards set by the Fédération Internationale de l'Automobile. Can you wash a fireproof racing suit? Yes, but always follow the manufacturer's instructions to maintain its integrity. What is the difference between FIA and SFI? Both are governing bodies that set safety standards, but FIA is international while SFI is primarily US-based. What should I wear under my race suit? It's recommended to wear fire-resistant undergarments for added protection. Ready to unleash the beast? Don't just be a racer; be a legend. Suit up in the Alpinestars GP Tech v4 Driver Suit and dominate the track.

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