Racecar Gear

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 Chevrolet C6 ZR1 The GiroDisc system is a direct replacement for the OEM brake disc. The 2-piece floating disc will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight high-performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Giro Disc rotors are lighter than OEM pieces. The reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. When used with Pagid or PFC performance brake pads, and Thunderhill RF-1 brake fluid (also available from CompetitionMotorsport.com), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron which is constructed in the USA and is made to the same specification with the same material used by professional racing organizations. The rotors curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

Thunderhill is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline. Fits Audi B9 RS5 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 GiroDisc 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.

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 B9 RS5 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 GiroDisc 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.

REPLACEMENT ROTOR DISCS ONLY. INCLUDES NEW MOUNTING HARDWARE. 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 Girodisc two-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 two-piece Girodisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

REPLACEMENT ROTOR DISCS ONLY. INCLUDES NEW MOUNTING HARDWARE. 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 Girodisc two-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 two-piece Girodisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

Fitment: Chevrolet Corvette C8 Z51 REPLACEMENT ROTOR DISCS ONLY. INCLUDES NEW INSTALLATION HARDWARE. 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 Girodisc two-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 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 to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

Fitment: Chevrolet Corvette C8 Z51 REPLACEMENT ROTOR DISCS ONLY. INCLUDES NEW INSTALLATION HARDWARE. 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 Girodisc two-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 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 to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

Sparco Pro 2000 QRT Martini Racing Seat SIZE: Medium, up to a 34” waist (as measured) The Pro 2000 QRT Martini Racing Edition is a limited production seat. It features the Iconic Martini Racing stripes and is available in period correct Navy or Grey. The Pro 2000 QRT Martini Edition is designed for a medium size driver with a waist size up to 34 inches. The Pro 2000 QRT Martini Edition is our deepest bolstered seat that gives excellent lateral support. It also features removable/adjustable lumbar cushions and non-slip fabric on the shoulder and bottom cushion areas for improved seat comfort. The Pro 2000 QRT Martini Edition is made with all-new QRT Technology which results in an ultra-light shell. The shoulder harness openings have been raised and the seat area around the mid-section has been reshaped for less interference when compared to the original Pro 2000. The Pro 2000 QRT Martini Edition is a unique FIA seat as it can be bottom mounted in addition to the traditional side mounting. This gives additional installation options. EVOLUTION OF AN ICON The Pro 2000 QRT is an evolution of Sparco's iconic Pro 2000 seat. The Pro 2000 QRT has been upgraded with new ergonomics and technology. It is designed for a medium size driver with a waist size up to 34 inches. The Pro 2000 QRT is our deepest bolstered seat that gives excellent lateral support. It also features removable/adjustable lumbar cushions and non-slip fabric on the shoulder and bottom cushion areas for improved seat comfort. The Pro 2000 QRT is made with all-new QRT Technology which results in an ultra-light shell. The shoulder harness openings have been raised and the seat area around the mid-section has been reshaped for less interference when compared to the original Pro 2000. The Pro 2000 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, generating 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 ultra-light fiberglass composite shell Excellent fitment into small cockpits Adjustable lumbar cushions Excellent ergonomics Fire retardant fabric FIA approved DIMENSIONS

Garmin Dash Cam 67w 16 GB Class 10 Micro SD Card Included! Want to record your track sessions without the fuss of setting up a full data acquistion system and/or lap timer? If so, the Garmin Dash Cam 67w may be the solution you're looking for. That fact that it's also helpful for daily driving is a bonus, but that's not why you're shopping at Thunderhill after all. You're probably wondering if you can record your sessions easily. To answer that question, here's a direct quote from the Garmin Product Strategy Manager we spoke to: "Yes! The user will be able to upload all the footage from the SD card to the Drive app. They just need to make sure that they prompt the dash cam to upload the footage so the camera doesn't automatically record over it." So there you have it! Garmin technology and simplicity in an unobtrusive package to capture your laps quickly and easily. IN THE BOX: Garmin Dash Cam 67w Pre-installed 16 GB microSD card Low profile adhesive/magnetic mount Vehicle power cables Dual USB power adapter Documentation

Chillout Systems 4" Carbon Fiber NACA Duct Ultralight weight and wind tunnel tested, the Chillout 4-inch NACA duct provides over 55% more airflow than a standard 3-inch NACA duct. Used in conjunction with 4-inch Neoprene Air Duct Hose and a 4-inch Chillout Carbon Fiber Plenum (both available in the drop downs above), the Chillout Carbon Fiber NACA Duct results in maximum cooling efficiency for your cooling system.NACA ducts bring air into a vehicle with a minimal increase in external drag. The purpose of a NACA duct is to increase the flow rate of air while not disturbing boundary layer airflow over your vehicle's exterior. When the cross-sectional flow area of the duct is increased, you decrease the static pressure and make the duct into a vacuum cleaner (without the drag effects of a standard scoop). The reason why the duct is narrow, then suddenly widens in a graceful arc is to increase the cross-sectional area slowly so that airflow doesn’t separate and cause turbulence and drag. FEATURES: Dry carbon fiber for light weight and durability. Wind tunnel tested. 55% more airflow than 3" NACA duct. Chillout Cooler sold separately.

Garmin Dash Cam 57w 16 GB Class 10 Micro SD Card Included! Want to record your track sessions without the fuss of setting up a full data acquistion system and/or lap timer? If so, the Garmin Dash Cam 57w may be the solution you're looking for. That fact that it's also helpful for daily driving is a bonus, but that's not why you're shopping at Thunderhill after all. You're probably wondering if you can record your sessions easily. To answer that question, here's a direct quote from the Garmin Product Strategy Manager we spoke to: "Yes! The user will be able to upload all the footage from the SD card to the Drive app. They just need to make sure that they prompt the dash cam to upload the footage so the camera doesn't automatically record over it." So there you have it! Garmin technology and simplicity in an unobtrusive package to capture your laps quickly and easily. IN THE BOX Garmin Dash Cam 57w Pre-installed 16 GB microSD card Low profile adhesive/magnetic mount Vehicle power cables Dual USB power adapter Documentation

Sparco QRT-C Carbon Racing Seat The QRT-C is an all-carbon fiber version of the QRT-R. The QRT-C is the lightest “large” size carbon fiber seat on the market. The QRT-C weighs 12.5lbs (with padding and cover) and is constructed from “Pre-Preg” aerospace grade carbon fiber, also known as Dry Carbon. The QRT-C was specifically designed for a large driver and it fits up to a 36” waist driver comfortably. The QRT-C is unique because it was designed to fit a larger driver but has excellent fitment into smaller cockpits The QRT-C requires the special QRT Side Mounts (#600QRT) which allows the seat to be racked back for a comfortable seating position. The QRT-C is FIA approved. SIZING Large – up to a 36” waist (pants size) 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 Ultralight Carbon Fiber - 12.5lbs fully trimmed weight Excellent fitment into small cockpits Large size driver fitment Excellent ergonomics Fire retardant fabric Special non-slip fabric FIA approved QRT-C CARBON DIMENSIONS

Sparco QRT-K Carbon Kevlar Racing Seat The QRT-K is a full Carbon Kevlar version of the QRT-R. The QRT-K looks amazing with the exposed yellow/black Carbon Kevlar weave. The QRT-K is one of the lightest seats on the market. The QRT-K weighs 13.5lbs fully trimmed (with padding, cover and harness guides) and is constructed from “Pre-Preg” aerospace grade Carbon Kevlar. The QRT-K was specifically designed for a larger driver and it can fit a 36” waist (pants size) driver. The QRT-K is unique because it was designed to fit a larger driver but has excellent fitment into smaller cockpits. The QRT-K requires the special QRT Side mounts (#600QRT) which allows the seat to be raked back for a comfortable ergonomic seating position. The QRT-K is FIA approved. SIZING Large fits up to a 36” waist (pants size) 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 Ultralight Carbon Kevlar Composite Shell - 13.5lbs including cover and padding Visible carbon kevlar weave Excellent fitment into small cockpits Large size driver fitment Excellent ergonomics Fire retardant fabric Special non-slip fabric FIA approved QRT-K CARBON KEVLAR DIMENSIONS

Sparco QRT-C Performance Carbon Racing Seat The QRT-C Performance Carbon seat represents the luxury evolution of the QRT-C race seat. The QRT-C Performance Carbon uses the same FIA approved light-weight all-carbon fiber race shell as the QRT-C race seat but is covered in Italian Leather and Alcantara. The QRT-C Performance Carbon is constructed from “Pre-Preg” aerospace grade carbon fiber, also known as Dry Carbon. The seats are handstitched in the Sparco OEM factory in Torino Italy. The QRT-C Performance Carbon has a unique CAD design that features a lower seating position that can fit a larger/taller driver with the exterior dimensions that can fit into smaller cockpits. The QRT-C Performance can hold the driver during extreme lateral forces, but is also comfortable for long road trips. The QRT-C Performance Carbon seat is FIA Approved. SIZING Large – up to a 36” waist (pants size) 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 Ultralight Carbon Fober Shell Excellent fitment into small cockpits Medium/Large size driver fitment Excellent ergonomics Fire retardant fabric Special non-slip fabric FIA approved QRT-C PERFORMANCE CARBON DIMENSIONS

Chillout Systems 4-Inch 285 CFM Blower An ultra-efficient and lightweight design, the Chillout 4-inch 285 CFM blower offers high air output and low amp draw. This is the most powerful and reliable blower in its class. FEATURES: 285 cubic feet per minute (CFM) 4.7 Amps 12 Volts Lightweight, durable, and ultra-reliable

Trac-Com Helmet Speaker Kit V2 This helmet kit is designed for drivers looking to add integrated speakers and a microphone to their helmet. Designed in-house by RaceCom to be a universal solution, the Helmet Kit V2 is compatible with most motorsport helmets regardless the size and shape. The Instructor Helmet Kit includes the V2 Helmet Kit with an IMSA male cable end.What makes the V2 kit different? The new V2 helmet kit takes lessons learned from the V2 Student headset and applies them to bring you the loudest, most complete, highest quality universal helmet kit available. This kit features the brand new R7 digital mic and powerfully tuned speakers all built into a compact package that will easily install to almost any helmet quickly and comfortably. FEATURES: Two powerfully tuned speakers New R7 digital microphone Male IMSA plug on headset Strong, sturdy RaceCom cables have been pull-tested by a certified lab Meticulous build process proven to outlast and outperform all others INCLUDES: Helmet Speaker Kit V2