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BBS RI-S 2-Pc Forged Line 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. BBS RI-S Two-Piece Forged Line Exclusive Wheels are forged aluminum wheels designed and produced in the renowned BBS Motorsports Department. The RI-S two-piece wheels use titanium fasteners and the rims are machined using a BBS-patented process to reduce weight. They all come with a diamond-cut rim and clear protective top coat. All RI-S 2-Pc Forged Line Exclusive wheel weights are optimized using FEA (Finite Element Analysis). FEATURES Two-piece forged aluminum wheel. Titanium fasteners. Rim sections machined using a BBS patented process to reduce weight. Weight optimized by FEM analysis. WHEEL WEIGHTS 20x8.5: 24.5 lbs. 20x9.0: 26.0 lbs. 20x10.0: 26.0 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 at (844) 438-7244 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.

CMS Performance Bolt In Roll Bar For BMW E92 M3 This Roll Bar Fits the Following Cars: BMW E92 M3 (2008-2013) BMW E92 M3 Competition Package ZCP (2011-2013) BMW E92 M3 GTS (2011) The Premium Roll Bar for BMW's Legendary E92 The CMS Performance Roll Bar is the strongest, safest, most beautifully constructed bolt-in roll bar on the market for the BMW E92 M3. It is engineered to easily bolt into any E92 variant, giving you rollover protection while adding to the motorsport-derived style of the E92 M3. Engineered with a premium put on safety and structural rigidity, the exceptional design of the CMS Performance E92 M3 Roll Bar integrates perfectly with the car's luxury/sport interior. CMS uses only advanced Docol R8 Advanced High-Strength Steel tubing throughout each roll bar, giving you unequalled tensile strength, energy dissipation, and occupant protection. Docol R8 is 15% stronger than 4130 CrMo steel and 30% stronger than mild (DOM) steel used by other roll bar manufacturers. It is superior in every way: resistance to deformation, weld strength, and energy dissipation. A Roll Bar Design as Bulletproof as the M3 Itself CMS Performance designed the E92 roll bar with a one-piece main roll hoop featuring reinforced X-bracing along with a horizontal harness bar. (X-brace gussets can be added as an option add even more strength and rigidity.) The harness bar is specifically designed to locate racing harness shoulder straps at the proper angle (0° to -20°) in most seating positions. Every CMS Performance E92 M3 roll bar bolts directly to the BMW's chassis, forming the rock-solid backbone of your roll-over and impact protection. Rearward kicker support angles are optimized for structural integrity and easy installation, while preserving your unobstructed rear view. Cuting Edge Materials and Direct Bolt-In The CMS Performance BMW E92 M3 Roll Bar is designed to bolt directly to the M3 chassis' strong points without the need for any modification of existing interior trim or use of backing plates underneath the car. Adding a CMS custom designed rear seat delete gives the whole installation a clean, factory appearance. Full 360o TIG welding throughout gives every CMS Performance roll bar unsurpassed strength and durability. Each roll bar includes custom powder coating in your choice of matched BMW M3 factory colors. We also offer technical color powder coat finishes like the amazing Superchrome! Or, go with satin black for a more understated appearance. CMS Performance has over 5,000 custom powder coat colors to give you a truly customized look. The Best Materials, Design and Construction Set CMS Performance Apart Our unwavering focus on using cutting-edge materials, unsurpassed design and construction, and premium fit&finish has taken CMS Performance Roll Bars to the top of the industry. The BMW E92 M3 roll bar is the latest addition to our growing catalog, bringing safety, integrity, and beauty to your M3 whether on the street or at the track! Click Here for Installation Instructions BMW E92 M3 Roll Bar Options: Main hoop X-brace gussets can be added for $200 CMS Roll Bar Harness Collars help keep your harness shoulder straps where you want them CMS Performance BMW E92 M3 Roll Bar Details: Manufacturer: CMS Performance Manufacturer part no.: PRB158 Material: 1.75″ X .090" Docol R8 Advanced High Strength Steel tubing Design: one-piece main hoop and three-piece kickers ease installation Hardware: American-made Grade 8 hardware included BMW E92 M3 Roll Bar Features: CNC-cut mounting plates Designed, built, and finished by CMS Performance in the USA American-made CNC machined solid steel interlocking joints Allows full seat travel with virtually any seat Detailed installation instructions Installation requires removal of the factory rear seat bottom cushion. This product is intended for off-road race track use only.

Alpinestars GP Tech v4 Driver Race Suit SFI Ever dreamt of suiting up in gear that makes you feel invincible on the track? Well, dream no more. Introducing the Alpinestars GP Tech V4 Driver Suit - where cutting-edge technology meets unparalleled comfort. Alpinestars GP Tech v4 Driver Suit SFI Bootcut Features Exclusive Outer Shell Material: Developed just for Alpinestars, this twill material isn't just about looking sleek. It's about giving you that edge. Aramidic-Based Knit Lining: Imagine the comfort of your favorite pajamas but with the protection of a knight's armor. That's what this innovative lining offers. Plus, it's lightweight, so you won't feel like you're dragging a chainmail around the track. Super Breathability: Thanks to the aramidic base lining with its open weave structure, you'll feel the breeze even when you're burning rubber. And with added breathable panels on the side, you'll stay cooler than the other side of the pillow. Stretchable Panels: Strategically placed at the center back, lower back, elbow, crotch, and knee zone. Because who said you can't be flexible while going full throttle? Advanced Three-Layer Construction: Ensures breathability, maximum comfort, and effective regulation of body temperature. It's like having a personal AC unit. Anatomically Engineered Design: Pre-curved arms and legs mean you fit into this suit like a glove. Or, more accurately, it fits you. Formula 1-Derived Stretch Panels: Located on the lumbar area, elbows, knees, and crotch for that extra oomph in flexibility. Enhanced Breathability Areas: More ventilation because let's face it, racing is sweaty business. All-New Extraction Handle: A safety feature straight from Formula 1. Because your safety is our top gear. Lightweight Knitted Cuffs: For that snug feeling without the weight. Soft Collar with Knit Fabric: No more scratchy necks. Just pure comfort. Elastic Waist Construction: Because one size should fit YOU. Printed Logos: Helps maintain the suit’s integrity and reduces weight. Plus, it looks pretty darn cool. Premium YKK Metal Zipper: For when you need to get in and out in a flash. Thigh Pockets: Because where else would you keep your secret racing snacks? Athletic-Regular Fit Design: Look good. Feel good. Race even better. Certified to FIA 8856-2018: Because we're all about keeping you safe in style. Alpinestars GP Tech v4 Driver Suit SFI Bootcut FAQ's What rating are FIA race suits? They are certified to the FIA 8856-2018 homologation standard. Are racing suits fireproof? Absolutely! They're designed to protect you from fire hazards on the track. How long do FIA race suits last? Typically, they have a life span of about 3-5 years, depending on usage. What does FIA approved mean? It means the suit meets the strict safety and quality standards set by the Fédération Internationale de l'Automobile. Can you wash a fireproof racing suit? Yes, but always follow the manufacturer's instructions to maintain its integrity. What is the difference between FIA and SFI? Both are governing bodies that set safety standards, but FIA is international while SFI is primarily US-based. What should I wear under my race suit? It's recommended to wear fire-resistant undergarments for added protection. Ready to Unleash the Beast? Don't just be a racer; be a legend. Suit up in the Alpinestars GP Tech V4 Driver Suit and dominate the track. Alpinestars GP Tech v4 Driver Suit SFI Bootcut Size Chart

Alpinestars GP Tech v4 Driver Suit FIA Ever dreamt of suiting up in gear that makes you feel invincible on the track? Well, dream no more. Introducing the Alpinestars GP Tech v4 Driver Suit - where cutting-edge technology meets unparalleled comfort. Alpinestars GP Tech v4 Driver Race Suit Features Exclusive Outer Shell Material: Developed just for Alpinestars, this twill material isn't just about looking sleek. It's about giving you that edge. Aramidic-Based Knit Lining: Imagine the comfort of your favorite pajamas but with the protection of a knight's armor. That's what this innovative lining offers. Plus, it's lightweight, so you won't feel like you're dragging a chainmail around the track. Super Breathability: Thanks to the aramidic base lining with its open weave structure, you'll feel the breeze even when you're burning rubber. And with added breathable panels on the side, you'll stay cooler than the other side of the pillow. Stretchable Panels: Strategically placed at the center back, lower back, elbow, crotch, and knee zone. Because who said you can't be flexible while going full throttle? Advanced Three-Layer Construction: Ensures breathability, maximum comfort, and effective regulation of body temperature. It's like having a personal AC unit. Anatomically Engineered Design: Pre-curved arms and legs mean you fit into this suit like a glove. Or, more accurately, it fits you. Formula 1-Derived Stretch Panels: Located on the lumbar area, elbows, knees, and crotch for that extra oomph in flexibility. Enhanced Breathability Areas: More ventilation because let's face it, racing is sweaty business. All-New Extraction Handle: A safety feature straight from Formula 1. Because your safety is our top gear. Lightweight Knitted Cuffs: For that snug feeling without the weight. Soft Collar with Knit Fabric: No more scratchy necks. Just pure comfort. Elastic Waist Construction: Because one size should fit YOU. Printed Logos: Helps maintain the suit’s integrity and reduces weight. Plus, it looks pretty darn cool. Premium YKK Metal Zipper: For when you need to get in and out in a flash. Thigh Pockets: Because where else would you keep your secret racing snacks? Athletic-Regular Fit Design: Look good. Feel good. Race even better. Certified to FIA 8856-2018: Because we're all about keeping you safe in style. Alpinestars GP Tech v4 Driver Race Suit FAQ's What rating are FIA race suits? They are certified to the FIA 8856-2018 homologation standard. Are racing suits fireproof? Absolutely! They're designed to protect you from fire hazards on the track. How long do FIA race suits last? Typically, they have a life span of about 3-5 years, depending on usage. What does FIA approved mean? It means the suit meets the strict safety and quality standards set by the Fédération Internationale de l'Automobile. Can you wash a fireproof racing suit? Yes, but always follow the manufacturer's instructions to maintain its integrity. What is the difference between FIA and SFI? Both are governing bodies that set safety standards, but FIA is international while SFI is primarily US-based. What should I wear under my race suit? It's recommended to wear fire-resistant undergarments for added protection. Ready to unleash the beast? Don't just be a racer; be a legend. Suit up in the Alpinestars GP Tech v4 Driver Suit and dominate the track. Alpinestars GP Tech v4 Driver Race Suit Size Chart

COBB Tuning Accessport V3 for Porsche 997.1 Turbo/GT2 The COBB Accessport V3 is the world's best-selling, most flexible ECU upgrade solution for all turbocharged Porsche 997.1 Turbo and GT2. Unlock power and torque masked by Porsche's conservative, one-size-fits-all factory ECU tuning by choosing and downloading COBB's more aggressive calibrations and mapping. Plus, easily upgrade forever as you add future modifications to your engine with COBB's off-the-shelf (OTS) calibrations professionally designed for most of the popular bolt-on Porsche modifications. It's truly the last engine management solution you'll ever need! Once you receive your Accessport, you just download the tuned map(s) of your choice from COBB's customer website, then upload them to your car's ECU via the OBD2 port. It's simple and easy, requiring only about 20 minutes! You can also save your original factory tune so you can change the ECU back to 100% stock anytime. Warning! Installation of this Accessport over anything other than OEM or COBB software may result in ECU/TCU failure. Please contact COBB Support if you have any questions. Stage 1 maps 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, etc. Stage 3 1000 maps designed for a high-flow exhaust, thicker core intercoolers, and COBB 1000-cc injectors. Stage 3 1300 maps designed for a high-flow exhaust, thicker core intercoolers, and COBB 1300-cc injectors. Each stage map enables brake boosting for two seconds. This allows you to floor the gas with your foot on the brake to build boost. The timer on the sport button has also been raised to 30 seconds so you can use the overboost feature longer. There's also a valet mode that limits RPM to 4,000, and an anti-theft mode that prevents the vehicle from starting. 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: 2007-2009 Porsche 911 (997.1) Turbo AT, MT 2008-2009 Porsche 911 (997.1) GT2 MT 2011 Porsche 911 (997.1) GT2 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

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE GT1 (CENTER LOCK) Contact a wheel specialist today at 844-438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! FITS PORSCHE CENTER LOCK Derived from the Forgeline GTD1 racing wheel, the GT1 brings racing DNA to the street. The GT1 represents the latest in advanced wheel technology -- including one-piece forged monoblock construction, motorsport engineered design, I-beamed spokes and spoke spans -- to deliver head-turning good looks with track-ready capability! The Forgeline GT1 is a fully-forged one-piece monoblock wheel. Utilizing manufacturing technology similar to the very successful GA1R wheel, the concave 12-spoke design of the GT1 looks great and allows plenty of room for caliper clearance and extreme brake fitment. Forgeline's computer-simulated FEA design process yields a wheel that is very lightweight and extremely stiff, with excellent fatigue strength. The GT1 is engineered exclusively for Porsche center lock applications and fits all Porsche center lock systems for street and track, including Cup Car and RSR applications. Currently available in 18, 19, 20, and 21-inch diameters, we'll have your GT1 made in your choice hundreds of customizable finish options! FEATURES: One-Piece Monoblock Construction Concave Profile 12-Spoke Design Engineered for Porsche Center Lock Fitments I-Beamed Spoke Technology I-Beamed Spoke Spans Along the Lip Very Lightweight, Stiff, and Strong Generous Brake Clearance Forged 6061-T6 Aluminum Fits All Porsche Center Lock Systems for Street and Track, Including Cup Car and RSR Applications Customizable Finish Options Legendary Forgeline Quality

Call us any time at 844-438-7244 for Thunderhill-Exclusive Forgeline pricing you won't find anywhere else! Thunderhill offers FREE SHIPPING on all Forgeline Wheel Orders! FORGELINE VX1R (FIVE-LUG) Contact a wheel specialist today at 844-438-7244 to discuss the details of your custom Forgeline wheel build. We can guide you through sizing, offsets, finishes, and other details to make sure your Forgelines are perfectly suited to your needs! If you like the look of our popular VX1, but need a load rating that is suitable for dedicated track duty, then the VX1R was engineered for you! The VX1R is a fully track-ready competition wheel equal in weight and strength to Forgeline's famous GA1R and GS1R Competition Series wheels.The VX1R features a sharp Y-spoke design, with long spokes that wrap around the lug holes, striking sharp angles, a deep concave profile, and a chamfered outer edge. The Forgeline VX1R is a fully-forged, one-piece monoblock wheel utilizing manufacturing technology similar to the very successful GA1R. Beyond just beautiful style, the VX1R is engineered to allow plenty of room for caliper clearance and extreme brake fitment. Forgeline's computer-simulated FEA design process yield a wheel that is lightweight and stiff, with excellent fatigue strength.Currently available in 18, 19, 20, and 21-inch diameters with a range of widths and offsets, the VX1R can be made to accommodate most five-lug or center lock applications. And just like any Forgeline wheel, the VX1R is available with fully customizable finish options! FEATURES: One-Piece Forged Monoblock Construction Concave Profile Sharp Y-Spoke Design Striking Sharp Angles Strong Chamfered Machining Details Lightweight Load Rated for Motorsport Applications Generous Brake Clearance Forged 6061-T6 Aluminum Includes Aluminum Center Cap Customizable Finish Options Legendary Forgeline Quality

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 Ferrari 430 Challenge 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.

FITS: Ferrari 430 SCUDERIA 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 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 Ferrari 458 Italia Fits Ferrari 488 Fits Ferrari F8 Fits Ferrari Pista 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.

PORSCHE 991 GT3, GT3RS, AND GT2RS (2014 +) WITH PCCB BRAKES This 410mm Girodisc conversion system is a direct FRONT rotor replacement for the Porsche 991 and 991.2 GT3, GT3RS, AND GT2RS originally equipped with PCCB brakes. These two-piece floating rotors will bolt directly to the car and work with OEM calipers perfectly. You must use must use the pad shape used on the 991 GT3 with iron rotors. The annulus (pad swept height) of these rotors is smaller than the PCCBs to keep rotor weight low and allow far better pad selection. By upgrading your brakes with lightweight high-performance Girodisc rotors (paired with Girodisc A2-154 rear rotors), your factory brake bias and ABS efficiency are maintained. The low rotational and unsprung weight allows for quicker acceleration and transient suspension response. Most racers replace the factory PCCBs with steel two-piece rotors to avoid the inevitable damage to the fragile carbon ceramic discs when swapping wheels at the track! When used with Pagid 4924 or PFC racing brake pads and Thunderhill RF1 Racing brake fluid, you have an amazing, durable solution to cracked or broken carbon-ceramic rotors at a fraction of the cost of the factory PCCBs. The hat of each rotor is machined from 6061-T6 aircraft aluminum. The disc is manufactured from cast iron using the same specs and materials as professional racing organizations. The curved-vane design acts as a centrifugal pump to force cool air through the disc. The disc and hat mount together using a floating mount system with high-strength alloy steel drive pins and Grade 12 cap screws. The drive pins transfer braking load while maintaining axial and radial float between the disc and hat to accomodate heat expansion. Hardened washers and anti-noise springs eliminate the rattle and noise sometimes associated with floating rotors. The two-piece Girodisc design allows for disc-only replacement (using Girodisc D1-154); the aluminum hats are re-usable. Sold/priced per pair

Girodisc A2-154 Rear Iron Rotor Conversion for Porsche PCCB Fits The Following Porsches With OEM PCCB: Porsche 991.1 and 991.2 GT3 Porsche 991.1 and 991.2 GT3RS Porsche 991.2 GT2RS This 390mm Girodisc conversion system is a rear rotor direct replacement for any Porsche 991 GT3, GT3RS, and GT2RS originally equipped with PCCB brakes. These two-piece floating iron rotors will bolt directly to the car and work with your OEM calipers perfectly. By upgrading your brakes with these lightweight, high-performance Girodisc rotors (paired with the A1-154 front rotors), your factory brake bias and ABS efficiency are maintained. The low rotational and unsprung weight allows for quicker acceleration and transient suspension response. Most racers replace the factory PCCBs with steel two-piece rotors to avoid the inevitable damage to the fragile carbon ceramic discs when swapping wheels at the track! When used with Pagid or PFC performance brake pads and Thunderhill RF1 Racing brake fluid, you have an amazing, durable solution to cracked or broken carbon-ceramic rotors at a fraction of the cost of replacing the factory PCCB units. The central hat section of each disc is made from 6061-T6 aircraft 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 eight to ten high-strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance. These 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.

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 Aventador 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.

991 PORSCHE TURBO & 981 GT4 (OEM PCCB) This Girodisc system is a 410mm two-piece steel rotor and aluminum hat combination, a direct-replacement upgrade for the OEM PCCB brakes. The A1-156 will bolt directly to your Porsche and work perfectly with your OEM calipers. There are two main reasons for replacing your PCCB: first, the Girodisc rotors are designed to shed heat more effectively than the original rotors; second, the machined cast iron rotor rings are far more durable than the fragile OEM carbon-ceramic rotors. This is critical when you're swapping wheels on and off the car for track days or racing, because it's so easy to nick a carbon rotor and take a chunk out of it. When paired with the Girodisc A2-156 rear rotors, your factory brake bias and ABS efficiency are maintained. When used with Pagid or PFC performance brake pads, and Thunderhill RF1 brake fluid, you have an amazing solution to overheating, cracking and warping rotors. The central hat section is made from 6061-T6 aircraft aluminum. The rotor is manufactured in the US from cast iron using the same specs and materials as professional racing organizations. The racing-developed vane design acts as a centrifugal pump to force cooling air through the disc. Rotor and hat mount together through a floating mount system using high-strength alloy steel drive pins and Grade 12 cap screws. These transfer braking load while maintaining axial and radial float between the rotor and hat for superior heat management. 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 rattle and noise. 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.

PORSCHE 991 TURBO & 981 CAYMAN GT4 OEM PCCB This Girodisc system is a 390mm two-piece steel rotor and aluminum hat combination, a direct-replacement upgrade for the OEM PCCB brakes. The A2-156 will bolt directly to your Porsche and work perfectly with your OEM calipers. There are two main reasons for replacing your PCCB: first, the Girodisc rotors are designed to shed heat more effectively than the original rotors; second, the machined cast iron rotor rings are far more durable than the fragile OEM carbon-ceramic rotors. This is critical when you're swapping wheels on and off the car for track days or racing, because it's so easy to nick a carbon rotor and take a nice chunk out of it. When paired with the Girodisc A1-156 front rotors, your factory brake bias and ABS efficiency are maintained. When used with Pagid or PFC performance brake pads, and Thunderhill RF1 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 eight to ten high strength alloy steel drive pins manufactured by Girodisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by 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.

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 Ferrari 599 GTB with Optional CCM Rotors The Girodisc system is a direct replacement for the OE disc however a different brake pad with an annulus (pad swept area) of 66mm or less must be used. This is done to keep the rotor weight at a reasonable level. If we manufactured a rotor with the same annulus as the OEM CCM rotors they would be far too heavy.The necessary pad shape is available from both Pagid and PFC. If there is a specific pad compound you're after please contact us directly to provide the correct part numbers.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 8 or 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 in pairs