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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 Tesla Model S and Model X Rear Only The GiroDisc system 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 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.

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 Tesla Model S and Model X Front Only The GiroDisc system 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 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.

Stilo ST5.1 GT Offshore Composite Helmet SA2020 Stilo ST5.1 GT Offshore -- The Legend Returns The Stilo ST5.1 GT Offshore SA2020 helmet carries over everything that made the Stilo ST5 GT one of the most-loved helmets in motorsports. Featuring the same tall eyeport and iconic side ports of the previous generation, the ST5.1 GT from Stilo is worth getting excited about. The Offshore version, with its easy-to-spot bright orange shell, is already wired up for communications through the left-side port. One of the great things about Stilo GT Series helmets is their adjustability using Stilo helmet padding. Crown padding, cheek padding and different ear muff sizes are all available to customize the fit of your Stilo helmet. Stilo GT Helmets Feature Unrivaled Features and Flexibility The Stilo ST5.1 GT Offshore Composite is unsurpassed in built-in flexibility. Each of its two side ports can be fitted with one of three different types of integrated communication electronics, forced air, or a hydration system. Thanks to its innovative shell design, mounting and routing these options to the Stilo ST5.1 GT Offshore is sleek and seamless. When not in use, you don't even know the features are there. Stilo offers simply the best modular racing helmet on the market. This helmet includes communications pre-installed in the left port. Stilo ST5.1 GT SA2020 Offshore Composite Helmet Orange Details: Manufacturer: Stilo Manufacturer part number: DA0702BF2T Color: Orange Homologation: Snell SA2020 Shield lock position: center Replaceable cheek pads: yes Noise attenuating earmuffs: yes Sizes: XS to XXXL (54cm to 64cm) Additional Stilo ST5.1 GT Offshore helmet shields available here A Note on Stilo Sizing: We have found that customers who wear a 59cm helmet in other brands are most comfortable in a 60cm Stilo ST5.1 GT Composite, which uses the larger shell size. This helmet will ship to you with signature required for delivery.

Lifeline Zero 360 FIA 2.25kg Novec 1230 Electric Activation System Ground Shipping Only. Pressurized bottles cannot be shipped via air. The latest range of Lifeline range of Zero 360 car fire extinguishers are the result of extensive research and development. Novec™1230 Zero 360represent a significant step forward in motorsport safety, convincingly passing the FIA tests conducted by the British Standards Institute and observed by the MSA. This series of systems has been awarded FIA homologation number EX.042.17 Novec™1230 Zero 360 has moved the boundaries of motorsport car fire extinguishers. Using only the finest materials in both its construction and installation kit this system performed extremely well in the FIA tests for plumbed in fire systems which were witnessed by the British Standard Institute. The Novec™1230 Zero 360 range of car fire extinguishers are significantly smaller and lighter than the current generation of FIA certified foam systems, offering far better packaging within the confines of the modern competition vehicle. The Stored Pressure Electric System is an excellent option for the serious competitor. Electrically operated by the push of a button. This system is is perfect for all categories of motorsport. FEATURES: FIA Homologated Smaller and lighter than ever! Bottle length 10.5" top of handle to bottom of bottle 2.25kg of 3M™ Novec™1230 liquid clean agent extinguishant Highest quality Constant discharge in any orientation Excellent fire knock down and fire out capabilities Two year service cycle The choice of world championship winning constructors KIT INCLUDES: Power Pack (x 1) Push Button (x 2) Plug & Lead (x 2) 8mm Tube (x 6m) Heatproof Over Braid (x 6m) Nozzle Straight Inlet (x 2) Double Z Nozzles (x 3) 8mm T Connector (x 1) Bulkhead Fitting (x 1) Pipe Clip (x 2 packs) Decal Pack (x 1) 8mm 4 way equal cross (x 1) Bracket and Straps (x 1)

BELL GT6 RD 4C/EC SA2025 HELMET Pre-Order: Shipping in July 2026 IMSA Comms, Hydration, and ZeroNoise® in a Race-Ready Shell Built for serious endurance and GT drivers, the Bell Racing GT6 RD 4C/EC Helmet brings full comms and hydration integration into a track-ready shell without compromise. With its titanium finish, aggressive HP6-derived design, and wide eye port for visibility in tight cockpits, this is the helmet for those who treat every lap like a qualifying session. The GT6 RD 4C/EC is ready for IMSA communication and hydration systems right out of the box—because seconds count, even off the throttle. 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). In the case of this Carbon-4C/EC model, the helmet is a Carbon Composite 4-layer shell with EC (electronic comms) kit integration. BELL GT6 RD 4C/EC SA2025 HELMET FEATURES Integrated IMSA Radio & Hydration System: Comes pre-installed with electronics and tubing for plug-and-play connection to your team’s radio and drink system. 4C/EC Carbon-Glass Composite Shell: Lightweight and high-strength, built from premium carbon-glass for optimal energy absorption and all-day wearability in long stints. ZeroNoise® Advanced Electronics: Equipped with high-power speakers, a noise-canceling microphone, and superior sound insulation for crisp in-car communication even in loud environments. Wide Eyeport: Offers exceptional lateral and vertical visibility, ideal for closed-cockpit racing where every degree of vision matters. Track-Proven Ventilation: Strategically placed intake ports can be connected to cooling systems for maximum airflow in hot race conditions. Standards: Dual certified to FIA8859-2024 and Snell SA2025 for maximum track-day and competition eligibility. BELL GT6 RD 4C/EC SA2025 HELMET SIZE CHART BELL GT6 RD 4C/EC SA2025 HELMET FAQs What’s the difference between the GT6 and the GT6 RD? The GT6 RD includes factory-installed IMSA radio comms and hydration ports, while the standard GT6 does not. Is this compatible with ear buds or over-ear speakers? Yes, the 4C version supports both ear cups and ear buds depending on your personal or team setup. Uses IMSA connections. What is ZeroNoise® and why does it matter? ZeroNoise® is Bell's advanced audio platform, engineered for crystal-clear in-car communication with minimal distortion and maximum driver focus. Can I use this helmet for endurance racing? Absolutely. With comms, hydration, and a lightweight carbon-glass shell, it's made for long hours in the car at high intensity. The Bell GT6 RD 4C is the pro’s choice when comfort, comms, and clarity matter most. From sprint races to 24-hour stints, this helmet brings together titanium-level fit, cutting-edge audio, and pure performance.

BELL RS7 K ULTRA-LIGHT CARBON FIBER KARTING HELMET The RS7K Carbon, based on the RS7C LTWT developed in collaboration with Penske Racing, is designed for the professional kart racer who knows weight and optimal performance are linked. The RS7K Carbon is the karting-only version (non-fire retardant, extra durable interior) of the LTWT series and is the lightest adult karting helmet available on the market weighing under 2.75 pounds race-ready. The helmet features a lightweight carbon shell, an innovative shell and recessed shield design to improve acoustic comfort while enhancing aerodynamic performance and energy-absorbing capabilities. The sleek, modern design incorporates an advanced ventilation system, Double Screen Anti-Fog (DSAF) shields, and a rubber gasket seal that ensures that water does not enter the eye opening in rainy conditions. Aerospace grade ultra-lightweight carbon shell Advanced multi-density, multi-piece liner to maximize energy absorption and impact performance Multi-purpose fit system that can be used with or without ear cups (ear cups included) Optical grade injection molded Double Screen Anti-Fog (DSAF) visor for anti-fog control and superior visibility Powerful and effective top and chin bar ventilation system with 14 air intake and extraction channels for maximum ventilation Shell and shield design optimized to improve aerodynamic performance, reduce internal noise, and enhance energy management capacities Rear spoilers, top gurney, and chin bar gurneys available separately Non-fireproof lining for extra durability RS7K Carbon is NOT compatible with head and neck restraint anchor systems or devices Synthetic rubber gasket seal to prevent dirt and water from entering the helmet Shield and pivot kit: SE07 3mm, SV(SE07,SE077) Homologation: Snell K2020 approved Alternative interior fabric colors: Black, Blue, Green, Red, Tan, Violet, White and Yellow (by special order) Color: Carbon Gloss Clear Sizes: 7 1/8- (57-) to 7 5/8+ (61+) This helmet will ship to you with signature required for delivery.

OMP RT Racing Seat FIA 8855-1999 Where Comfort Meets High-Octane Performance! Buckle up, the OMP RT Seat is here to redefine your driving throne. No more compromises between comfort and performance; this seat is the co-pilot you've always dreamed of, ready to elevate your driving game to podium finishes. Why the OMP RT Seat is Your Car's New Best Friend With its sleek carbon fiber or robust fiberglass ergonomic shell design, the OMP RT isn't just a seat; it's a statement. Strength, safety, and featherlight weight all wrapped up in one stylish package. Those removable pads aren't just for show. Crafted in luxurious leather or suave alcantara trim, they're your personal shock absorbers, turning every bump in the road into mere whispers. FIA-rated Seal of Approval With FIA 8855-1999 certification, this throne isn't just for the looks; it's built to keep you secure as you chase those checkered flags, making it a trusty steed for both the street and the circuit. Deep side bolsters and wrap-around shoulders ensure you're snug and secure, letting you take on those hairpin turns like a pro. Whether you're in a three-pointer or a four-point aficionado, the OMP RT is ready to lock you in for the ride of your life. Side mounting with 290mm bolt hole spacing means you'll be track-ready in no time, compatible with OMP mounts or your favorite brand. Specs to Brag About Seat Material: Your choice of high-grade carbon fiber or fiberglass, because who doesn't love options? Certification: FIA 8855-1999 homologated, because your safety is non-negotiable. Comfort Features: Ergonomic shape with removable soft padded inserts in fine alcantara or leather, innovative shoulder harness slots, wide leg cushion, and a lowered side for easier cockpit access. Imagine sliding into a seat that feels like it was made just for you, wrapping you in a cocoon of comfort and safety as you rev up your engine. The OMP RT Seat isn't just part of your car; it's part of your racing DNA, designed to keep you focused, in control, and comfortable, whether you're navigating the daily commute or pushing the limits on the track. Ready to Sit Down and Stand Out? Don't just dream about that perfect driving experience; make it a reality. Upgrade to the OMP RT Seat today and transform every drive into a victory lap. Click to buy now and secure your seat in the hall of fame! Bucket racing seat in fiberglass or carbon fiber FIA 8855-1999 homologated. The ergonomic shape and the removable soft padded inserts upholstered in fine material make the seat comfortable in every condition, from tuning to racing. Innovative shoulder harness slots design, wide leg cushion to improve driving comfort and lower side to facilitate the cockpit access.

Pagid Racing Brake Pad Shape No. 4581 Fits These Vehicles: Make Model Build (Year) Front Rear Ferrari 458 Speciale [ceramic brakes] 2013 - X Ferrari 488 [ceramic brakes] 2015 - X Ferrari 488 Pista [ceramic brakes] 2018 - X Ferrari F8 Tributo [ceramic brakes] 2019 X Fits the Following Caliper: Make Type Remarks Shape No. Brembo Extrema 4-piston 15mm 4581 Pagid Racing Brake Pads are engineered for high-performance driving, delivering exceptional stopping power, durability, and control under the most demanding conditions. Trusted by professional racers and performance enthusiasts worldwide, these pads are crafted using advanced friction materials and cutting-edge technology to ensure consistent performance, low fade, and excellent modulation. Whether you're on the track or tackling aggressive street driving, Pagid Racing Brake Pads provide the reliability and confidence you need to push your vehicle to its limits. Pagid Racing Brake compounds are for steel (cast iron) rotors only unless otherwise noted. Pagid RSC 1 Compound (Ceramic Rotors Only) A race and track day compound for all known types of ceramic brake discs, RSC 1 is a low metallic resin bonded material containing steel and aramid fibers. This material features good all-round characteristics and is suitable for all types of usage. Pagid RSL 1 Compound Used in GT cars, touring cars and prototype endurance racing. Due to the high friction and good modulation, often used in sprint races as well. RSL 1 is a low metallic resin bonded material containing steel and aramid fibers with very high heat resistance. It maintains a constant friction level over a wide range of temperatures. Its reduced wear rate and disc friendliness make this material appropriate for endurance races.

Lifeline Zero 360 SFI 10lb Novec Mechanical + Single Auto Activation System Expedited shipping of complete systems is available. Additional handling charges apply. Please call for a shipping quote. Lifeline Fire and Safety Systems has applied over 25 years of Motorsport safety knowledge and unparalleled experience to develop a lightweight and compact SFI compliant 10lbs fire suppression system featuring both mechanical and automatic activation in one! Two aluminum nozzles disperse the gaseous, clean agent 3M Novec 1230 upon mechanical activation, or a fast acting single automatic nozzle diverts suppressant to the source of the fire requiring no input from the occupant(s) - either of which provides a high level of fire suppression capability with no residue and no electrical system damage. We offer the choice of Aluminum or Steel tubing to meet a range of sanctioning requirements, plus 1.5" or 1.75" cage clamps to easily secure your bottle in place. SFI 17.1 Certified.

Lifeline Zero 360 SFI 10lb Novec Mechanical + Dual Auto Activation System Expedited shipping of complete systems is available. Additional handling charges apply. Please call for a shipping quote. Lifeline Fire and Safety Systems has applied over 25 years of Motorsport safety knowledge and unparalleled experience to develop a lightweight and compact SFI compliant 10lbs fire suppression system featuring both mechanical and automatic activation in one! Two aluminum nozzles disperse the gaseous, clean agent 3M Novec 1230 upon mechanical activation, or two fast-acting automatic nozzles divert suppressant to the source of the fire requiring no input from the occupant(s) - either of which provides a high level of fire suppression capability with no residue and no electrical system damage. We offer the choice of Aluminum or Steel tubing to meet a range of sanctioning requirements, plus 1.5" or 1.75" cage clamps to easily secure your bottle in place. SFI 17.1 Certified.