all

Antigravity Lithium Car Battery The Antigravity H8/Group 49 Lithium Car Battery is the ultimate OEM-sized upgrade for high-performance and exotic vehicles like Ferrari. Built for drivers who demand more power and less weight, this lithium battery delivers up to 2000 cranking amps while shedding nearly 40 lbs compared to stock. With built-in wireless jump-starting and advanced battery management, it's a smarter, lighter, and more reliable solution. Big Power – OEM Fit – Built-In Jump Start. Antigravity H8 Battery Features: OEM Group 49 (H8) case size: 14" x 7" x 7.5" — direct drop-in replacement Available in 60Ah (1800CA) and 80Ah (~2000CA) configurations RE-START Technology: Wireless jump-starting built in—just press the key fob button Complete Battery Management System (BMS) with thermal, overcharge, short circuit, and cell-balancing protection Ultra-lightweight: up to 70% lighter than lead-acid—drop nearly 40 lbs instantly! Safe LiFePO4 lithium chemistry for stable, long-lasting performance Threaded M8x1.25 terminals for secure, performance-grade installation Antigravity H8/Group 49 Battery FAQs: What makes this battery different from a standard AGM? It weighs 70% less, delivers 2–3x the cranking amps, and includes wireless jump-start tech built right in. Which applications is the H8 size ideal for? High-performance and exotic vehicles requiring Group 49 case size—especially Ferraris where higher Ah is critical due to parasitic draw. Can I install this myself? Yes. It’s a plug-and-play drop-in for any car using an H8/Group 49 battery—no modifications or spacers needed. Does the BMS protect the battery over time? Absolutely. The built-in BMS ensures safe charging, usage, and storage conditions to prolong battery life. Unlock reliable power, serious weight savings, and built-in jump-starting with the Antigravity H8/Group 49 Lithium Battery—the best drop-in solution for your performance vehicle. Performance Vehicles That Use H8 Size: Ferrari NEW! Lightweight Lithium Batteries with Wireless Remote Built-In Jump Starting! Antigravity Batteries has changed the game again with their latest Lithium-Ion Car Batteries. The newest RE-START line of batteries offers built-in WIRELESS Jump-Starting! That means if your battery is ever discharged, simply press the button on the provided key fob, start the car, and drive away! No need for a jump starter or roadside assistance. You don’t even have to open the hood—activate it from inside your vehicle! If you want to track your battery status via Bluetooth, you can use the Bluetooth Battery Tracker PLUS (sold separately).

Forgeline GA3C Wheels (3-piece) The GA3C Concave combines the race-bred styling and I-beamed spoke technology from our incredibly successful GA1R monoblock wheel with three piece modular construction and a concave center profile to create a wheel with stunning good looks, aggressive character, and plenty of room for caliper clearance and extreme brake fitment. Like all Forgeline Concave Series wheels, the GA3C locates the pad inboard of the outer rim to deliver depth and scale within the wheel center for a modern muscular look. Available in both deep concave profiles (for the most striking appearance) and shallow concave profiles (to create a staggered look or to accommodate narrow widths or higher-offset applications), these 3-piece wheels are assembled with American-made stainless-steel ARP fasteners in your choice of exposed through-bolt or hidden bolts with Heli-Coil inserts. The GA3C is a custom made-to-order three-piece wheel that is produced from forged 6061-T6 aluminum centers with heat-treated rim-shells. And just like any Forgeline wheel, the GA3C is fully customizable in fitment and finish, including center lock applications. Muscular Concave Design Both Deep and Shallow Concave Profiles Available I-Beamed Spoke Technology 3-Piece Modular Construction Flat Reverse-Lip Design Also available with a stepped-lip in 19", 20", and 21" diameters Hidden Stainless ARP Fasteners (optional exposed fasteners also available) Heli-Coil Inserts Forged 6061-T6 Aluminum Center Heat-Treated Rim Shells Includes Standard Aluminum Center Cap Will Accommodate OE TPMS and Lug Nuts Customizable Fitment and Finish Options Legendary Forgeline Quality

Girodisc Ford S550 Mustang Rear Rings Refresh your Ford Mustang’s braking system with Girodisc D2-067 rear replacement rings. Designed for the 330mm Girodisc two-piece rotor system, these rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface for a cost-effective solution that maintains peak braking performance and reduces unsprung weight. Vehicle Fitment Compatible with:• Ford Mustang GT (S550, 2015–2023, rear)• Ford Mustang Bullitt (2019–2020, rear)• Ford Mustang Shelby GT350 / GT350R (rear)Note: For vehicles equipped with Girodisc 330mm two-piece rear rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors. Features • Sold as a left/right pair with full hardware kit• Direct replacements for Girodisc 330mm two-piece rear rotors• CNC-machined from high-carbon cast iron for strength and thermal control• Directional curved vanes improve airflow and reduce fade• Maintains OEM brake balance and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands Specifications • Diameter: 330mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and new hardware kit• Sold/priced per pair• MSRP: $530.00 Girodisc D2-067 Mustang Rear Replacement Ring FAQs Do these fit the factory Mustang brake setup? No. These are designed exclusively for Girodisc two-piece rotor systems and will not fit factory one-piece rotors. Are these compatible with performance brake pads? Yes. They work with all major pad brands including Hawk, Ferodo, and G-LOC for both street and track use. Can I install these with basic hand tools? Yes. If you already have Girodisc two-piece rotors, installation is straightforward with standard tools and a torque wrench. How do these perform compared to OEM rotors? The Girodisc system offers improved cooling, lighter weight, and consistent pedal feel during repeated heavy braking. Upgrade your Mustang’s braking performance with Girodisc D2-067 330mm rear replacement rings — engineered for superior heat control, strength, and confidence on both road and track.

Girodisc 350mm Porsche 996 / 991 / 992 Rear Rotors (with Spacers & Bolts) The Girodisc A2-032B Rear Rotor Kit is a premium direct-fit replacement for Porsche 996, 991, and 992 models. Engineered for high-performance driving, this system includes caliper spacers and longer bolts to accommodate the larger 350mm rotors. The result is improved braking torque, enhanced cooling efficiency, and reduced unsprung mass—all while retaining factory fitment and ABS calibration. Lightweight Design & Increased Performance Each Girodisc rotor assembly pairs a CNC-machined 6061-T6 aluminum hat with a proprietary cast iron disc. The 2-piece design significantly reduces rotational mass compared to OEM rotors, improving suspension response and acceleration. The curved vane design acts as a centrifugal pump, drawing air through the rotor to enhance cooling and resist fade under extreme braking conditions. Precision Floating Mount System The rotors feature Girodisc’s race-proven floating mount design with 10 cadmium-plated steel drive pins connecting the iron ring to the aluminum hat. These pins allow the disc to expand radially under high temperatures without warping, ensuring consistent pad contact. Anti-noise spring washers eliminate rattle, maintaining quiet operation suitable for street and track use alike. Girodisc A2-032B 350mm 2pc Porsche Rear Rotor Vehicle Fitment Porsche 996 Carrera / Carrera 4 / Carrera 4S Porsche 991 Carrera / Carrera 4 / Carrera GTS (Base models require S/4S/GTS rear pad shape for full rotor sweep) Porsche 992 Carrera / Carrera S / Carrera 4S Direct bolt-on installation with supplied spacers and hardware Technical Specifications CMS Number: A2-032B Position: Rear Rotor Diameter: 350mm (includes caliper spacers & longer bolts) Design: 2-piece floating rotor assembly Material: Proprietary cast iron with 6061-T6 aluminum hat Vane Design: Curved directional vanes for improved airflow Hardware: Cadmium-plated steel drive pins, class 12.9 screws, anti-noise washers Rebuildable: Yes — replace rotor rings, reuse aluminum hats Sold/Price: Per pair Girodisc A2-032B 350mm 2pc Porsche Rear Rotor FAQs Do these rotors fit all Porsche 996, 991, and 992 models? Yes. However, 991 base Carrera models must use the S/4S/GTS rear pad shape for full pad sweep. What is included with this kit? Each kit includes two 350mm rotors, caliper spacers, and longer mounting bolts for a complete direct installation. Are modifications required? No. The supplied hardware makes this a true bolt-on upgrade using factory calipers and lines. What are the main benefits over stock rotors? Improved cooling, reduced weight, better pedal response, and replaceable rings for long-term cost savings. Upgrade your Porsche’s braking system with the Girodisc A2-032B Rear Rotor Kit. Experience reduced fade, sharper braking response, and long-term durability whether on the street or at the track.

Girodisc Porsche 981, 718 Rear Rings Refresh your Porsche’s braking performance with Girodisc D2-035 350mm rear replacement rings. These precision-machined, high-carbon cast iron rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface to restore full braking performance while retaining your lightweight Girodisc two-piece system. Vehicle Fitment Compatible with:• Porsche 981 Cayman / Boxster (rear)• Porsche 718 Cayman / Boxster (rear)Note: For Girodisc 350mm two-piece rear rotor systems only. Designed to mate with original Girodisc aluminum hats — not compatible with factory two-piece rotor hats or PCCB systems. Features • Sold as a left/right pair with new floating hardware kit• CNC-machined from high-carbon cast iron for heat capacity and strength• Curved directional vanes maximize cooling and reduce fade• Bolt-on fitment to Girodisc aluminum hats — no modifications required• Balanced and heat-treated for consistent braking feel• Manufactured in Bellingham, WA, USA Specifications • Diameter: 350mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $780.00 Girodisc D2-035 Porsche 981 / 718 Rear Replacement Ring FAQs Can these be installed with the OEM Porsche hats? No. These are designed exclusively for Girodisc aluminum hats and are not compatible with factory two-piece rotor assemblies. Will these fit PCCB or steel brake systems? Only the Girodisc steel two-piece rotor system — they are not designed for Porsche Ceramic Composite Brakes (PCCB). Are they suitable for track use? Yes. The high-carbon alloy and floating design resist cracking and warping under repeated high-temperature braking on track. How do I know when to replace the rings? Replace them when the rotor surface reaches minimum thickness or shows visible heat checking, per Girodisc wear specifications. Restore confidence in your Porsche 981 or 718 Cayman and Boxster with Girodisc D2-035 350mm rear replacement rings — the perfect blend of precision, performance, and cost-effective service life.

Girodisc Ford GT350/GT350R Rear Rotor Rings Rear Fitment, Ford Shelby GT350/GT350R with Girodisc A2-162 rotors The Girodisc D1-162 is the direct replacement rotor rings for your Girodisc A2-162 brake rotor kit. This complete kit consists of two new discs (rotor rings) and all replacement hardware. You will re-use the Girodisc aluminum hats from your A2-162 kit and bring your braking feel back to new. Girodisc GT350 Rear Rotor Rings Details Manufacturer: Girodisc Manufacturer Part Number: D2-162 Surface: Slotted Material: Steel Intended for Street/Track Use: Yes For Use with Stock Calipers: Yes Rotor Construction: Vented Rotor Style: Slotted surface Rotor Material: Iron Rotor Finish: Black E-coat Quantity: Sold pair (one axle set) Sold/priced per pair of rings only (does not include center hat and does NOT fit OEM hats.) Girodisc Advantages Girodisc brake kits are seen at every track weekend on very exotic and extreme track cars. What made Girodisc owners leave their OEM rotors and upgrade to a 2 piece Girodisc kit? Less Rotating Mass via two-piece design Grade 12 floating hardware to allow the rotor to grow when heated Curved vane design creates a cooler rotor Significant cost reduction compared to OEM Girodisc Floating Rotor Rings Quality hi-carbon cast iron is the foundation of every Girodisc brake rotor. Every rotor ring is made carefully in house at the Girodisc factory in Washington state. The Girodisc rotor utilizes a curved vane design that was originally developed in racing to act as a centrifugal air pump to force cooling air from the center of the rotor ring to the outside. This principle is similar to what is know as a squirrel cage fan design. By having impellers (vanes) between the two rotor faces, the air is moved radially, from the center outward, changing the direction of the airflow and increasing velocity. This design is mechanically strong, reliable, and very effective. Girodisc Rotor Ring Hardware The Girodisc rotor ring and light-weight aluminum hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to their own specifications and cadmium plated for long-lasting corrosion resistance. These drive pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The drive 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. Girodisc Rotor Ring Replacement Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Your Girodisc replacement rotor rings come complete with two new rotor rings and all required floating rotor hardware. This is a very simple task that is quite fun. The aluminum rotor hat usually does not ever need replacement unless bent or damaged. If you damaged has reached your Girodisc hat, you likely have more than a few other things to replace also. The hat is rugged and overly strong.

Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings The Girodisc D2-228 Rear Replacement Rotor Rings are designed as direct replacements for the factory two-piece rear iron rotors on the Lamborghini Huracán Super Trofeo. Developed to handle the intense demands of GT competition, these rotor rings deliver exceptional cooling, strength, and consistency under the most punishing braking conditions. Race-Proven Design for the Huracán Super Trofeo Each Girodisc D2-228 ring is precision-machined from Girodisc’s proprietary cast iron alloy, poured and finished entirely in the USA. The curved vane internal structure acts as a centrifugal air pump, pulling cool air through the rotor to maintain stable temperatures and reduce fade during long stints. Sold as a pair, these replacement rings bolt directly to your existing factory aluminum hats reusing your factory tension-spring hardware. Features Direct replacement for Lamborghini Huracán Super Trofeo rear iron rotors Manufactured from Girodisc proprietary cast iron alloy in the USA Curved vane internal geometry improves airflow and cooling Does not include mounting hardware – reuse factory tension-spring hardware Engineered to bolt to the factory aluminum hats Optimized for race-level durability and consistency Sold/priced per pair Not compatible with Girodisc or other brands' hats Vehicle Fitment Lamborghini Huracán Super Trofeo (All model years) – Rear Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings FAQs Do I reuse my existing Lamborghini hats? Yes. These replacement rings bolt directly onto your factory aluminum hats using the factory tension-spring hardware. Are these compatible with OEM or factory 2-piece rotors? Yes. These rings are engineered exclusively for the OEM rear brake hats. What is included in the kit? Two replacement iron rotor rings (left and right). Are these rotors directional? Yes. Each rotor features directional curved vanes for efficient heat evacuation and cooling. Do they perform better than OEM? Yes. Girodisc rotors are lighter, run cooler, and maintain consistent braking under repeated heavy loads compared to OEM components. Are they sold as a set? Yes. The Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings are sold as a matched pair. Maintain the championship-level braking performance of your Huracán Super Trofeo with Girodisc D2-228 Rear Replacement Rotor Rings—precision-built for endurance, cooling, and strength on the world’s toughest circuits.

Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings The Girodisc D2-232 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rear rotors on the Nissan GT-R. Designed to restore your braking system’s performance, these rotor rings deliver exceptional cooling, balance, and durability under extreme driving conditions—on both street and track. Engineered for the GT-R’s Performance Demands Each Girodisc D2-232 replacement ring is machined in the USA from Girodisc’s proprietary cast iron alloy, formulated for strength, heat capacity, and friction consistency. The curved vane internal geometry functions as a centrifugal air pump, pulling air through the disc to lower temperatures and prevent brake fade. This kit includes all necessary hardware and bolts directly to your existing Girodisc aluminum hats, ensuring a quick and precise installation. Features • Direct replacement for Girodisc Nissan GT-R rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for efficient cooling and fade resistance• Reuses existing Girodisc aluminum hats• Includes complete hardware kit for installation• Designed for maximum strength and balanced weight distribution• Sold/priced per pair ($880.00)• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Nissan GT-R (R35) – Rear• Fits Girodisc two-piece rotor systems• Will not fit OEM or non-Girodisc two-piece rotors Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings FAQs Can I reuse my existing Girodisc hats? Yes. These replacement rings are designed to bolt directly onto your Girodisc aluminum hats with the included hardware kit. What’s included in the package? Two iron rotor rings (left and right) and all necessary mounting hardware for a complete reinstallation. Are these rotors directional? Yes. Each rotor features directional curved vanes—be sure to install them correctly for optimal airflow and cooling performance. Will these fit OEM or other aftermarket systems? No. These replacement rings are exclusively engineered for Girodisc two-piece rotors and are not compatible with factory or non-Girodisc hats. How do these compare to OEM rotors? Girodisc rotors offer improved cooling, reduced weight, and more consistent braking under repeated hard use compared to OEM components. Are they sold individually or as a set? The Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Restore the precision and performance of your GT-R’s braking system with Girodisc D2-232 Rear Replacement Rotor Rings—crafted in the USA for superior cooling, balance, and endurance.

Girodisc Rear Brake Rotors – Nissan GT-R The Girodisc A2-232 Rear Rotor Kit is a direct replacement for the OEM rear rotors on the Nissan GT-R. Designed to deliver race-proven performance with factory fitment, these lightweight two-piece rotors enhance cooling efficiency, reduce unsprung weight, and maintain perfect compatibility with stock calipers and ABS. Lightweight Performance. Race-Ready Engineering. Each Girodisc rotor combines a precision-machined 6061-T6 aluminum hat with a proprietary cast-iron ring, both sourced and built in the USA. The curved vane internal geometry acts as a centrifugal air pump, forcing cooling air through the disc to reduce temperatures and prevent fade under aggressive driving. The floating mount system allows the rotor ring to expand naturally under heat without warping or coning, maintaining consistent pedal feel and braking balance. Features • Direct replacement for OEM Nissan GT-R rear rotors• Two-piece floating design: cast-iron rotor ring + 6061-T6 aluminum hat• Curved-vane internal cooling for heat management• Floating mount system with cadmium-plated drive pins and class 12.9 hardware• Anti-noise spring washers eliminate rattle when cold• Reduces unsprung and rotational mass• Maintains factory ABS and brake bias• Reusable hats – replace rings when worn• Sold/priced per pair Vehicle Fitment • Nissan GT-R (All R35 models) – Rear• Direct OEM bolt-on replacement• Works with factory calipers and ABS Girodisc A2-232 Rear Rotors – Nissan GT-R FAQs Do these rotors fit the stock calipers? Yes. The A2-232 rotors bolt directly to OEM calipers and retain factory brake balance and ABS performance. What’s the benefit of a floating two-piece design? The floating mount allows for thermal expansion and self-centering, improving braking consistency and minimizing stress that leads to rotor cracking or distortion. Are replacement rings available? Yes. Girodisc offers replacement rings that allow you to reuse the aluminum hats and hardware for cost-effective long-term maintenance. Do these rotors make noise? No. Anti-noise spring washers eliminate rattle when cold while preserving the benefits of a true floating design under heat. Are these rotors lighter than OEM? Yes. The aluminum hat significantly reduces unsprung and rotational mass, improving acceleration, handling, and ride quality. Are they sold individually or as a set? The Girodisc A2-232 rotors are sold as a pair for the rear axle. Upgrade your Nissan GT-R with the Girodisc A2-232 2-Piece Rear Brake Rotors—built for drivers who demand precision, performance, and reliability on both street and track.

Girodisc Corvette C8 Z51 Rear Rotor Rings The Girodisc D2-242 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rotors on the Chevrolet Corvette C8 Z51. Designed for seamless fitment and peak braking performance, these iron rings restore the stopping power, cooling efficiency, and balanced pedal feel your Girodisc system was built to deliver. Restore Performance with Genuine Girodisc Components Manufactured and machined entirely in the USA, each rotor ring is cast from Girodisc’s proprietary iron alloy for superior strength, thermal stability, and friction consistency. The curved vane internal structure acts as a centrifugal air pump, pulling cooling air through the rotor to maintain ideal temperatures under repeated hard braking. Sold in pairs and supplied with new hardware, these rings bolt directly to your existing Girodisc aluminum hats with no modification required. Features • Direct replacement for Girodisc Corvette C8 Z51 rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for enhanced cooling and fade resistance• Includes full replacement hardware kit for installation• Reuses Girodisc aluminum hats• Maintains OEM fitment and brake bias• Sold/priced per pair• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Chevrolet Corvette C8 Z51 (All Years) – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM two-piece rotors or other aftermarket hats Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings FAQs Can I reuse my Girodisc aluminum hats? Yes. These replacement rings are designed to bolt directly onto your existing Girodisc hats using the included hardware. What’s included in the kit? Two iron rotor rings (left and right) and all necessary hardware for reassembly. Do these fit OEM rotors or other brands? No. Girodisc replacement rings are engineered exclusively for Girodisc systems and are not compatible with OEM or other aftermarket hats. Are the rotors directional? Yes. Each ring is labeled left and right to ensure proper airflow through the curved vane cooling system. Do these improve performance over OEM? Yes. Girodisc rotors are lighter, run cooler, and offer more consistent braking under track or spirited driving conditions compared to factory components. Are they sold as a set? Yes. The Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Maintain the performance and precision of your braking system with Girodisc D2-242 Rear Replacement Rotor Rings—engineered for the Corvette C8 Z51 to deliver race-bred strength, superior cooling, and consistent stopping power lap after lap.

Girodisc Corvette C7 Z06 / Grand Sport Rear Replacement Rotor Rings   The Girodisc D2-147 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rear rotors used on the Chevrolet Corvette C7 Z06 and Grand Sport. Designed to restore braking performance and maintain Girodisc’s unmatched cooling efficiency, these rings deliver lightweight strength, balance, and durability for both street and track use. Vehicle Fitment • Chevrolet Corvette C7 Z06 – Rear• Chevrolet Corvette C7 Grand Sport – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM or non-Girodisc two-piece rotors High-Performance Construction for the C7 Platform Each Girodisc D2-147 replacement ring is manufactured in the USA using Girodisc’s proprietary high-carbon cast iron alloy, developed for superior strength and thermal stability. The internal curved vane design acts as a centrifugal air pump, forcing cooling air through the disc to minimize fade and maintain consistent braking under the most demanding conditions. Sold as a matched pair, the rings include new hardware and are a direct bolt-on fit to your existing Girodisc aluminum hats. Features • Size: 370mm x 30mm• Direct replacement for Girodisc Corvette C7 Z06 / Grand Sport rear rotors• Proprietary high-carbon iron alloy poured and machined in the USA• Curved vane internal geometry for improved airflow and cooling• Includes full hardware kit (pins, bolts, washers)• Reuses Girodisc aluminum hats• Maintains OEM brake bias and ABS calibration• Sold/priced per pair ($730.00)• Not compatible with OEM or non-Girodisc hats Girodisc D2-147 Corvette C7 Z06 / Grand Sport Rear Replacement Rotor Rings FAQs Can I reuse my Girodisc aluminum hats? Yes. These replacement rings are designed to bolt directly onto your existing Girodisc hats using the supplied hardware kit. Are these compatible with OEM or factory rotors? No. Girodisc rings are designed exclusively for Girodisc two-piece systems and will not fit OEM or other aftermarket hats. What’s included in the kit? Two 370mm rear iron rotor rings (left and right) and all necessary hardware for reassembly. Are the rotors directional? Yes. Each rotor is marked left and right and uses directional curved vanes for optimal cooling and airflow. Do these improve performance over OEM rotors? Yes. Girodisc rotors reduce unsprung weight, improve heat dissipation, and provide consistent braking under high loads, making them ideal for both street and track performance. Are they sold as a set? Yes. The Girodisc D2-147 Corvette C7 Z06 / Grand Sport Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Maintain your Corvette’s legendary braking precision with Girodisc D2-147 Rear Replacement Rotor Rings—crafted in the USA for unmatched quality, cooling, and race-proven performance.

A2-130 Girodisc Audi B8/B9 Rear Rotors Girodisc A2-130 two-piece rear rotors are a direct, bolt-on upgrade for Audi B8 and B9 chassis using the 330 mm rear rotor package. The floating design preserves parking brake function while cutting unsprung weight and improving cooling. Vehicle Fitment Audi S4 (B8/B9) – Rear Audi S5 (B8/B9) – Rear Audi SQ5 (B8/B9) – Rear Stable Performance Under Heat High-carbon iron rings with curved vanes pull air through the disc for efficient heat rejection, while reusable 6061-T6 hats keep long-term service costs down. Features Direct OE replacement; no modifications required Two-piece floating construction High-carbon rings with curved internal vanes Reusable aluminum hats; cadmium-plated hardware Manufactured and assembled in Bellingham, WA A2-130 FAQs Parking brake? Fully compatible; hat offset maintains OE parking brake operation. Noise? Spring-preloaded hardware minimizes rattle during street use. Rear ring part number? D2-130 rear replacement rings.

Girodisc Audi R8, Lamborghini Rear Rotors Unlock world-class braking performance with Girodisc’s lightweight two-piece rear rotors for the Audi R8 and Lamborghini platform. Designed as a direct OEM replacement, these precision-engineered rotors enhance cooling efficiency, reduce unsprung mass, and maintain perfect brake balance under demanding conditions on the street or track. Vehicle Fitment Audi R8 (All V8 & V10 Models, including Plus)Lamborghini Gallardo (All Models)Lamborghini Huracán (Iron Rotor Applications)Direct OEM replacement—works with factory calipers and hardware. Lightweight, Precision-Machined Performance The Girodisc system is a direct replacement for factory discs and bolts on with no modifications required. Each assembly pairs a CNC-machined 6061-T6 aluminum hat with Girodisc’s proprietary cast-iron friction rings. The floating two-piece construction manages heat expansion evenly, improving rotor life and eliminating warping. Internal curved vanes act as centrifugal pumps to move air through the rotor for consistent cooling during extended performance driving. Features • Direct OEM replacement – bolts to factory hubs• 6061-T6 billet aluminum hats, machined and hard-anodized in the USA• Proprietary cast-iron friction rings with racing-grade metallurgy• Floating mount system with cadmium-plated steel drive pins• Anti-noise spring washers maintain float and prevent rattling• Curved internal vanes for superior heat evacuation• Significant unsprung weight reduction over OEM rotors• Maintains factory brake bias and ABS calibration• Fully rebuildable – replace only rotor rings when worn• Sold/priced per pair Girodisc A2-050 Rear Rotor FAQs: Will these fit both Audi R8 and Lamborghini models? Yes. These rotors are engineered for the shared Audi/Lamborghini chassis, ensuring a perfect OEM bolt-on fit with factory calipers. Do these reduce weight compared to stock rotors? Absolutely. Girodisc’s two-piece design cuts significant unsprung and rotational weight for quicker response and improved handling. Can I use these for track days? Yes. The high-carbon cast-iron material and curved vane design provide exceptional thermal stability under heavy braking conditions. Do they work with OEM brake pads? 100%. You can use factory pads or upgrade to a performance compound for aggressive driving or racing use. Enhance your Audi R8 or Lamborghini braking system with Girodisc rear rotors—engineered to deliver lightweight durability and consistent stopping power worthy of supercar performance.

Girodisc Dodge Viper ('03+) Rear Rotors Enhance the braking performance of your Dodge Viper with Girodisc lightweight two-piece rear rotors. Engineered as a direct OEM replacement, these precision-built rotors reduce unsprung weight, improve cooling, and deliver more consistent braking performance whether on the street or at the track. Perfect for Viper owners who demand top-tier stopping power and thermal control without altering factory balance or ABS calibration. Vehicle Fitment Compatible with:• Dodge Viper SRT-10 (2003–2010)• Dodge Viper SRT GTS & ACR (2013–2017)Direct OEM replacement – bolts to factory hubs and calipers with no modifications required. Performance You Can Feel The Girodisc system replaces the factory one-piece rotors with a floating two-piece design that minimizes unsprung mass and maximizes cooling efficiency. Each aluminum hat is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum and hard-anodized for strength and corrosion resistance. The iron rings are Girodisc’s proprietary cast alloy—poured, heat-treated, and machined entirely in the USA. Curved directional vanes inside each disc act as centrifugal pumps, pulling air through the rotor for superior temperature control under high-performance use. Features • Direct OEM replacement for Dodge Viper rear rotors ('03 and newer)• Lightweight two-piece floating rotor assembly• CNC-machined 6061-T6 aluminum hats with hard-anodized finish• Proprietary cast-iron friction rings for improved heat stability• Curved vane design enhances airflow and cooling• 5–6 lbs lighter per rotor than OEM (18 lbs vs. 24.5 lbs)• Cadmium-plated steel drive pins resist corrosion• Anti-noise spring washers eliminate rattle and vibration• Maintains factory brake bias and ABS operation• Fully rebuildable – replace only the iron rings when needed• Made in the USA• Sold/priced per pair Girodisc A2-006 Rear Rotor FAQs: Are these rotors a direct fit for the Viper? Yes. The A2-006 Girodisc rotors bolt directly to OEM hubs and calipers with no modifications required, maintaining full compatibility with factory brake components. How much weight savings can I expect? Each Girodisc rotor is roughly 5–6 lbs lighter than the stock unit—reducing rotational mass and improving suspension response for sharper handling and acceleration. Will these rotors work for track use? Absolutely. Girodisc’s two-piece floating design is built for sustained high-temperature operation and delivers consistent, fade-free braking even in the most demanding conditions. Do I need to change pads with these rotors? Not necessarily. The rotors are compatible with OEM pads or any high-performance aftermarket compound, though a fresh pad set is always recommended when installing new rotors for optimal performance. Upgrade your Dodge Viper’s braking system with Girodisc two-piece rear rotors—precision-built for reduced weight, superior cooling, and unmatched reliability under any driving conditions.

Girodisc Mercedes SL55/63 Rear Rotors Upgrade your AMG’s stopping power with Girodisc’s two-piece rear rotors for the Mercedes SL55 and SL63. Engineered as a direct replacement for the factory rotors, this setup delivers lighter weight, improved cooling, and consistent high-speed braking performance—without altering factory bias or ABS calibration. Vehicle Fitment Mercedes-Benz SL55 AMG (R230)Mercedes-Benz SL63 AMG (R230)Direct OEM replacement – no modifications required Precision Engineering for AMG Performance The Girodisc system replaces the heavy one-piece OE rotors with lightweight, fully floating two-piece assemblies. The hats are precision-machined from 6061-T6 aircraft-grade aluminum and paired with Girodisc’s proprietary cast-iron rings, both manufactured in the USA. The 48 curved vane design acts as a centrifugal pump, pulling air through the rotor for exceptional cooling and fade resistance under track or spirited driving. Features • Direct bolt-on OEM replacement• 6061-T6 billet aluminum hats, machined and anodized in the USA• Proprietary cast-iron friction rings, cast and machined in-house• Floating mount system with cadmium-plated high-strength steel drive pins• Anti-noise spring washers eliminate rattle while allowing thermal growth• 48 curved directional vanes maximize airflow and cooling• Significantly reduces unsprung and rotational mass• Maintains factory brake bias and ABS efficiency• Fully rebuildable – replace friction rings when needed• Sold/priced per pair Girodisc A2-030 Rear Rotor FAQs: Do these fit both the SL55 and SL63 AMG? Yes. The A2-030 rotors are designed as a direct OEM replacement for both AMG models without any modification or adapters. How much weight reduction should I expect? Girodisc rotors are several pounds lighter per corner than the factory one-piece rotors, improving suspension response and reducing rotational inertia. Are they quieter than stock rotors? Yes. The anti-noise spring washer system prevents the rattle commonly associated with floating rotors, ensuring smooth and quiet operation. Will these handle track use? Absolutely. The curved vane internal design provides superior airflow and thermal stability, ideal for both high-performance street and track environments. Enhance your AMG’s precision and performance with Girodisc rear rotors—crafted to deliver cooler, lighter, and more controlled braking every drive.

Girodisc Subaru WRX STI Rear Rotors Designed for enthusiasts who demand faster response and greater stopping consistency, Girodisc rear rotors for the 2008–2017 Subaru WRX STI combine lightweight performance with race-proven cooling technology. These two-piece floating rotors deliver improved balance, heat control, and durability—ideal for both spirited street driving and track days. Vehicle Fitment Subaru WRX STI (2008–2017)Compatible with OEM Brembo rear calipers and factory parking brake system. Lightweight, High-Performance Design The Girodisc system bolts directly to factory hubs. Some OEM and aftermarket brake pads require minor modification to clear the hardware while retaining the stock parking brake. This simple adjustment involves slightly grinding the backing plate to match the pad’s arc, and full instructions are included. Pads supplied by Girodisc for this application are already CNC-modified for a direct fit. Each rotor assembly combines a 6061-T6 aluminum hat with Girodisc’s proprietary cast-iron friction ring, cast and machined in the USA. The curved internal vane structure acts as a centrifugal pump, pulling air through the rotor to maximize cooling and reduce fade. At only 11 lbs each versus 18 lbs stock, these rotors significantly reduce unsprung and rotational weight for sharper handling and quicker acceleration. Features • Direct replacement for OEM rotors – minor pad modification may be required• 6061-T6 billet aluminum hats, hard-anodized for corrosion resistance• Proprietary cast-iron friction rings cast and machined in the USA• Floating mount system with cadmium-plated steel drive pins• Anti-noise spring washers prevent rattle while maintaining float• Curved vane design enhances airflow and cooling• 11 lbs per rotor vs. 18 lbs OEM – reduces unsprung mass by 7 lbs each• Fully rebuildable – replace only the iron rings when worn• Sold/priced per pair Girodisc A2-095 Rear Rotor FAQs: Do these rotors require modification to install? The rotors themselves bolt directly on. However, some brake pads require minor backing plate modification to clear the hardware. Full instructions are provided, and Girodisc pads are pre-machined for plug-and-play use. Will these rotors retain my factory parking brake? Yes. Girodisc specifically designed this setup to keep full functionality of the OEM parking brake system. How much weight savings can I expect? Each Girodisc rotor is approximately 7 lbs lighter than stock, reducing rotational inertia and improving suspension response. Are these suitable for track days or street use? Absolutely. These rotors are engineered for both daily driving and high-performance conditions, providing better cooling and fade resistance under load. Upgrade your Subaru WRX STI with Girodisc rear rotors for lighter, cooler, and more consistent braking performance—precision-built to handle everything from mountain roads to race circuits.