
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.

Girodisc
D2-154 Girodisc Rear Replacement Rotor Rings (Porsche 991 GT3-GT3RS-981 GT4)
$1,100.00
One pair of Girodisc replacement 390mm rotor rings for the Girodisc A2-154 (Porsche 991 GT3/GT3RS) and A2-156 (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.

Girodisc
A1-067 Girodisc 2pc Front Brake Rotors
$1,100.00
FITMENT (FRONT):
Ford S550 Mustang GT (with Performance Pack)
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 set of 380mm x 34mm rotors is for use with the S550 Mustang GT with the optional performance package six-piston Brembo calipers. 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. The Girodisc rotors are lighter than OEM pieces, resutling in a reduction in rotational and unsprung weight (over four pounds per corner) 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.

Girodisc
A1-112 Girodisc 2pc Front Brake Rotors (Mustang FR500S)
$1,100.00
FITMENT (FRONT):
Ford Mustang FR500S
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. The Girodisc rotors are lighter than OEM pieces, resuutling in a reduction in rotational and unsprung weight (4 lbs per corner) 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.

Girodisc
A1-179 Girodisc 2pc Front Brake Rotors (Audi 8S TTRS)
$1,100.00
FITMENT (FRONT):
Audi 8S TTRS (2014-Present)
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. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc front rotors are approx 22.0lbs vs. 27.4lbs for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.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 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. Sold/priced per pair.
When used with Pagid 8081 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.

Girodisc
A1-180 Girodisc 2pc Front Brake Rotors (Audi 8V RS3)
$1,100.00
FITMENT (FRONT):
Audi 8V RS3
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. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc front rotors are approx 22.0lbs vs. 27.4lbs for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.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 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. Sold/priced per pair.

BBS
BBS RE-V Die-Forged Series Wheels
$1,100.00
BBS RE-V Die-Forged Series Exclusive Wheels
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 FEM analysis without compromising design or build quality. Available in a wide range of sizes, finishes and bolt patterns, the Die-Forged Series from BBS has something for everyone.
Available in Diamond Silver with protective top coat only.
FEATURES
One-Piece Die Forged Aluminum Wheel
BBS Patented Milling Process inside the spoke area
Weight optimized by FEM analysis
WHEEL WEIGHTS
19x9.0: 23.9 lbs.
19x10.0: 25.0 lbs.
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 for a complete quote and estimated lead time.
"PFS" centerbore designation means the wheel comes with the BBS Precision Fitment System.
Prices and weights are per wheel.

Girodisc
D1-168 Girodisc Front Rotor Ring Replacements
$1,100.00
REPLACEMENT ROTOR RINGS ONLY. INCLUDES NEW INSTALLATION HARDWARE. DOES NOT INCLUDE ALUMINUM HATS.
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.
These Girodisc replacement rotor rings are direct replacements for the iron discs on your Girodisc two-piece rotors, and no modifications are necessary. New cap screws and washers are included with these replacement rotors. We do not recommend re-using the old hardware.
The replacement rotor rings 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 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 ring-only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/priced per pair.

Girodisc
A2-211 Girodisc 2pc Rear Brake Rotors (ZL1 Gen 6)
$1,100.00
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 Chevrolet Camaro ZL1 Gen 6
These Girodisc iron rotors are a direct replacement for the OE brake discs with no modifications.
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

Girodisc
A2-239 Girodisc 2pc Rear Brake Rotors (ZL1 Gen 5)
$1,100.00
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 Chevrolet Camaro ZL1 Gen 5
The Girodisc system is a direct replacement for the OE disc, they will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.
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

Girodisc
D1-228 Girodisc Front Rotor Ring Replacements (Super Trofeo)
$1,100.00
FITS: Lamborghini Huracan Super Trofeo ONLY
REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT.
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 replacement rotor system is a direct rotor disc replacement for the OEM 2-piece hat and rotor and no modifications are necessary.
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 to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.

Arai
Arai GP-7 Helmet SA2020
$1,099.95
The Arai GP-7 SA2020 Auto Racing Helmet
A driver favorite, the Arai GP-7 SA2020 helmet combines the most popular Arai features with new, improved upgrades. The Arai GP-7 is constructed with Arai’s own PBcLc (Peripherally Belted Complex Laminate Construction) helmet shell with the same shell shape as the top-of-the-range GP-7SRC model used in Formula 1. New ventilation, a soft EPS liner, and a wider eye port for optimized peripheral vision are part of this new shell which gives the driver notable strength and flexibility. Replaceable cheek pads make racing comfortable for any driver, as do the three larger, closeable intake vents and two larger exhaust vents on the ventilation system.
The Arai GP-7 helmet is Snell SA2020 certified with factory-installed M6 washers/nuts. Drivers of any skill level can install their own Head and Neck Restraint system using a 6mm bolt. The FIA-8859-2015 certification sticker is applied to the interior liner of the helmet.
Arai Positive Shield Latch
Simple yet effective, the positive latch mechanism on the Arai GP-7 SA2020 helmet gives the driver solid shield latching, but is seamlessly integrated into the standard shield system for ease of use.
New Shield Pivot for the Arai GP-7
The Arai GP-7 SA2020 features new shield pivot hardware with improved aerodynamics based on the updated track slider design. An increased peripheral field of view is featured on the 6 series, which surpasses the 5 series in visibility. The wider eye port, shield, and pivot hardware were all developed on the RC and adapted to the Arai GP-7 SA2020 helmet.
Additional Arai GP-7 visor shields available here.
ARAI GP-7 Increased Ventilation and Comfort
Increased airflow is key to the GP-7 SA2020 helmet’s design. This includes bigger, closeable intake vents with large 10mm holes in both front and rear. Larger rear vents also provide better airflow.
M6 HANS Anchors for the Arai GP-7 Helmet
Drivers of all skill levels will appreciate the integrated, pre-installed M6 threaded washer/nut with 6mm threads which accepts a range of Head and Neck Restraint devices. A flat surface area around the mounting nut will let the anchor post base to rest flush along the surface of the helmet and around the full perimeter of the anchor base. FIA-8859-2015 certification sticker applied to the interior liner material.
Featuring a Redesigned Chin Bar
The Arai GP-7 SA2020’s new, ergonomic chin bar and ridge at the bottom edge of the shell lowers the center of gravity and increases the structural integrity of the helmet. Additional improvements include a rise in the shell above the shoulders for increased clearance.
E-Ject Ready Crown Pad for Safer Removal
Arai's optional E-Ject system can be easily accommodated via a pre-cut pocket under the helmet’s crown pad. This system makes removal of the helmet by track safety crew easier and less likely to jostle an unconscious driver's head in the event of an accident
Arai GP-7 Auto Racing Helmet Details:
Manufacturer: Arai Helmet
Manufacturer part no.: GP7SA20
Snell SA2020 certified
PBcLc (Peripherally Belted Complex Laminate) shell construction
Removable chin liner to accommodate a drink system
Sizes: 54cm (X-Small) to 60cm (Large)
Exterior colors: Gloss White or Black Frost
A Note About Helmet Fitment and Head Measurement
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.

FluidLogic
FluidLogic Flush 360 System (Non Forced Air)
$1,099.95
FluidLogic Flush 360 System (Non Forced Air)
The Pod & Flush 360 Kit is designed for users that do not use forced air or simply chose not to build onto their existing forced air system. The kit comes with the Pod as described above along with the Flush 360 assembly to allow the user to quickly connect/disconnect their hydration using the power of Maglock®.
The Flush 360 quickly and easily installs onto the helmet in minutes with no drilling or modifications required. The Flush 360 Kit comes with everything needed to connect the existing fluid source to set up one complete helmet and seat in the vehicle.
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