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Thunderhill is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most Girodisc products the same or next business day to ensure we meet your delivery deadline. Fits Nissan GT-R (CBA) 2007-2011 w/ 380mm stock rotors The Girodisc system is a direct replacement for the OE disc, they will bolt directly to the car and work with OE calipers perfectly. The central hat section of the Girodisc rotor is made from strictly USA-sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's 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 forcing cool air through the disc. The disc and hat have a floating mount system, which utilizes 12 high-strength alloy steel drive pins, manufactured in the US by Girodisc and cadmium plated for long-lasting corrosion resistance. These pins take the loads from braking while maintaining the axial and radial float between the hat and disc. They are secured by class 12.9 cap screws and hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise springs on the disc side, allowing the iron disc to expand as it heats up while eliminating the rattle and noise commonly associated with floating rotors. This float also allows the rotor to self center between the brake pads. Once the Girodisc system is in place, you simply replace the cast iron discs when needed. This reduces cost over time by allowing you to re-use the aluminum central hats. Sold/priced per pair

Thunderhill is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most Girodisc products the same or next business day to ensure we meet your delivery deadline. Fits Nissan GT-R (DBA) 2012+ w/ 390mm stock rotors The Girodisc system is a direct replacement for the OE disc, they will bolt directly to the car and work with OE calipers perfectly. The central hat section of the Girodisc rotor is made from strictly USA-sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's 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 forcing cool air through the disc. The disc and hat have a floating mount system, which utilizes 12 high-strength alloy steel drive pins, manufactured in the US by Girodisc and cadmium plated for long-lasting corrosion resistance. These pins take the loads from braking while maintaining the axial and radial float between the hat and disc. They are secured by class 12.9 cap screws and hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise springs on the disc side, allowing the iron disc to expand as it heats up while eliminating the rattle and noise commonly associated with floating rotors. This float also allows the rotor to self center between the brake pads. Once the Girodisc system is in place, you simply replace the cast iron discs when needed. This reduces cost over time by allowing you to re-use the aluminum central hats. Sold/priced per pair

Forgeline FL500 The Forgeline FL500 Heritage Series wheel pays homage to the classic Magnum 500 wheel. But unlike its predecessor, the FL500 is a modern 3-piece wheel manufactured from fully forged 6061-T6 aluminum centers using the latest engineering and manufacturing technology. A traditional five-spoke design with inverted tapered spokes, the FL500 evokes a very traditional old-school muscle car character while delivering modern technology and performance. The FL500 is built with true forged 6061-T6 aluminum centers, aircraft-quality ARP stainless steel hidden fasteners, and heat-treated rim sections. The FL500 is designed with a flat lip reverse outer in 18-inch, 19-inch, and 20-inch fitments. The FL500 is priced with a standard powder coated and HTM (High Tech Machined) center finish combined with a polished outer rim. Three-Piece Heritage Series Wheel Classic 5-Spoke Design Flat-Lip Reverse Outer Hidden ARP Fasteners Forged 6061-T6 Aluminum Center Heat-Treated Rim Shells Includes Standard Aluminum Center Cap Price Includes Standard HTM Center Finish Customizable Fitment and Finish Options Legendary Forgeline Quality and Customer Service

FITS: McLaren MP4-12C (w/ steel rotors) This Girodisc system is a direct replacement for the original-equipment steel rotors on the McLaren MP4-12C. Girodisc's 380mm rotors are larger than the 370mm OEM rotors and come with machined aluminum caliper spacers. 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 two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to the MP4-12C front and work flawlessly with the OEM calipers using the supplied spacers.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.

FITS: Ford GT (2005-06) 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 two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your Ford GT 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.

FITMENT (REAR): Ford GT 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. This Girodisc system is an upgrade to a two-piece steel rotor and aluminum hat combination as a direct replacement for the OEM brake discs. The Girodisc floating rotors will bolt directly to your Mustang and work flawlessly with OEM calipers. 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 effectiveness and efficiency. These 20-lb. Girodisc rotors are lighter than OEM pieces, resulting in a reduction in rotational and unsprung weight allowing for quicker acceleration, stronger braking, and faster suspension response. When used with Pagid or PFC performance brake pads, and Thunderhill RF-1 brake fluid, you have the best possible 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 rotor only replacement as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

This Girodisc iron rotor conversion is a direct replacement for the OE carbon ceramic disc with no modifications needed. The central hat section of the Girodisc rotor is made from strictly USA-sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's 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 forcing cool air through the disc. The disc and hat have a floating mount system, which utilizes 12 high-strength alloy steel drive pins, manufactured in the US by Girodisc and cadmium plated for long-lasting corrosion resistance. These pins take the loads from braking while maintaining the axial and radial float between the hat and disc. They are secured by class 12.9 cap screws and hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise springs on the disc side, allowing the iron disc to expand as it heats up while eliminating the rattle and noise commonly associated with floating rotors. This float also allows the rotor to self center between the brake pads. Once the Girodisc system is in place, you simply replace the cast iron discs when needed. This reduces cost over time by allowing you to re-use the aluminum central hats. Sold/priced per pair

BELL XR7 Carbon Fiber FIA8859-2024/SA2025 HELMET The Bell XR7 Carbon is built for serious track work: featherweight strength, crisp visibility, and cooling that actually keeps up during long sessions. With dual certification to FIA 8859-2024 and Snell SA2025, it checks the boxes for club, pro-am, and many pro-level series while keeping comfort and focus front and center. BELL XR7 CARBON FIBER SA2025 HELMET FEATURES Carbon fiber shell engineered for high impact energy management while minimizing weight for reduced neck fatigue on long stints Dual homologation: FIA 8859-2024 and Snell SA2025 for broad series acceptance in the U.S. and internationally Refined aerodynamics help stabilize the helmet at speed and reduce lift and turbulence in open- and closed-cockpit cars Multi-channel ventilation promotes steady airflow to manage heat and visor fog in hot, humid conditions SE07 DSAF clear shield included for durable anti-fog performance and wide, distortion-free field of view Hydration and radio ready with ports designed for clean installs and quick pit-lane connections Removable, replaceable interior padding to dial in fit and keep things fresh through the season BELL XR7 CARBON FIBER SA2025 HELMET SIZE CHART BELL XR7 CARBON FIBER SA2025 HELMET FAQS When will the Bell XR7 Carbon be available? Delivery timelines vary by size and finish; pre-order to secure earliest allocation for the upcoming season. Is the XR7 Carbon legal for FIA events? The FIA 8859-2024 approval covers many international series; always confirm with your sanctioning body and rulebook. How does the XR7 compare to RS7 and X7D models? XR7 targets a lightweight, dual-certified spec with race-day ventilation and stability; RS7 and X7D occupy adjacent weight/feature positions depending on series needs. Can I add hydration and comms? Yes. The shell and liner are designed for tidy hydration tube routing and radio kit integration without compromising fit. Step into the grid with a helmet that blends modern certifications, low weight, and track-proven cooling. Reserve yours to be ready for the season opener.

Bell X7D Carbon FIA8859-2024/SA2025 Helmet The Bell X7D Carbon FIA8859-2024/SA2025 is a brand-new professional-level helmet engineered for drivers who demand uncompromising safety, lightweight strength, and advanced comfort. Certified to both the FIA 8859-2024 and Snell SA2025 standards, it’s built for everything from pro-level competition to track days where cutting-edge gear makes the difference. Dual certification with advanced carbon construction BELL X7D CARBON FIBER SA2025 HELMET FEATURES Ultra-lightweight carbon fiber shell built using Bell’s high-pressure molding process Dual homologation: FIA 8859-2024 and Snell SA2025 for maximum acceptance worldwide Refined aerodynamic shape reduces lift and drag at high speed 14-channel ventilation system delivers superior airflow and cooling Pre-installed HANS anchors and hydration/communication system compatibility SE07 DSAF anti-fog visor included for clear visibility in all conditions Interior optimized for noise reduction and long-duration comfort BELL X7D CARBON FIBER SA2025 HELMET SIZE CHART BELL X7D CARBON FIBER SA2025 HELMET FAQs What makes the Bell X7D Carbon unique? The X7D combines a carbon shell with dual FIA and Snell certification, making it versatile for international racing series and domestic events. Is this helmet legal for FIA-sanctioned racing? Yes, the FIA 8859-2024 approval ensures it’s eligible for many international racing categories, while the SA2025 certification covers U.S. competition. Can I use hydration and radio systems with the X7D? Absolutely. The helmet is designed for seamless integration of hydration tubes and radio communication equipment. How does it compare to the Bell RS7 Carbon? The X7D is positioned as a next-generation carbon helmet with updated FIA certification, offering broader acceptance for pro-level competition. Step up to the Bell X7D Carbon FIA8859-2024/SA2025 and race with a helmet that meets the highest safety standards while keeping weight to a minimum.

The Compact Color TFT Dash For Road Use WIDE RANGE OF DATA & DISPLAYS MXS 1.3 Strada is a beautifully-designed, feature-rich color digital dash display. It is basically the MXS 1.3 without the datalogging function. The MXS 1.3 Strada features a compact 5" High Contrast TFT color screen with great visual impact, configurable to show lap times, RPM, and a huge range of info coming from your Engine Control Unit, analog/digital inputs, pre-defined math channels and an optional GPS08 Module. Programmable multicolor shift and alarm LEDs round out an incredibly powerful package. There's even a version with "Street Icon" LEDs instead of the traditional "plain" LEDs! The MXS 1.3 Strada displays your RPM, selected gear, speed, plus all the data you choose (water temp, oil pressure, trans temp, lap times and much more) in either pre-configured or user-customized pages. Swapping between pages is as easy as pushing buttons. Plus the MXS 1.3 Strada puts a huge amount of control over your car's systems at your fingertips. INPUT & OUTPUT FLEXIBILITY Eight fully configurable analog input channels can sample, log, and display a wide range of temperatures, pressures, and potentiometers (throttle position, steering wheel position, etc). Choose between OBDII and CAN/RS232 versions to suit your needs and level of customization. Both receive rich data from your ECU. An OBDII input connection is an easy, plug-and-play option. A hardwired CAN input allows you to further expand the dash by adding an almost limitless number of AiM CAN Data Hubs (Part No. MC-329, sold separately). These hubs let you connect other inputs such as Lambda Controller (O2), SmartyCam, or even channel expansion hubs, without using any analog channels. A separate CAN output allows you to send messages to your car's existing CAN network, adding to the vehicle system control possibilities! ALARMS & SHIFT LIGHTS The ten multicolored RGB shift lights can be customized to define the max RPM for each single gear. The same flexibility applies to the configurable RGB alarm LEDs: you can configure them to turn on/off depending on analog or digital inputs, ECU values, expansion values, math channels or GPS information (with the optional GPS08). You choose conditions, colors, and select a solid alarm or flashing one (including flash frequency). It's also possible to configure an accompanying text message. DIGITAL OUTPUT The MXS 1.3 Strada features a low-side (switch to ground) digital output that can be configured to activate/deactivate external systems (switch on/off additional lights, cooling fan relays, fluid circulation pumps, etc.) based on those inputs. RACE STUDIO 3 INTEGRATION MXS 1.3 Strada is configured using your PC and Race Studio 3. You can create, customize, delete, import and export configurations with all channels, ECU drivers, Math Channels, Display Pages, Digital Output, Alarms, Shift Lights and all the expansions you need. TECHNICAL SPECS: Compact 6.7" x 3.8" x 0.9" anodized aluminum housing 5" TFT high-contrast color display Choose Standard or Street Icon LEDs Screen resolution 800x480 pixels Weight 1 lb. (480g) Waterproof IP65 KIT INCLUDES: MXS 1.3 Strada digital dash USB cable 14-pin standard wiring 23-pin Connector + contacts Installation CD with Race Studio 3 software All sensors and modules sold separately.

BBS FS Die-Forged Line Exclusive Wheels (Bolt Pattern 5 x 112) Call and talk to a Thunderhill custom wheel specialist at (844) 438-7244. We'll make sure you get the set of wheels you've always wanted at a price no one can beat. The Die-Forged Series of wheels by BBS offers exceptional weight savings through industry-leading FEA (Finite Element Analysis) without compromising design, strength or build quality. Available in a wide range of sizes, finishes and bolt patterns, the Die-Forged Series offers legendary BBS quality for nearly every application. WHEEL WEIGHTS 19x8.0: 20.6 lbs. 19x8.5: 20.2 lbs. 19x9.0: 20.5 lbs. 19x9.5: 22.2 lbs. FEATURES Bolt Pattern: 5 x 112 One-Piece Die Forged Aluminum Wheel Weight optimized by FEM analysis Centerbore: PFS (Precision Fitment System) While many popular fitments are stocked and ready to ship, some fitments are made to order, increasing lead times. Check with a Thunderhill wheels specialist at (844) 438-7244 for a complete quote and estimated lead time. Some finishes may not be available on all fitments. Prices and weights are per wheel.

Thunderhill is an authorized dealer for GiroDisc products. As 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 Mercedes E63 AMG The GiroDisc system is an upgrade to a two-piece steel rotor and aluminum hat combination; it is a direct replacement for the OEM brake disc. The two-piece floating disc will bolt directly to your 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 brake bias is maintained as well as your ABS efficiency. GiroDisc rotors are lighter than OEM pieces. The reduction in rotational and unsprung mass (approx. eight pounds per corner!) allows for quicker acceleration and suspension response. When used with GiroDisc Magic Pads for the street, Pagid or PFC racing brake pads for the track, and Thunderhill RF-1 brake fluid (all available from Thunderhill), 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 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 rotor only replacement as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

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 Mercedes SLS AMG 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 (approx. 8 lbs) allows for quicker acceleration and suspension response. When used with Pagid or PFC performance brake pads, and Thunderhill 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.

FITS: Audi RS4 B8/B9 Audi R8 Audi RS5 Audi RS6 Lamborghini Gallardo Lamborghini Huracan LP580-2 (w/OEM steel rotors) 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 365mm OEM brakes to a 380mm two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your Audi or Lamborghini 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.