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Girodisc A1-139 Girodisc 2pc Front Brake Rotors (Megane III RS) $1,050.00

FITMENT (FRONT): Renault Megane III RS (2017+) Thunderhill is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country. We ship Girodisc systems worldwide on the same or next business day to ensure we meet your delivery deadline. This 350mm Girodisc system is a direct replacement for the OE Renault rotors, no modifications are necessary. The rotors will bolt directly to the car and work with OE calipers perfectly (using the supplied billet spacers to accommodate the 10mm larger Girodisc rotors). By upgrading your brakes with lightweight high performance replacements (as opposed to a big brake kit), your factory brake bias is maintained as well as your ABS efficiency. The Girodisc front rotors are approx 22.0 lbs vs. 25.2 lbs 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 U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from Giorodisc'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 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 and cadmium plated for 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 discs when needed. Sold/priced per pair.

Girodisc A1-242 Girodisc 2pc Front Brake Rotors (C8 Corvette) $1,050.00

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 Corvette C8 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.

Girodisc A2-242 Girodisc 2pc Rear Brake Rotors (C8 Corvette) $1,050.00

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 Corvette C8 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.

-50% sale

Sparco Sparco Prime Spec 1 $1,050.00 $2,100.00

Sparco Prime SPEC1 Driver Suit SAVE $$$ The Sparco Prime Spec 1 Driver Suit is a USA exclusive suit that improves on Sparco’s original version of the Prime SP-16. The first thing you will notice is the new suit design. The Prime Special Edition adds 2 new multi-color options. In addition to the new design, the Prime Special Edition adds a few extra features, such as full floating sleeves, belt, and internal pockets. The Sparco Prime Spec 1 Driver Suit was made in collaboration with the Mclaren Formula One team; additionally, it is the lightest FIA approved racing suit in the world. The Prime SP-16 Special Edition has unparalleled technological features created in Sparco’s R&D laboratories. The project involved optimizing every single detail in terms of material and construction. This includes an ultra slim zipper, soft seamless Nomex/Vicosa® wrists, and ankle cuffs, the neck and shoulder pads were further reduced, a thinner thread was used and stitching flattened even more. The Sparco Prime Spec 1 Driver Suit features 3-layer construction using proprietary Sparco technology. The third outer layer is a double-faced mesh made from original DuPont Nomex Comfort® was woven using the Kompact® system. The material contains a high percentage of antistatic fibers which provide extremely effective antistatic properties as well as breathability. The Sparco Prime Spec 1 Driver Suit features pre-curved arms and legs as well as strategic stretch panels which give the suit unbelievable comfort. The Prime SP-16 Special Edition is available in 2 color options and in sizes 48-66. TECHNOLOGY FIA 8856-2000 Approved Lightest FIA approved suit in the world Exclusive DuPont Nomex® fibers provide superior fire protection and comfort Pre-curved Arms and Legs Strategic Stretch panels Seamless arm and leg

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Sparco Sparco Victory 2023 Driver Suit FIA 8856-2018 $1,050.00

Sparco Victory 2023 Driver Suit FIA 8856-2018 The lightweight and breathable Sparco Victory 2023 racing suit is feature packed with lightweight HOCOTEX fabric construction, comfort stretch panels, and is dual SFI 3.2/5a and FIA 8856-2018 homologated. Built in Italy with pride, the new lightweight and breathable Sparco Victory 2023 brings the performance of competitor's suits that have double the cost to weekend racers. It's hard to improve on a classic, but Sparco has done just that with the updated Victory 2023 racing suit! Built from the popular Victory racing suit that brought HOCOTEX technology at the $1050 price point. Largely keeping the popular Victory classic design with modern color options, the new Victory 2023 suit takes things a step further with an improved cut, style, and fit. An improved stretch panel on the lower-back further improves mobility, while preformed sleeves maintain excellent steering performance. Sparco's unique HOCOTEX technology makes use of an intricate honeycomb structure that contains thousands of protective microcapsules built into a super-thin and breathable fabric weave. Twice as breathable as other entry-level suits, these insulating compartments replace the multi-layer fabric construction found in every other suit on the market, all while maintaining dual SFI 3.2A/5 & FIA 8856-2018 certifications for zero compromise in protection! FEATURES: Soft and Lightweight Two times more breathable than a standard suit Single Layer Construction, Multi-Layer Protection Hidden front pockets Full-floating, pre-formed sleeves with stretch panels Additional stretch gusset in shoulder and armpit sections 3 Years of Research and Development HOCOTEX® Patented Sparco Technology – Made in Italy Only single layer SFI 3.2A/5 suit on the market Rating: FIA 8856-2018 & SFI 3.2a/5

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OMP OMP HTE-R Racing Seat (Reg or XL) from $1,029.00

OMP Racing Seats HTE-R SIZES: Regular or XL The OMP Racing Seats HTE-R is used in pro and amateur racing series all around the world because drivers prefer its protective, halo-style design and uncommonly comfortable construction. Based on a lightweight, gel-coated fiberglass shell, the Airtex material on the upholstered surfaces allows for exceptional breathability under high-temperature conditions. OMP HTE-R seats have removable base- and back-cushions with an ergonomic, split-leg bottom cushion. They are designed to work comfortably with any HANS device and harnesses. High side-bolsters provide excellent lateral leg support and the seats are side-mount (W fixing) for supreme safety. The XL version is 20mm wider, 20mm deeper (front to back), and 40mm taller than the Regular HTE-R. FEATURES: FIA Homologation 8855-1999 SHELL: Fiberglass MOUNTING: W (side) HOLES: 5 WEIGHT: 9.4-10.5 kg (20.7-23.1 lbs.) HANS compatible

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OMP OMP HTE-R 400 Racing Seat $1,029.00

OMP HTE-R 400 Racing Seat The OMP HTE-R 400 racing seat gives you the same protective halo-style design as their standard HTE-R in a slimmer profile for installation in smaller cockpits. Constructed from a lightweight gel-coated fiberglass shell, the HTE-R 400 is upholstered in OMP's highly breathable Airtex material for comfort even in the hottest conditions. Removable back/base cushions and a comfortable split-leg bottom cushion give you room to customize the fit. High side bolsters offer excellent lateral support, while the large HANS-compatible shoulder harness slots ensure proper alignment for a wide range of driver heights. FEATURES: FIA 8855-1999 Homologated Gel-coated Fiberglass shell Weight: 22.4 lbs. (10.2 kg) Mounting: Side only

COBB COBB Accessport V3 for Porsche 987.2 Cayman S & Boxster S $1,025.00

COBB Tuning Accessport V3 for 987.2 Cayman S/Boxster S The COBB Accessport V3 is the world's best-selling, most flexible ECU upgrade solution for the Porsche 987.2. 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. 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 us at (844) 438-7244 if you have questions. Stage1 maps are designed for a stock engine configuration. Stage2 maps are designed for the addition of aftermarket high-flowing headers. Both Stage1 and Stage2 are designed to work well with the popular IPD Competition Plenum and throttle body upgrade. The Stage2, in particular, is a fantastic upgrade to stock! 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: BOXSTER: 2009-2012 Porsche Boxster S (987.2) MT, PDK 2011-2012 Porsche Boxster Spyder (987.2) MT, PDK CAYMAN: 2009-2012 Porsche Cayman S (987.2) MT, PDK 2011-2012 Porsche Cayman R (987.2) MT, PDK 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

COBB COBB Accessport V3 for Porsche 997.1 GT3-GT3RS (2007-08) $1,025.00

COBB Tuning Accessport V3 for Porsche 997.1 GT3 & GT3RS The COBB Accessport V3 is the world's best-selling, most flexible ECU upgrade solution for the Porsche 997.1 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. Stage1 maps are designed for a stock engine and intake, with either stock exhaust or muffler bypass. Stage 2 maps are designed for full aftermarket exhaust (Cup car headers can be used), with an otherwise stock engine. Left-foot braking is enabled (a major reason to get the COBB Stage 2 tune). Rev limit is raised to 8,550 RPM. 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. COBB has even provided a 100-octane map that takes maximum advantage of using high-octane racing fuel. We have had incredible success using Race Gas in our race cars to chemically reformulate pump gas into real 100-octane racing fuel. 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: 2007-2008 Porsche 911 (997.1) GT3 MT 2007-2008 Porsche 911 (997.1) GT3 RS 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

COBB COBB Accessport V3 for Porsche 996 Turbo $1,025.00

COBB Tuning Accessport V3 For Porsche 996 Turbo The COBB Accessport V3 is the world's best-selling, most flexible ECU upgrade solution for the Porsche 996 Turbo. 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. AVAILABLE OTS MAPS: Stage1 maps are designed for a stock engine configuration, stock airbox, and stock exhaust. Stage 2 maps are designed for a high-flow exhaust and cats, with an otherwise-stock engine, airbox, and filter. Stage 3 maps designed for a high-flow exhaust, thicker core intercoolers, and upgraded intake such as the IPD Competition Plenum and Y-Pipe. Each stage includes a 100-octane map for those times on the street or the track when you really (really) want to get down the road! (We use Race Gas in our race cars, it chemically reformulates pump gas to match 100-octane racing fuel!) 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. CONFIRMED APPLICATIONS: 2001-2005 Porsche 911 (996) GT2 MT2001-2005 Porsche 911 (996) Turbo AT, MT2002-2005 Porsche 911 (996) Turbo X50 AT, MT ACCESSPORT V3 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

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competitionmotorsport.com Racing Brake Caliper Rebuild Kit (997.1/997.2) GT3/Turbo PCCB (Front and Rear) $1,022.44

The best way to put racing harnesses in a C6 Corvette with factory seats is the Brey Krause R-1120 harness bar from Thunderhill.

Brey Krause Brey Krause R-1120 Harness Bar C6 Corvette $1,017.38

Brey Krause R-1120 Harness Bar C6 Corvette The Brey Krause Model R-1120 Harness Bar for the C6 Corvette properly locates and supports racing shoulder harnesses relative to the driver. In the case of an accident, it helps protect the driver's shoulders and spine. The harness guides also prevent excessive shifting and fatigue of the driver during the high G loads of cornering and braking. Our bars are easy to install and remove, and will get you ready for the track in just a few hours! NOTE: Because of mounting locations in the C6, the B-pillar plastic sail panel covers will require two holes to be drilled through them. Brey-Krause provides plastic plugs to cover the holes if the bar is ever removed. Sail panels replacements can be ordered from your GM Dealer (Part 15277640 for driver side, and 15277641 for passenger side) if the plastic plugs are not the desired solution. Strength requirements for harness mounts are considerably greater than those for harness guide bars since they must support the entire load applied to the belts. Brey Krause R-1120 C6 Harness Bar Details: Manufacturer: Brey Krause Manufacturer Part Number: R-1120 Material: Type 304, stainless steel Finish: Powder coated in durable black wrinkle-finish Weight: 17.2 lbs. Installation: Bar attaches to factory mounting points in "B" pillars.

Pagid Pagid Racing Brake Pads No. 4581 $1,002.34

Fits These Vehicles: Make Model Build (Year) Front Rear Ferrari 458 Speciale [ceramic brakes] 2013 + X Ferrari 488 [ceramic brakes] 2015 + X RSC 1: The Pagid RSC1 is a good street/track compromise for enthusiasts with Carbon-Ceramic Brakes. Used for sprint racing and track days compound with all known types of ceramic brake discs. An ideal combination of cold friction, fade resistance and low thermal oxidation of the disc surface.

Girodisc Corvette C8 Z06 398mm Front Replacement Rings 2023- $1,000.00

FITS: CHEVROLET CORVETTE WITH Z06 PACKAGE 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 Giro Disc 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.

Girodisc D1-146 Girodisc Front Replacement Rotor Rings (Porsche 991 GT3-GT3RS) (Steel) $1,000.00

FITS PORSCHE 991 GT3/GT3RS (2014+) FRONT Replacement rotor rings for the Girodisc A1-146 two-piece floating rotors for the Porsche 991 GT3/GT3RS. Includes all hardware necessary for safely replacing worn rotor rings. Sold/priced per pair.

Girodisc D1-066 Girodisc Front Replacement Rotor Rings (Porsche 991 GT3-997 Turbo) $1,000.00

One pair of Girodisc 380mm steel replacement rotor rings for the Girodisc A1-066 (Porsche 991 Turbo Steel and 997 Turbo PCCB) and A1-166 (Porsche 981 Cayman GT4 Steel) two-piece floating rotor system. Includes new hardware needed that must be used when replacing rotor rings. Sold/priced per pair.

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