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Simpson
Simpson Hybrid S 3-Point FIA Head and Neck Restraint
$1,152.95
$1,282.00
Simpson Hybrid S 3-Point Head and Neck Restraint
The Hybrid S Head Restraint is FIA and SFI approved (when worn with a multi-point harness system) and is tested and shown to be compatible with 3-point harnesses used by Car Club enthusiasts and High Performance Driving Experiences. This allows Driving Instructors, Auto Manufacturing Test Engineers, and others in cars with 3-point harnesses to have added protection.
We are pleased to offer this great option for increased protection to this sector of the market. Bear in mind, however, that on a racetrack the best protection we believe is a Full-Containment Cockpit System that includes a full containment seat, Snell SA2015 or FIA 8860 rated helmet, FIA or SFI approved head restraint, and 6- or 7-point racing harness system.
Simpson Hybrid S Head and Neck Restraint Notes:
Select your size based on the size chart
Thunderhill only carries this device with standard HANS post anchor clips as they're lightweight and easy to attach/detach
Simpson Hybrid S Head and Neck Restraint Details:
FIA and SFI Approved with 5-, 6- and 7-point harness systems
FMVSS Tested for use with 3-point OEM belt system
High quality carbon fiber construction
Low profile, no high back to hook on the roll bars, etc. in emergency exit
Multiple load paths to dissipate head loads
Buckle attachment in front, no bulky straps underneath
Simpson Hybrid S Head and Neck Restraint Installation:
To use a Hybrid S with a 3-point seat belt system, the SAS (Seatbelt Anchoring System) is not used. (The SAS strap anchor loops hook into the buckle of a 5-, 6- or 7-point racing harness.)
Have the wearer put on the Hybrid S and get into the driver's seat. Follow the instructions on fitting the device to the wearer.
Engage the 3-point seat belt and sit in the normal driving position.
Have a helper apply gentle pressure to the top of the device, keeping the device stable during tether adjustment. The device should be in a comfortable position behind the driver’s back, against the seat cushion.
With the helper holding the device and the driver looking straight forward, hold the triangulated tether up to the anchors on the driver’s helmet. Adjust the side tethers so that the end fitting can be easily inserted into the helmet anchor without pulling down on the helmet. A comfortable adjustment on the side tether is to have about ¼” of slack in the tethers.
With the helper still holding the device down and the driver looking straight ahead, adjust the rear tethers so that there is ½” to 1” of slack. Test the amount of head movement by moving the head straight forward. The driver should have 1” to 2” of forward head movement before the slack is taken out of the tether. Remember when checking this not to rotate the head down; translate it straight forward. This should allow for plenty of head movement on track.
Airbag Use with the Simpson Hybrid S Head and Neck Restraint:
No one should unhook or disable the airbag system installed by the auto manufacturer or their authorized installer. Outside experts in Detroit have confirmed this and require their test engineers to use the Hybrid S in conjunction with the airbag in a 3-point system. Simpson agrees that the airbag and Hybrid S work together to increase protection in frontal crashes.
Stilo
STILO Venti WRC Composite Helmet FIA 8859/SA2020
$1,150.00
Stilo Venti WRC Composite: Uncompromising Safety & Performance
FIA 8859-2015 and Snell SA2020 Certified
The new Stilo Venti WRC Composite auto racing helmet features lightweight construction using the smallest of three available shells for the smallest and lightest helmet available. Designed specifically for motorsport enthusiasts, the Stilo Venti WRC helmet is built to withstand the demands of high-speed racing, ensuring optimal safety during intense driving scenarios.
Stilo Venti WRC Composite helmet is FIA 8859-2015 and SA2020 certified. This Stilo Venti WRC helmet meets the highest safety standards set by those renowned organizations. It guarantees top-tier protection for professional and amateur racers alike.
With its unique ventilation system, the Stilo Venti WRC helmet offers superior airflow, keeping you cool and focused even during long races or under extreme conditions. Stilo Venti WRC helmet's aerodynamic design reduces drag, allowing for enhanced performance and improved stability at high speeds, giving you a competitive edge on the track.
The interior padding of the Stilo Venti WRC helmet can be easily removed and cleaned, ensuring a fresh and comfortable fit for every race.
Integrated Comms Package Leads the Rally Racing World
Stilo Venti WRC helmet is equipped with innovative noise-canceling features from the redesigned boom with all new geometry for maximum visibility and sound quality, this minimizes external distractions, allowing you to maintain focus and concentration on the track ahead. The Stilo Venti WRC helmet features an all new aggressive design featuring an adjustable visor, providing optimal visibility and allowing you to customize your field of view for different driving conditions.
The Stilo Venti WRC helmet is a professional-grade helmet trusted by professionals, the Stilo Venti WRC is the pinnacle of safety and performance in motorsport, offering uncompromising quality for your racing needs.
Invest in the Stilo Venti WRC helmet today and experience unparalleled safety, comfort, and performance on the racetrack. Dominate every curve with confidence and stay ahead of the competition.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. The new wireless key available allows the driver and co-driver to continue to communicate even when outside of the car.
The microphone boom shape has been improved to further deflect cabin noise, improving the communication clarity between co-driver and driver. The magnetic dynamic, noise-canceling microphone is adjustable to allow for optimum spacing from the mouth to reduce external noise. Noise attenuating ear muffs in the Stilo Venti WRC surround the speakers to hugely reduce external noise and improve the levels of comfort. The Stilo Venti WRC helmet's electronics is also compatible with traditional Stilo wired amplifiers or the new wireless amplifiers.
The adjustable peak of the Stilo Venti WRC helmet can be raised/lowered to give optimal visibility with low sun.
Supplied with factory fitted HANS Post anchors as standard.
Also Available with FIA 8860-2018 certification
How to Properly Measure Your Head
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.
Sparco
Sparco Stealth RF Carbon Helmet SA2025
$1,149.00
Sparco Stealth RF Carbon SA2025/FIA 8859-2024
The Sparco Stealth RF Carbon Helmet is built for racers who demand elite protection and comfort at the highest levels of motorsport. With a lightweight carbon fiber shell that exceeds the newest FIA 8859-2024 and Snell SA2025 standards, it delivers unmatched strength and energy absorption without the bulk. Sparco’s advanced ventilation system keeps you cool under pressure, while the fire-retardant, removable linings ensure lasting comfort throughout endurance sessions. Every detail of this helmet is engineered to perform—ready to race straight out of the box with factory-installed HANS/FHR posts.
Pure Carbon Performance. Pure Racing Focus.
SPARCO STEATH RF CARBON FIBER HELMET FEATURES
Lightweight Carbon Fiber Shell: Constructed from ultra-strong carbon fiber to minimize neck fatigue and maximize protection while maintaining an optimal weight balance.
Efficient Ventilation System: Multiple air intakes on the chin bar and top, combined with rear exhaust ports, help regulate airflow and reduce heat build-up during long stints.
Removable Fire-Retardant Linings: Easily removable and washable interior linings keep your helmet fresh and race-ready.
Optional Drink System Compatibility: Integrated ports make it simple to connect an optional hydration system for endurance events.
3-Position Adjustable Visor: Adjustable visor positions provide tailored airflow and visibility for varying track conditions.
Central Locking Visor Mechanism: The secure locking system ensures a firm seal and reliability at high speeds.
Factory-Fitted FHR Posts: Supplied ready for HANS/FHR use, meeting professional racing safety standards.
Dual Shell Sizes: Available in two shell sizes for precise fit and comfort.
Seven Size Options: Covers a wide range of head sizes to achieve a perfect racing fit.
Certifications: FIA 8859-2024 and Snell SA2025 approved for use in professional and amateur motorsport worldwide.
SPARCO STEATH RF CARBON FIBER HELMET SIZE CHART
SPARCO STEATH RF CARBON FIBER HELMET FAQs
Is the Sparco Stealth RF Carbon legal for FIA-sanctioned events? Yes, it meets FIA 8859-2024 and Snell SA2025 standards, making it approved for all major motorsport disciplines.
Does this helmet include HANS posts? Yes, it comes pre-installed with factory-fitted FHR (HANS) posts, ready for immediate use.
What sizes are available? The Stealth RF Carbon is offered in seven sizes across two shell molds, ensuring optimal comfort and fit.
Can I add a drink system? Yes, the helmet is pre-configured for an optional drink system setup, ideal for endurance and GT racing.
How do I clean the interior? The interior fire-retardant linings are removable and washable, allowing easy maintenance between races.
Take your racing experience to the next level with the Sparco Stealth RF Carbon Helmet — precision-built for uncompromised safety, cooling, and performance lap after lap.
Cobra
Cobra Sebring Pro-Fit Racing Seat
from $1,149.00
Cobra Sebring Pro-Fit Racing Seat
(Side Mounts Sold Separately)
The Cobra Sebring Pro-Fit is a world-class professional competition seat that is one of the safest and ergonomically correct seats available in the market. The Sebring Pro-Fit is incredibly rigid but is still the lightest seat in its class. The shoulders and head restraint areas are engineered for drivers up to 6' 2" while retaining the correct geometry between your shoulders, side-head restraints and harness slots for full functioning of a HANS/FHR device.
The Pro-Fit range has Cobra's unique Spacer fabric which is FIA compliant and aids driver comfort and cooling. Like all Cobra competition seats, the Sebring Pro-Fit is available in Standard and GT (+30mm) width to suit the broadest range of drivers. Designed by professional drivers for professional drivers, the Sebring Pro-Fit is the ultimate in safety, comfort and control.
The Diolen/GRP constructed shell makes this seat lighter and stronger than similar Fiberglass seats. All Cobra Pro-Fit seats come standard with mid-height back and lower seat cushions, but you can choose between optional ultra low or higher cushions to dial in the best possible driver comfort.
FEATURES:
HANS®/FHR compatible.
PRO-FIT custom padding system.
4/5/6 point harness compatible.
Breathable & cooling Spacer fabric.
Deep-sided lateral protection.
Integrated lateral head protection.
Dual width option: Standard or GT (+30mm)
Side-mount only1 (supplied with high tensile bolts).
SPECS:
FIA homologated to 8855-1999.
Composite Diolen®/GRP construction.
Weight: 20 lbs. (Standard) / 21 lbs. (GT).
Note 1: side mounts (pictured) are not included, available separately in dropdown above.
Cobra
Cobra Evolution Pro-Fit Racing Seat
$1,129.00
Cobra Evolution Pro-Fit Racing Seat
(Side Mounts Sold Separately)
The Evolution Pro-Fit is a timeless design in side protection racing seats, still very much preferred by drivers for its open aspect, ease of use, and incredible safety. An open headrest specifically designed for HANS/FHR use ensures maximum visibility while maintaining side impact safety. The Evolution Pro-Fit features the same high-side containment shape and lateral support also found in Cobra's Suzuka Pro-Fit seat, with the addition of an integrated head restraint.
The Pro-Fit range has Cobra's unique Spacer fabric which is FIA compliant and aids driver comfort and cooling. Like all Cobra competition seats, the Evolution Pro-Fit is available in Standard and GT width to suit the widest range of drivers among seats in the market today.
The Diolen/GRP constructed shell makes this seat lighter and stronger than similar Fiberglass seats. All Cobra Pro-Fit seats come standard with mid-height back and lower seat cushions; you can select optional ultra low or higher cushion options to get the best possible driver comfort at no extra cost.
This latest design of Cobra's Evolution is taller than before, allowing tall drivers to fit comfortably under the seat's halo protection and shoulder belt openings. The base is roughly 1.5" deeper with a more convex shape.
FEATURES:
HANS®/FHR compatible.
PRO-FIT custom padding system.
4/5/6 point harness compatible.
Breathable & cooling Spacer fabric.
Deep-sided lateral protection.
Integrated lateral head protection.
Dual-width options, Standard or GT (+30mm)
Side-mount only1 (supplied with high tensile bolts).
SPECS:
FIA homologated to 8855-1999.
Composite Diolen®/GRP construction.
Weight: 20 lbs. (Standard) / 21 lbs. (GT)
Note 1: side mounts (pictured) are available separately in the dropdown above.
COBB
COBB Accessport V3 for Porsche 997.2 GT3-GT3RS (2010-12)
$1,125.00
COBB Tuning Accessport V3 for Porsche 997.2 GT3 & GT3RS
The COBB Accessport V3 is the world's best-selling, most flexible ECU upgrade solution for the Porsche 997.2 GT3 and GT3RS. Unlock power and torque masked by Porsche's conservative, one-size-fits-all factory ECU tuning by choosing and downloading COBB's more aggressive calibrations and mapping. Plus, easily upgrade forever as you add future modifications to your engine with COBB's off-the-shelf (OTS) calibrations professionally designed for most of the popular bolt-on Porsche modifications. It's truly the last engine management solution you'll ever need!
Once you receive your Accessport, you just download the tuned map(s) of your choice from COBB's customer website, then upload them to your car's ECU via the OBD2 port. It's simple and easy, requiring only about 20 minutes! You can also save your original factory tune so you can change the ECU back to 100% stock anytime.
Warning! Installation of this Accessport over anything other than OEM or COBB software may result in ECU/TCU failure. Please contact COBB Support if you have any questions.
STAGE 1 MAPS
Stage1 maps are designed for a stock engine configuration. Left-foot braking is enabled (a major reason to get the COBB tune). The rev limiter is raised to 8,650 RPM in all Stage 1 calibrations. (ACN91 is for Arizona/California gas formulations.) There is also a valet-mode (rev limit of 4,000 RPM) and an anti-theft mode that will not allow the engine to start.
The in-cabin mountable Accessport V3 has a large, full color, higher resolution TFT screen that allows you to monitor up to six parameters in real time. Fully customizable look (multiple bezel colors and styles are available), layout (set up a race, street or dyno gauge cluster) and mounting options (choose from hundreds of standard vehicle mounts). Of course, a full range of unparalleled COBB tuning is included, with enough space for 100 calibrations! This is your new Accessport - the last tuning device you'll ever need.
SUPPORTED VEHICLES:
2010-2011 Porsche 911 (997.2) GT3 MT
2010-2011 Porsche 911 (997.2) GT3 RS MT
2011 Porsche 911 (997.2) GT3 RS 4.0 MT
FEATURES:
Large, full color, higher resolution screen
Customizable multi-gauge display
In vehicle mount, with on/off switch
User-customizable start-up screen
Interchangeable faceplates
Stilo
Stilo ST6 FN Composite Helmet SA2025
$1,100.00
Stilo ST6 FN Composite SA2020 Racing Helmet
The Legendary Stilo FN Composite Helmet - Forever Ahead
For over 25 years, Stilo has lead the way in racing helmet innovation and the new ST6 line marks a bold new chapter. With input from Porsche and F1 teams, Stilo developed enhanced front- and top aerodynamics to deliver exceptional performance from the new Stilo ST6 line of helmets. Developed with the world's top drivers from Formula One and endurance racing, the ST6 reflects real-world needs at every level of auto racing.
The Stilo ST6 composite helmet is one of the lightest composite helmets on the market. It features enhanced airflow, visibility, and comfort while maintaining market-leading safety standards. Developed with input from the Aston Martin F1 team, every feature of the ST6 -- from the track-tested aerodynamics to the cutting edge dual-lock visor system -- is designed to give racers a performance edge.
The brand new Stilo ST6 helmet improves on the market-leading Stilo ST5 in every way, including the following:
10% lighter than Stilo ST5
26% more airflow than Stilo ST5
11% more visibility
More comfortable liner and cheek pads
More shell sizes for lower weight
Improved visor construction for durability and ease of care
Higher-quality visor hardware increases reliability
Stilo ST6 FN Composite Auto Racing Helmet Features
Puro Tech: Stilo's proprietary carbon fiber manufacturing process eliminates the need for extra lacquers and additional coatings, minimizing the weight of your new helmet. With the Puro process, Stilo delivers the lightest and safest helmet on the market.
Added Shell Size: now offered in four shell sizes, the Stilo ST6 FN auto racing helmet gives you the lightest and smallest shell size possible for your head shape.
Increased Airflow Design: by utilizing key partnerships with Formula One teams, Stilo has redesigned the ST6 front ventilation to increase airflow while maximizing safety. The new Stilo ST6 also comes standard with ventilation holes in the top, channeling airflow through the EPS foam to reduce sweat and moisture, keeping you performing at your best.
Increased Downward Visibility: with input from professional drivers around the globe, Stilo has increased the downward field-of-view of the Stilo ST6, making harness fastening easier during driver changes and giving you greater situational awareness on the track.
Interior Comfort: new and improved cheek padding in the Stilo ST6 was designed to enhance aero stability and increase comfort.
Injection Molded Visor: the brand new visors for the ST6 provide exceptionally clear visibility and are coated in a new high-performance, washable anti-fog treatment.
Dual Visor Lock: pioneering the industry, the dual visor lock on the Stilo ST6 complies with FIA standards in both the fully closed and ventilation positions.
Updated Visor Hardware: engineered for easier visor installation and smoother actuation, this visor hardware can be purchased in a variety of anodized finishes.
What’s Changing in SA2025 Auto Racing Helmets?
SA2025 helmets are here, and while the changes may not be groundbreaking, they represent an important evolution in motorsport safety. According to the Snell Memorial Foundation, the SA2025 standard is an evolutionary update from SA2020—not a complete overhaul. Unlike the M2025 motorcycle standard, which adds rotational impact testing, the SA2025 auto racing helmet standard does not include rotational force requirements.
Key SA2025 Helmet Safety Enhancements:
Increased Impact Protection: SA2025 helmets are required to handle slightly higher impact speeds and achieve lower maximum peak G-force thresholds across all head-form sizes.
Global FIA Alignment: These updated requirements bring the SA2025 standard into alignment with the new FIA 8859-2024 helmet safety regulation, creating more consistency across international motorsports.
In short: SA2025 helmets are designed to offer enhanced linear impact protection, making them the safest Snell-rated auto racing helmets to date. Whether you're a competitive racer or a weekend track day enthusiast, upgrading to an SA2025-certified helmet ensures compliance with future racing regulations and gives you peace of mind at speed.
Stilo Helmets ST6 FN Composite Helmet Details
Manufacturer: Stilo Helmets
Manufacturer part number: AA0810AF2V
Homologation: FIA 8858-2015
Certification: Snell SA2020
Compatible shields: Stilo ST6 helmet shields
Noise-attenuating earmuffs included
Other Versions of the Stilo ST6 Racing Helmet
Stilo ST6 GT Composite Helmet
Stilo ST6 GT SA2020 Carbon Fiber Helmet
Stilo Helmet ST6 FN 8859-ABP Helmet
Stilo ST6 FN Zero 8860-2018 Carbon Fiber Helmet
Stilo ST6 FN Zero ABP 8860-2018 Carbon Fiber Helmet
Stilo ST6 FN Composite Helmet
Stilo ST6 FN 8859-ABP Helmet
Stilo ST6 GT 8860 Carbon Fiber Helmet
Stilo ST6 FN 8860 Carbon Fiber Helmet
Stilo ST6 FN 8860-ABP Carbon Fiber Helmet
Stilo ST6 GT ZERO 8860-2018 Carbon Fiber Helmet
Stilo ST6 FN Composite Auto Racing Helmet Sizing Note
We have found that customers who typically wear a size 59 in other brands are most comfortable in a Stilo size 61, which uses the large shell. Please order accordingly.
Measuring Your Head For Your New Stilo ST6 FN Composite Helmet
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.
Stilo
Stilo ST6 GT Composite Helmet SA2025
$1,100.00
Stilo ST6 GT Composite SA2025 Racing Helmet
The legendary Stilo composite—lighter, cooler, clearer
For over 25 years, Stilo has led racing-helmet innovation and the ST6 line marks a bold new chapter. With input from top programs, engineers refined front and top aerodynamics for stability at speed. The ST6 GT Composite emphasizes airflow, visibility, and long-stint comfort while meeting modern safety targets. From track-tested aero to a dual-lock visor system, every update is about confidence in the car.
The ST6 improves on the market-leading ST5 in key areas:
~10% lighter than Stilo ST5
~26% more airflow than Stilo ST5
~11% wider downward visibility
Refined liner and cheek pads
More shell sizes to optimize weight
Reworked visor construction for durability and easy care
Updated visor hardware for smoother actuation
Stilo ST6 GT Composite Auto Racing Helmet Features
Puro Tech: Stilo's composite process minimizes extra coatings to reduce mass without compromising protection.
Added shell size: now offered in three shell sizes, the ST6 GT helps deliver the smallest, lightest shell appropriate for your head size.
STILO ST6 GT HELMET SIZE AND PAD CHART FOR CUSTOMIZATION
Increased airflow design: redesigned front intake and top vents route air through EPS channels to reduce sweat and moisture.
Increased downward visibility: a wider field of view speeds up belt fastening and improves situational awareness.
Interior comfort: revised cheek padding stabilizes fit and comfort at speed.
Injection molded visor: clear optics with a washable high-performance anti-fog treatment.
Dual visor lock: compliant with FIA standards in both closed and vent positions.
Updated visor hardware: smoother actuation and easier installation; available in anodized finishes.
Stilo Helmets ST6 GT Composite Helmet Details
Manufacturer: Stilo Helmets
Manufacturer part number: AA0800AF2X
Homologation: FIA 8858-2015
Certification: Snell SA2025
Compatible shields: Stilo ST6 helmet shields
Noise-attenuating earmuffs
Stilo ST6 Size & Measurement
Customers who typically wear a size 59 in other brands are often most comfortable in a Stilo size 61 (large shell). If you’re between sizes, many drivers prefer the tighter option for stability.
What’s Changing in SA2025 Auto Racing Helmets?
SA2025 helmets are here, and while the changes may not be groundbreaking, they represent an important evolution in motorsport safety. According to the Snell Memorial Foundation, the SA2025 standard is an evolutionary update from SA2020—not a complete overhaul. Unlike the M2025 motorcycle standard, which adds rotational impact testing, the SA2025 auto racing helmet standard does not include rotational force requirements.
Key SA2025 Helmet Safety Enhancements:
Increased Impact Protection: SA2025 helmets are required to handle slightly higher impact speeds and achieve lower maximum peak G-force thresholds across all head-form sizes.
Global FIA Alignment: These updated requirements bring the SA2025 standard into alignment with the new FIA 8859-2024 helmet safety regulation, creating more consistency across international motorsports.
In short: SA2025 helmets are designed to offer enhanced linear impact protection, making them the safest Snell-rated auto racing helmets to date. Whether you're a competitive racer or a weekend track day enthusiast, upgrading to an SA2025-certified helmet ensures compliance with future racing regulations and gives you peace of mind at speed.
Stilo ST6 GT Composite SA2025 Helmet FAQs
Is this Snell SA2025 certified? Yes, this listing reflects SA2025 certification for U.S. auto racing.
What’s the difference between GT and FN? GT includes earmuffs for noise reduction and comms; FN is open-ear for maximum awareness and airflow.
Can I reuse ST5 shields? No, the ST6 uses its own shield family; choose ST6-specific shields and hardware.
Ships with signature required.
Girodisc
A1-006 Girodisc 2pc Front Brake Rotors
$1,100.00
FITS: Dodge Viper
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 Viper front or rear and work flawlessly with 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 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
A1-091 Girodisc 2pc Front Brake Rotors (Ford GT500 2013-2014)
$1,100.00
FITS: 2013-2014 FORD MUSTANG GT500 (380mm rotors)
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.
The 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 two-piece floating rotors will bolt directly to the GT500 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. Girodisc rotors are lighter than OEM pieces; this reduction in rotational and unsprung weight (eight pounds per corner!) allows for quicker acceleration, stronger braking, and faster suspension response.
When used with Pagid racing brake pads and Thunderhill RF-1 racing 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 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 ten 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 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.
Girodisc
A1-152 Girodisc 2pc Front Brake Rotors (380mm) (TT RS)
$1,100.00
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 Audi TT RS
The GiroDisc system is an upgrade from a 365mm rotor to a 380mm 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 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.
Girodisc
A1-039 Girodisc 2pc Front Brake Rotors (Camaro 2010-2015)
$1,100.00
FITS: Chevy Camaro Gen 5 front (2010-2015)
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 Gen 5 Camaro 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
A2-006 Girodisc 2pc Rear Brake Rotors (Dodge Viper 2003+)
$1,100.00
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.
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 (7 lbs per corner) 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 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 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.
Girodisc
A2-147 Girodisc 2pc Rear Brake Rotors (C7 Corvette Z06)
$1,100.00
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.
The GiroDisc system is an upgrade to a 380MM 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 RF1 Racing fluid (also available from CompetitionMotorsport.com), you have an amazing solution to 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.
Girodisc
A2-034 Girodisc 2pc Rear Brake Rotors (2004-2008)
$1,100.00
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 Lamborghini Gallardo 2004-2008
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 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.
Girodisc
D1-154 Girodisc Front Replacement Rotor Rings (Porsche 991 GT3-GT3RS-981 GT4) (PCCB)
$1,100.00
One pair of Girodisc replacement 410mm rotor rings for the Girodisc A1-154 (Porsche 991 GT3/GT3RS) and A1-156 (Porsche 981 Cayman GT4) two-piece floating rotor systems. Includes all necessary replacement hardware that must be used when replacing rotor rings.
Sold/priced per pair.
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