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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.

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.

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.

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.

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 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.

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.

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

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

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.

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.

Sparco Circuit / Circuit II QRT Racing Seat The Circuit QRT is an ultra-light competition seat specifically designed for circuit use. Made from aramadic fiber-reinforced fiberglass with all-new QRT technology, the Circuit QRT has an ultra-light shell. The Circuit QRT includes integrated bolsters to protect the head. This seat can be used with a Hans device for even greater protection. The ultra-light shell is then wrapped in an impact-absorbing and fire retardant fabric that helps hold the body. The Circuit QRT is FIA approved and available in two sizes: Circuit QRT (Standard) and Circuit II QRT (Large). QRT TECHNOLOGY QRT technology gives an unparalleled mechanical strength/weight ratio for fiberglass composite racing seats. QRT technology gives an average weight savings of 30% when compared to standard fiberglass technology. The main benefit is that QRT seats approach weight of carbon fiber seat at the price of a fiberglass composite seat. TECHNOLOGY QRT technology – 30% weight savings Ultra-light Aramadic fiber-reinforced fiberglass shell Integrated head bolsters for greater safety HANS device compatible Fire retardant fabric FIA approved DIMENSIONS

Sparco Pro ADV QRT Racing Seat The Pro-ADV competition seat is the result of a collaborative partnership between Sparco and FIA. The goal was to identify ways to improve safety. The results are new levels in ergonomics, materials and above all safety, are all found in the Pro-ADV seat. Increased rigidity and the use of impact-absorbing materials are the major advances found in the Pro-ADV.The new PRO ADV QRT is an upgraded evolution of the original PRO ADV. The new PRO ADV QRT features a new head restraint redesign that allows better fitment with vehicles with smaller cockpits. The PRO ADV QRT will fit a medium/large size driver (up to 35 inch waist). The Pro ADV QRT is made with all-new QRT Technology which results in an ultra-light shell. The Pro-ADV QRT is FIA-approved. WHAT IS QRT? Designed and developed at the Sparco OEM Composite Laboratory in Italy, QRT is a patented state-of-the-art technical process, based on aerospace technologies. QRT creates an unparalleled mechanical strength to weight ratio. This innovative production method generates the lightest fiberglass composite seat shells currently on the market; in fact, it guarantees a reduction in total weight of up to 30% compared to traditional production methods. The QRT seats approach the weight of a comparable carbon fiber seat at a lower price point. TECHNOLOGY QRT Ultralight fiberglass composite shell Excellent head and shoulder protection Special non-slip fabric for shoulders and bottom cushion Excellent ergonomics Fire retardant fabric FIA approved DIMENSIONS

Sparco Sky RF-7W Carbon SA2020 The Sparco Sky RF-7W has a carbon fiber outer shell reinforced with layers of carbon-kevlar composite. The RF-7W Carbon includes a wider eye opening making it ideal for both open-wheel and closed-cockpit racing. Multiple exterior vents increase air circulation throughout a redesigned interior. Integrated channels not only direct cool air onto the driver's head, some also route air towards the visor reducing the chance of fogging. The Sparco Sky RF-7W Carbon has removable, washable interior padding that's easy to reposition for a customized, comfortable fit. All interior seams have been removed from areas where pressure is exerted on the head. The Sparco Sky RF-7W has been designed to accommodate a drink tube and an intercom system (each sold separately). Available in sizes X-Small to X-Large (including new Medium/Large size using Sparco's smaller, lighter shell) with a red or black interior. The Sparco Sky RF-7W Carbon Fiber has HANS posts pre-installed and is both Snell SA2020 and FIA 8859-2015 approved. Additional Sparco Sky RF-7W Carbon Fiber helmet shields available here. Sparco Sky RF-7W Carbon Fiber Helmet Details: Snell SA2020 and FIA 8859-2015 certified Wind tunnel optimized venting with anti-fog air channels Lightweight carbon fiber with carbon-kevlar base layers Choose red or black interior lining color Removable, washable lining Pre-molded interior to accommodate drink tube and intercom system (sold separately) New "Medium/Large" size uses Sparco's lighter and more compact shell HANS posts pre-installed Anodized aluminum chin strap hardware How To Measure Your Head Properly 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.