-20% sale
A black Sparco Ultra Carbon racing seat made of carbon fiber with no upholstery, showing the brand logo on the top backrest.
Sparco ULTRA Carbon Racing Seat (2030 Expiry) $2,142.00 $2,676.00
Sparco ULTRA Carbon Racing Seat – FIA 8855-1999 Approved  - 2030 Expiry Extreme weight reduction meets uncompromising carbon fiber racing seat technology. The Sparco ULTRA Carbon Racing Seat is engineered for serious motorsport competitors who demand exceptional strength, minimal weight, and a low seating position. Constructed from aerospace-grade pre-preg carbon fiber, this ultra-lightweight fixed-back competition seat combines advanced materials with a purpose-built ergonomic design. Weighing approximately 8.3 lbs (3.8 kg), the Sparco ULTRA Carbon represents one of Sparco's most weight-focused FIA-approved racing seat designs. Its exposed dry carbon construction eliminates traditional upholstery and padding, reducing unnecessary weight while providing a more direct connection between the driver and vehicle. Designed for narrow racing cockpits, the ULTRA Carbon provides an exceptionally compact profile without sacrificing the contoured support needed during demanding competition. Its sculpted monocoque shell, integrated harness openings, and low seating position make it an outstanding choice for lightweight race cars, time attack builds, and competition vehicles where every pound matters. Sparco ULTRA Carbon Racing Seat Features FIA 8855-1999 Homologated: Competition racing seat designed to meet recognized FIA safety requirements. Ultra-Lightweight Construction: Approximately 8.3 lbs (3.8 kg) for exceptional weight savings. Pre-Preg Carbon Fiber Shell: Aerospace-grade dry carbon construction delivers excellent strength with minimal weight. Exposed Carbon Finish: Uncovered carbon fiber shell eliminates conventional fabric upholstery and padding. Low Seating Position: Thin, sculpted shell allows the driver to sit lower in the vehicle. Narrow Cockpit Compatibility: Compact exterior dimensions help accommodate restricted racing interiors. Ergonomic Monocoque Design: Integrated lumbar contouring and carefully engineered recline provide natural driver support. Direct Chassis Feedback: Minimal cushioning allows drivers to experience a more connected seating position. Integrated Harness Openings: Shoulder harness pass-through openings accommodate compatible motorsport harness systems. Side-Mount Installation: Designed for installation using compatible Sparco aluminum side brackets. Premium Racing Appearance: Glossy exposed carbon weave delivers a distinctive professional motorsport finish. Ultra-Lightweight Pre-Preg Carbon Fiber Construction The Sparco ULTRA Carbon Racing Seat uses advanced pre-preg carbon fiber technology to achieve an outstanding strength-to-weight ratio. Unlike conventional composite racing seats, which often rely on thicker shells, padding, and upholstery, the ULTRA Carbon focuses on minimizing material weight while maintaining the structural performance required for competition. Pre-preg carbon fiber construction utilizes reinforcement materials impregnated with a controlled amount of resin. This manufacturing method supports consistent material distribution and efficient structural design. The result is a lightweight carbon fiber monocoque shell that provides an exceptionally direct seating experience without unnecessary layers or bulk. Designed for Narrow Racing Cockpits Many competition vehicles have limited interior space, especially when equipped with roll cages, door bars, center tunnels, and specialized safety equipment. The Sparco ULTRA Carbon addresses these challenges with a compact, low-profile shell that allows installation in tight racing environments. Its streamlined side profile and carefully contoured seating area help maximize available cockpit space while supporting a secure driving position. This makes the ULTRA Carbon especially appealing for lightweight race car builds, track-focused vehicles, and custom motorsport applications where traditional racing seats may be too wide or bulky. Lower Seating Position and Improved Chassis Feedback The ULTRA Carbon eliminates conventional fabric upholstery and thick foam padding to create a seating surface that is both exceptionally lightweight and remarkably direct. By positioning the driver closer to the carbon shell, the seat can help lower the seating position compared with bulkier upholstered alternatives, depending on the mounting configuration. A lower seating position can improve helmet clearance, accommodate drivers within tight roll cage structures, and support more favorable driver positioning in competition vehicles. The rigid carbon construction also provides direct feedback from the vehicle chassis, allowing drivers to feel more connected to the car's movement during acceleration, braking, and cornering. Ergonomic Support Without Traditional Upholstery Despite its minimalist appearance, the Sparco ULTRA Carbon is engineered with driver ergonomics in mind. The one-piece carbon shell incorporates carefully shaped back support, lumbar contouring, and a natural recline angle intended to accommodate the driver's seated position. Its sculpted seating surface supports the body without requiring traditional foam cushions or fabric coverings. Drivers should evaluate the seat's shape and dimensions carefully to ensure a secure fit, particularly when selecting a seat for extended endurance racing sessions. FIA 8855-1999 Racing Seat Homologation The Sparco ULTRA Carbon carries FIA 8855-1999 homologation and is designed for use in motorsport applications requiring an approved fixed-back competition seat. Its lightweight carbon construction and competition-focused design make it suitable for professional and amateur racing applications where the seat complies with the applicable sanctioning body's regulations. Always verify the seat's homologation label, expiration requirements, mounting configuration, and competition eligibility before installation. Sparco ULTRA Carbon Racing Seat Specifications Manufacturer: Sparco Model: ULTRA Carbon Manufacturer Part Number: 008037ZNR Seat Type: Fixed-Back Competition Racing Seat FIA Homologation: FIA 8855-1999 Shell Material: Pre-Preg Carbon Fiber Construction: Lightweight Carbon Fiber Monocoque Weight: Approximately 8.3 lbs (3.8 kg) Finish: Exposed Black Carbon Fiber Upholstery: None – Bare Carbon Shell Size: Single-Size Competition Shell Fitment Guidance: Approximately Medium/Large, up to 36-inch waist depending on driver build Mounting: Side-Mount Configuration Applications: Auto Racing, Time Attack, Club Racing, and Track-Focused Competition Vehicles Sparco ULTRA Carbon Racing Seat Dimensions Proper seat measurements are especially important when installing a fixed-back racing seat in a narrow cockpit or competition vehicle with roll cage clearance restrictions. The dimensions below are based on the supplied product dimension drawing. Front Overall Width: 17.76 inches (451 mm) Rear Overall Width: 17.13 inches (435 mm) Front Mounting Width: 14.72 inches (374 mm) Rear Mounting Width: 13.90 inches (353 mm) Overall Height: 33.46 inches (850 mm) Overall Depth: 29.53 inches (750 mm) Side Mounting Hole Spacing: 11.42 inches (290 mm) Fitment Note: Measure the available cockpit width, roll cage clearance, mounting points, seat height, and driver position before purchasing. Dimensions should be confirmed against the current manufacturer's technical drawing before fabrication or permanent installation. Why Choose the Sparco ULTRA Carbon Racing Seat? The Sparco ULTRA Carbon is designed for racers who prioritize low weight, compact fitment, and direct driver feedback. Its pre-preg carbon fiber construction, minimalist seating surface, and ergonomic monocoque shape distinguish it from conventional fabric-covered racing seats. For competition vehicles where every pound matters, the ULTRA Carbon offers an exceptional combination of advanced materials, purposeful engineering, and professional racing aesthetics. Sparco ULTRA Carbon Racing Seat Frequently Asked Questions How much does the Sparco ULTRA Carbon Racing Seat weigh? The Sparco ULTRA Carbon has a listed weight of approximately 8.3 lbs (3.8 kg), making it an exceptionally lightweight fixed-back competition seat. Is the Sparco ULTRA Carbon FIA approved? Yes. The seat carries FIA 8855-1999 homologation. Verify the seat's homologation label and your racing organization's eligibility requirements before competition. What is the Sparco ULTRA Carbon made from? The seat uses high-strength pre-preg aerospace-grade carbon fiber, commonly referred to as dry carbon, to achieve a high strength-to-weight ratio. Does the Sparco ULTRA Carbon come with padding? The ULTRA Carbon is designed for use without conventional fabric upholstery or foam padding. Its sculpted carbon shell provides the primary seating surface. What size driver fits the Sparco ULTRA Carbon Racing Seat? The seat is offered in a single-size configuration, commonly described as a Medium/Large fit for drivers with approximately a 36-inch waist or smaller. Actual fit depends on hip width, torso dimensions, driving position, and personal preference. Can the Sparco ULTRA Carbon fit into a narrow race car cockpit? Yes. Its compact shell and narrow exterior design make it especially suitable for applications where traditional racing seats may have clearance issues. Always verify dimensions before installation. What mounting brackets are required? Sparco recommends the 600W or 600W90 aluminum side-mount brackets for installation due to the ULTRA Carbon's unique shell geometry. Does the Sparco ULTRA Carbon include seat brackets? Mounting brackets are separate components unless specifically included in a product bundle. Vehicle-specific installation hardware may also be necessary. Can the Sparco ULTRA Carbon improve driving position? Its slim carbon construction and compatible low-position side mounting can allow a lower seating position, depending on the vehicle and installation. Is the Sparco ULTRA Carbon suitable for track days and racing? Yes. The seat is intended for competition motorsport applications, including track-focused builds, time attack, and club racing where the installation and homologation meet event requirements. Shop the Sparco ULTRA Carbon Racing Seat Experience premium carbon fiber seat construction engineered for the demands of serious motorsport competition. With its exceptionally lightweight monocoque shell, FIA 8855-1999 homologation, narrow cockpit fitment, and low seating position, the Sparco ULTRA Carbon delivers the performance-focused design racers expect from Sparco. Upgrade your race car with the Sparco ULTRA Carbon Racing Seat and experience an exceptionally direct, lightweight driving position.  
A1-187 Girodisc Audi C7 S6 / S7 & D4 S8 Front Rotors
A1-187 Girodisc Audi C7 S6 / S7 & D4 S8 Front Rotors $2,099.00
Audi C7 S6, S7 & D4 S8 Front Rotors Girodisc floating front rotors are a bolt-on upgrade for Audi S6/S7 (C7) and S8 (D4) models, retaining OEM brake balance and electronics. At ~29.3 lbs vs. ~33.3 lbs stock, they cut unsprung mass while enhancing heat control for consistent stops. Precision-Engineered Performance Vehicle Fitment Audi S6 (C7) Audi S7 (C7) Audi S8 (D4) Features Direct OEM fit: Installs with factory calipers and hardware—no adapters required. Curved vane design: Centrifugal airflow through the rotor reduces temperatures and fade. Twelve-pin floating mount: Alloy pins, class 12.9 screws, and anti-noise washers for silent expansion. Serviceable two-piece build: Reuse the hats and replace rings when worn. Domestic manufacturing: 6061-T6 hats and high-carbon iron rings machined in-house. FAQs Is this a plug-and-play upgrade? Yes—no modifications are required for S6/S7 C7 or S8 D4 fitment. Daily-drive friendly? Yes, quiet and smooth for street use with the durability for spirited driving. Do I need special pads? Any quality pad compound for the OEM caliper works; choose per your use case. Sold as a pair? Yes, pricing is per pair. Improve your Audi’s braking confidence with Girodisc’s lighter, cooler-running front rotors for C7 S6/S7 and D4 S8.
A1-194 Girodisc BMW E9X M3 / F8X M2, M3, M4 Essex AP BBK Front Rotors
A1-194 Girodisc BMW E9X M3 / F8X M2, M3, M4 Essex AP BBK Front Rotors $2,099.00
BMW E9X M3 / F8X M2, M3, M4 Essex AP BBK Front Rotors (372x36mm) Girodisc’s 372x36mm front rotors are the ideal replacement for BMW M2, M3, and M4 models equipped with the Essex/AP Racing big brake kit. Engineered for both 9660 and 9668 caliper variants, these 2-piece floating rotors offer superior cooling, lower weight, and consistent braking feel under extreme heat. They’re a direct fit upgrade that combines motorsport-grade performance with OEM-level refinement. Precision-Built for Track-Ready BMWs Each Girodisc rotor assembly is crafted from high-strength, U.S.-sourced materials. The anodized aluminum hat is CNC-machined from 6061-T6 alloy, while the cast iron rings use Girodisc’s proprietary high-carbon formula for maximum heat resistance. The curved vane design efficiently draws cooling air through the rotor, keeping brake temperatures under control during aggressive sessions. The floating system allows even expansion, eliminating vibration and maintaining a smooth pedal feel. Vehicle Fitment BMW M2 (F87) with Essex/AP Racing BBK BMW M3 (E9X, F80) with Essex/AP Racing BBK BMW M4 (F82, F83) with Essex/AP Racing BBK Features Direct BBK Replacement: Compatible with AP Racing 9660 and 9668 front calipers. Lightweight 2-Piece Construction: Reduces rotational and unsprung mass for sharper handling and response. Curved Vane Cooling: 72-directional vanes channel airflow through the rotor for rapid heat dissipation. Floating Mount System: Twelve cadmium-plated steel pins and anti-noise washers maintain silent operation under high loads. Replaceable Iron Rings: Hats are reusable—only replace rings when worn. Made in the USA: Designed, machined, and assembled entirely in-house by Girodisc. FAQs – BMW E9X / F8X Essex AP BBK Front Rotors Are these rotors a direct fit for my BBK? Yes—they’re built specifically for the Essex/AP Racing 9660 and 9668 front kits. What benefits do they offer over AP’s standard rings? Girodisc rotors deliver better cooling and durability while maintaining precise floating characteristics. Are they street-friendly? Yes, despite their racing pedigree, they run quietly and smoothly for everyday driving. Do I need new hardware? No, these rotors include all necessary components for installation with your existing BBK setup. Experience improved heat management, lower unsprung weight, and race-ready performance with Girodisc’s 372x36mm rotors for AP-equipped BMW M models.
A1-224 Girodisc Alfa Romeo Giulia, Stelvio Quadrifoglio Front Rotors
A1-224 Girodisc Alfa Romeo Giulia, Stelvio Quadrifoglio Front Rotors $2,099.00
Alfa Romeo Giulia & Stelvio Quadrifoglio Front Rotors Upgrade your Alfa Romeo Giulia or Stelvio Quadrifoglio with Girodisc’s high-performance front rotors. These 2-piece floating rotors are a direct bolt-in replacement for the factory discs—no modifications needed. They preserve your OEM ABS tuning and brake bias while delivering improved cooling, reduced fade, and sharper pedal response. Precision Engineering for Alfa Performance Each rotor is manufactured entirely in the USA using premium materials. The hat section is CNC-machined from U.S.-sourced 6061-T6 aluminum, while the rotor rings are cast from Girodisc’s proprietary high-carbon iron alloy and machined to tight tolerances. The internal curved vanes act like centrifugal pumps to channel airflow through the rotor, maintaining optimal temperatures under hard braking. Vehicle Fitment Alfa Romeo Giulia Quadrifoglio (2017+) Alfa Romeo Stelvio Quadrifoglio (2018+) Features True OEM Fitment: Installs directly using factory mounting points and calipers—no adapters or modifications required. Two-Piece Floating Design: The rotor ring floats relative to the hat using high-strength pins for thermal expansion management and quiet operation. Curved Vane Cooling: Internal vanes pull air through the rotor to dissipate heat efficiently under repeated hard stops. High-Strength Pin Hardware: 12 cadmium-plated alloy steel pins, secured with class 12.9 fasteners and anti-noise spring washers, maintain performance and silence. Long Service Life: Only the cast iron rings need replacement when they wear; the aluminum hats are reusable. Proudly Made in the USA: Every component is engineered, machined, and assembled at Girodisc’s U.S. facility. FAQs – Alfa Giulia / Stelvio Quadrifoglio Front Rotors Will these work with stock Brembo calipers? Yes — they’re designed to mount directly to the factory calipers without needing spacers or adapters. Can I use these rotors for spirited street driving and occasional track days? Absolutely — Girodisc rotors balance track-level performance with street reliability. Do they produce any noise or vibration? The anti-noise spring washers prevent rattle and vibration while still permitting natural thermal expansion. When should I replace the iron rings? Once the rings reach their minimum thickness specification (as per Girodisc guidelines) or show cracking, they should be replaced to maintain safe performance. Transform your Giulia or Stelvio Quadrifoglio’s braking performance with Girodisc’s precision-engineered 2-piece front rotors. Expect cooler operation, sharper response, and lasting reliability lap after lap.
A2-148 Girodisc Mercedes 360mm Rear Rotors
A2-148 Girodisc Mercedes 360mm Rear Rotors $2,099.00
A2-148 Girodisc Mercedes 360mm Rear Rotors These Girodisc A2-148 2-piece slotted rear rotors directly replace factory 360 mm rear discs on select AMG models listed below. Lighter hats and a floating design improve cooling and serviceability. Vehicle Fitment Mercedes-AMG GT / GT S / GT C / GT R (C190) 2016–2021 – Rear (360 mm) Mercedes-AMG GT 4-Door (X290) 2019–2021 – Rear (360 mm) Mercedes-Benz S63 / S65 AMG (W222) 2014–2020 – Rear (non-CCB) Mercedes-Benz SL63 / SL65 AMG (R231) 2012–2017 – Rear (non-CCB) Mercedes-AMG C63 / C63 S (W205) 2015–2019 – Rear (360 mm) Design & Performance High-carbon iron rings with 48 curved internal vanes draw cooling air through the rotor. Floating two-piece construction reduces unsprung weight while reusable aluminum hats allow ring-only replacement. Features Direct OEM replacement (360 mm) for listed rear applications Slotted face pattern for consistent bite and pad deglazing Floating 2-piece construction reduces heat transfer to hubs High-carbon iron rings with reusable aluminum hats 8–12 lb per-axle weight savings vs. OE (model dependent) No brake bias changes; ABS and stability systems remain stock A2-148 Girodisc Mercedes 360mm Rear Rotors FAQs: Will these work with carbon-ceramic packages? No. These rotors are for iron-brake cars only; models with CCB must use CCB-specific components. Do I need to code or recalibrate anything? No coding required. The rotor dimensions match OEM spec for the listed vehicles. Can I replace just the rings later? Yes. Use D2-123 or the correct rear ring kit specified for your hat/kit. Are parking brake shoes affected? No. The rotor hat retains the OEM drum parking brake interface.
A1-308DS Girodisc Mercedes 360mm Front Rotors (Dimpled & Slotted)
A1-308DS Girodisc Mercedes 360mm Front Rotors (Dimpled & Slotted) $2,099.00
A1-308DS Girodisc Mercedes 360mm Front Rotors (Dimpled & Slotted) These Girodisc A1-308DS 2-piece dimpled and slotted front rotors are a direct replacement for factory 360 mm front rotors on Mercedes performance models. The floating two-piece design reduces unsprung weight and improves cooling, while the surface pattern enhances pad bite and gas evacuation. Vehicle Fitment Mercedes-AMG / Mercedes models using 360 mm front rotors Factory OEM 360 mm brake systems on select AMG / performance models High-Performance Dimpled & Slotted Design The 48 curved vane internal structure pulls cooling air through the rotor like a centrifugal pump. Combined with high-carbon iron rings and reusable aluminum hats, this design delivers excellent thermal stability and cost-effective service. Features Direct OEM replacement for 360 mm front rotors Dimpled & slotted rotor surface improves bite and pad cleaning 2-piece floating rotor design reduces unsprung weight High-carbon iron rings with reusable aluminum hats 48 curved vanes for outstanding cooling Manufactured and assembled in Bellingham, WA A1-308DS Girodisc Mercedes 360mm Front Rotors FAQs: Are these a direct fit? Yes, they bolt to factory hubs and work with OEM calipers. Do they work with OEM pads? Yes, and they are compatible with performance pad compounds. Can I replace just the rings later? Yes, reuse the hats with D1-308DS replacement rings. Why dimpled & slotted instead of drilled? The pattern improves bite and gas evacuation while minimizing cracking risk versus fully drilled rotors.
A2-184 Girodisc Corvette C6 ZR1 Rear Iron Rotor Conversion
A2-184 Girodisc Corvette C6 ZR1 Rear Iron Rotor Conversion $2,099.00
Girodisc Corvette C6 ZR1 Rear Iron Rotor  Replace your factory carbon-ceramic rotors with Girodisc’s high-performance iron rotor conversion for the Corvette C6 ZR1. This bolt-on system provides exceptional braking consistency, reduced operating costs, and race-proven heat management—all while maintaining full compatibility with factory calipers and ABS systems. Direct OEM Replacement for Carbon-Ceramic Rotors The Girodisc system is a true plug-and-play upgrade for the C6 ZR1, offering the same dimensions as the OEM carbon-ceramic rotors without requiring any modifications. The two-piece floating design features a CNC-machined 6061-T6 aluminum hat and a proprietary high-carbon cast iron rotor ring. This setup allows the rotor to expand under heat, maintaining consistent contact with brake pads and preventing warping or fade during extreme conditions. Features • Direct replacement for OEM carbon-ceramic rear rotors• Precision-machined 6061-T6 billet aluminum hats• Proprietary high-carbon cast iron rings cast and machined in the USA• Floating mount system with 12 cadmium-plated alloy steel drive pins• Anti-noise spring washers prevent rattling while maintaining float• Curved vane design acts as a centrifugal pump for superior cooling• Fully rebuildable—replace only the rotor rings when worn• Sold/priced in pairs Vehicle Fitment Chevrolet Corvette C6 ZR1 (2009–2013)Compatible with OEM carbon-ceramic brake systems and factory calipers. Girodisc A2-184 Rear Rotor FAQs: Do these Girodisc rotors replace the factory carbon-ceramic setup? Yes, this iron rotor conversion is engineered as a direct replacement for the OEM carbon-ceramic rotors on the C6 ZR1. Are the rotors lighter than the carbon-ceramic ones? No. While slightly heavier, Girodisc rotors provide improved heat capacity, better pedal feel, and lower long-term maintenance costs. Can these rotors handle track use? Absolutely. When combined with quality performance pads and high-temperature brake fluid, Girodisc rotors offer outstanding durability and fade resistance under extreme track conditions. Are they compatible with OEM calipers and sensors? Yes. These rotors fit perfectly with the factory ZR1 calipers and retain all OEM brake system functions. Experience consistent, confidence-inspiring braking on your C6 ZR1 with Girodisc’s rear iron rotor conversion—a proven upgrade for performance enthusiasts and track drivers alike.
A1-216 Girodisc 2pc Front Brake Rotors for Audi RS4, RS5 (B9)
A1-216 Girodisc 2pc Front Brake Rotors for Audi RS4, RS5 (B9) $2,099.00
Audi B9 RS4 / RS5 Front Rotors Unleash the full braking potential of your Audi RS4 or RS5 with Girodisc’s lightweight 2-piece floating front rotors. These are a true bolt-on replacement for the factory discs—no modifications required. By upgrading to Girodisc, you maintain your OEM brake balance and ABS functionality while gaining improved cooling, reduced fade, and a noticeably sharper pedal feel. Engineered for Precision and Performance Each Girodisc rotor is designed and manufactured in the USA from premium materials. The hat is CNC-machined from 6061-T6 aircraft-grade aluminum for strength and reduced weight. The iron rotor rings are cast from Girodisc’s proprietary high-carbon alloy, developed to withstand extreme temperatures and ensure consistent performance under repeated hard stops. The internal curved vane design acts as a centrifugal air pump, pulling cooling air through the disc to keep brake temperatures under control during spirited or track driving. Girodisc A1-216 Vehicle Fitment Audi RS4 (B9, 2018+) Audi RS5 (B9, Coupe & Sportback, 2018+) Features Direct OEM Fit: Bolts directly to factory calipers and hubs with no adapters or modifications needed. Lightweight Two-Piece Design: Reduces rotational and unsprung mass for faster suspension response and improved cornering. Curved Vane Cooling: Directional vanes actively pump air through the disc to improve cooling efficiency and prevent fade. Floating Mount System: Twelve high-strength steel drive pins with anti-noise spring washers allow thermal expansion without rattle or vibration. Serviceable Construction: The aluminum hats are reusable—only replace the cast-iron rings when worn. Made in the USA: Fully machined and assembled domestically with tight quality control. FAQs –Girodisc A1-216 Audi B9 RS4 / RS5 Front Rotors Are these rotors compatible with OEM calipers? Yes, they fit the factory RS-series Brembo calipers directly—no adjustments required. Will these improve braking feel? Absolutely. You’ll notice a more consistent, responsive pedal with improved modulation under high heat. Are Girodisc rotors quieter than stock? Yes—the floating hardware includes anti-noise spring washers that eliminate the rattling common to other two-piece designs. Can these rotors handle track use? Definitely. They’re designed for sustained high temperatures, making them ideal for both spirited road use and heavy circuit work. Give your Audi RS4 or RS5 the braking confidence it deserves with Girodisc’s precision-built floating front rotors. Engineered to deliver unmatched cooling, control, and reliability—whether you’re charging mountain roads or braking deep into a corner at the track.
Racetech RT4100 Racing Seat
Racetech RT4100 Racing Seat from $2,068.00
Racetech RT4100 Series Racing Seats Introducing the all-new Racetech 4100 Series racing seats! The RT4100 is a standard-sized fiberglass race seat. Racetech focused on achieving a lightweight seat shell with optimized geometry, straddling the line between designing the seat to be wide enough in the shoulders to suit the athletic build, but narrow enough to fit in most cockpits. The Racetech 4100 Series patented back-mounted technology has trickled down from the 119 and 129 Series, giving you the option of fixing the seat to the roll bar or cage at shoulder level. The large harness guides and a removable molded base cushion of the Racetech RT4100 Series racing seats allow a range of drivers of varying heights to fit. Breathable Spacer® fabric, parallel sides and pronounced thigh support round off the features of this accomplished motorsport seat. Racetech RT4100 Racing Seat Options RT4100: Standard size, FIA approved RT4100T: Tall size, FIA approved RT4100WT: Wide & tall size, FIA approved All 4100 Series seats use Racetech RTB1009M alloy side mounting brackets (can be added separately). Racetech RT4100 Racing Seat Details Manufacturer: Racetech FIA homologation: 8855-1999 Seat sizes: Standard, Tall (T), or Wide & Tall (WT) Shell weight: 5.7kg (12.5 lbs) to 6.0kg (13.2 lbs) Shell construction: fiberglass composite Gel-coat: gloss black Seat covering: black fire-retardant nylon fabric with Spacer® mesh through the torso Back-mount compatible: yes
A2-224 Girodisc 2-Piece Rear Brake Rotors – Alfa Romeo Quadrifoglio / Maserati
A2-224 Girodisc 2-Piece Rear Brake Rotors – Alfa Romeo Quadrifoglio / Maserati $1,954.00
Girodisc Rear Brake Rotors – Alfa Romeo Quadrifoglio / Maserati The Girodisc A2-224 Rear Rotor Kit is a high-performance, direct replacement for factory rear rotors on Alfa Romeo Quadrifoglio and select Maserati models. Built to withstand extreme heat and aggressive driving, these lightweight two-piece rotors improve cooling efficiency and responsiveness while maintaining OEM brake balance and ABS function. Lightweight Performance Meets Italian Engineering Each rotor is crafted using Girodisc’s precision two-piece floating design—featuring a CNC-machined 6061-T6 aluminum hat paired with a proprietary cast-iron friction ring. The curved vane internal geometry acts as a centrifugal air pump, forcing cool air through the disc to reduce heat, fade, and warping during track or spirited driving. The result: consistent, confidence-inspiring braking performance without compromising everyday drivability. Features • Direct-fit replacement for Alfa Romeo Quadrifoglio and select Maserati rear rotors• Two-piece floating rotor design: cast-iron ring + 6061-T6 aluminum hat• Curved-vane internal structure for superior heat dissipation• Floating mount with cadmium-plated steel drive pins and anti-noise spring washers• Class 12.9 fasteners with hardened washers for maximum strength• Reusable aluminum hats – only replace iron rings when worn• Reduces unsprung weight for better handling and suspension response• Sold/priced per pair Vehicle Fitment • Alfa Romeo Giulia Quadrifoglio – Rear• Alfa Romeo Stelvio Quadrifoglio – Rear• Maserati Ghibli / Levante / Quattroporte (select trims) – Rear• Compatible with OEM calipers and ABS• Direct bolt-on installation with no modifications Girodisc A2-224 Rear Rotors – Alfa Romeo Quadrifoglio / Maserati FAQs Do these rotors fit the stock calipers? Yes. The Girodisc A2-224 rear rotors bolt directly to the OEM calipers without modification, maintaining proper brake bias and system balance. What benefits do two-piece rotors offer? They significantly reduce unsprung weight, improve cooling, and allow the rotor to expand under heat without warping or coning, resulting in consistent braking and longer life. Can I reuse the hats? Yes. When the iron rings wear out, simply replace the rings while reusing the aluminum hats and hardware for a cost-effective rebuild. Are replacement rings available? Absolutely. Girodisc offers replacement iron rings that fit perfectly onto your existing aluminum hats. Do these rotors make noise? No. The anti-noise spring washers eliminate rattles when cold while preserving full float during heat cycles. Are these rotors lighter than OEM? Yes. The aluminum hat reduces rotational mass and unsprung weight, improving responsiveness and handling. Experience superior braking performance with the Girodisc A2-224 2-Piece Rear Brake Rotors—precision-engineered for Alfa Romeo and Maserati enthusiasts who demand the perfect balance of comfort, control, and performance.
A1-196 Girodisc Audi C6 RS6 Front Rotors
A1-196 Girodisc Audi C6 RS6 Front Rotors $1,954.00
Audi C6 RS6 Front Rotors Enhance your Audi RS6’s stopping power with Girodisc’s high-performance 2-piece front rotors. Designed as a direct replacement for the OE discs, these rotors reduce unsprung weight and improve thermal performance while preserving your factory brake balance and ABS tuning. Ideal for aggressive street driving and high-speed track sessions, they provide consistent, fade-free braking when it matters most. Built for Speed and Stability Each Girodisc rotor is precision-engineered in the USA from the highest-grade materials. The 6061-T6 aluminum hat is anodized for corrosion resistance, while the proprietary iron rings feature curved internal vanes that act as centrifugal pumps, forcing cooling air through the disc. The floating mount system allows the ring to expand evenly under heat, eliminating warping and ensuring smooth operation. Vehicle Fitment Audi RS6 (C6, 2008–2011) Features Direct OEM Fit: Installs using factory calipers and hubs—no modifications needed. Lightweight 2-Piece Design: Reduces mass for sharper suspension response and better handling. Curved Vane Venting: Improves airflow for greater cooling and fade resistance under repeated braking. Floating Mount Hardware: Twelve high-strength drive pins with anti-noise washers allow smooth, silent float. Replaceable Rotor Rings: Reuse the aluminum hats—replace only the iron rings when worn. Made in the USA: Fully cast, machined, and assembled domestically by Girodisc. FAQs – Audi C6 RS6 Front Rotors Will these fit factory calipers? Yes, they’re a direct bolt-on replacement for OEM rotors using the stock calipers. Do they handle track conditions? Absolutely—they’re engineered for sustained high temperatures and heavy braking cycles. How much lighter are they than stock? The two-piece design saves several pounds per corner, reducing unsprung weight and improving handling. Are they noisy? No, Girodisc’s anti-noise spring washers ensure quiet operation under all conditions. Upgrade your RS6’s braking system with Girodisc’s precision floating rotors—engineered for cooler temperatures, lighter weight, and consistent performance lap after lap.
A1-019A Girodisc Porsche 996.1 GT3 Front Rotors, incl. spacers & bolts
A1-019A Girodisc Porsche 996.1 GT3 Front Rotors, incl. spacers & bolts $1,954.00
Porsche 996.1 GT3 Front Rotors, incl. spacers & bolts The Girodisc system is a direct replacement for the OE disc on all 996 GT2 and GT3 models. No modifications are necessary—the rotors bolt directly to the car and work seamlessly with the factory calipers. By upgrading your brakes with lightweight, high-performance Girodisc rotors instead of a big brake kit, you maintain factory brake bias and ABS functionality while improving cooling, pedal feel, and overall braking performance. Engineered for Track and Street Performance Weighing approximately 21.0 lbs versus 25.6 lbs for the OEM units, these Girodisc rotors significantly reduce both unsprung and rotational mass. That means quicker suspension response, improved acceleration, and sharper handling—all without sacrificing durability or stopping power. Designed and machined entirely in the USA, each rotor set delivers precision fitment and superior balance for both daily driving and competitive motorsport use. Vehicle Fitment Porsche 996.1 GT3 (1999–2001) Porsche 996 GT2 (2002–2005) Features Direct OEM Replacement: Installs using factory hardware—no modifications required. Lightweight Construction: Approximately 4.6 lbs lighter per rotor compared to OEM, improving suspension response and reducing rotational mass. Curved Vane Design: Acts as a centrifugal pump to draw cooling air through the disc for improved heat dissipation. Floating Mount System: Ten high-strength alloy steel drive pins maintain axial and radial float, secured with class 12.9 cap screws and anti-noise spring washers for silent operation. Made in the USA: Precision-machined and assembled at Girodisc’s facility from fully domestic materials. FAQs – Porsche 996.1 GT3 Front Rotors Do these rotors require special calipers? No, they’re designed to fit perfectly with your factory Porsche calipers and hardware. Are spacers and bolts included? Yes, all required spacers and hardware are included with each set. Can these rotors be used on track? Absolutely. Girodisc rotors are designed for both track and street use, offering excellent heat management and reduced fade. Are the rotors sold individually or as a pair? They’re sold and priced per pair. Step up your braking performance with Girodisc lightweight, race-proven rotors for your Porsche 996.1 GT3. Designed for serious drivers who demand the perfect balance of street comfort and track durability.
A1-032A Girodisc Porsche 996, 997 Front Rotors (Includes Spacers & Bolts)
A1-032A Girodisc Porsche 996, 997 Front Rotors (Includes Spacers & Bolts) $1,954.00
A1-032A Girodisc Porsche 996, 997 Front Rotors (Includes Spacers & Bolts) Girodisc 2‑piece front rotors for Porsche 996 and 997, supplied with caliper spacers and hardware. Floating construction reduces unsprung mass and maintains OEM brake balance. Vehicle Fitment Porsche 996 – Front Porsche 997 – Front Design & Cooling Proprietary high‑carbon iron rings with curved vanes for airflow and heat control. Reusable anodized aluminum hats and spring‑preloaded floating hardware provide quiet operation and consistent clamp load. Features Includes spacers & bolts 2‑piece floating construction Reusable hats; ring‑only service Sold/priced per pair
A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors
A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors $1,954.00
A1-282 Girodisc 380mm Front Rotors Price: $810.00 These Girodisc A1-282 2-piece front rotors are a direct bolt-on for the G87 M2, G80/G81 M3, and G82/G83 M4 without carbon ceramic brakes. Fully floating construction reduces unsprung/rotational mass while improving cooling, and they retain the factory calipers, ABS logic, and brake bias. Vehicle Fitment BMW G87 M2 (non-CCB) – Front BMW G80/G81 M3 (non-CCB) – Front BMW G82/G83 M4 (non-CCB) – Front High-Carbon Rings, 72 Curved Vanes The rotor rings are machined from high-carbon iron to Girodisc specifications. 72 curved vanes act as a centrifugal pump, drawing air through the hub for efficient heat rejection during repeated hard stops. The 2-piece design allows you to reuse the aluminum hats and refresh with D1-282 rings later. Features Direct OE replacement for 380 mm front rotors (non-CCB) 2-piece floating design reduces unsprung weight High-carbon iron rings; reusable 6061-T6 aluminum hats 72 curved vanes for strong airflow and cooling Assembled with cadmium-plated pins, spring clips, Belleville washers Manufactured and assembled in Bellingham, WA Sold/priced per pair A1-282 FAQs Minimum service thickness? Replace when rings reach 34 mm or sooner if a crack reaches the edge. Do I need new calipers or brackets? No — bolts to factory hubs and works with OE calipers. Which replacement rings match? D1-282 (380×34) front replacement rings. Pad compatibility? Works with OE-shape pads and performance compounds; bed per pad manufacturer. Related Products D1-282 Girodisc BMW G8X 380mm Front Replacement Rings A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings
A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors
A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors $1,954.00
Girodisc BMW G8X M2, M3, M4 Rear Rotors Girodisc A2-282 2-piece rear rotors are a direct bolt-on for G87 M2, G80/G81 M3, and G82/G83 M4 without carbon ceramic brakes. Floating construction reduces unsprung/rotational mass and improves heat management while preserving OE parking brake and ABS. Vehicle Fitment BMW G87 M2 (non-CCB) – Rear BMW G80/G81 M3 (non-CCB) – Rear BMW G82/G83 M4 (non-CCB) – Rear Curved-Vane Cooling, Street-Friendly Float High-carbon rings with 48 curved vanes act as a centrifugal pump to pull air through the disc. Reusable 6061-T6 hats and spring-preloaded hardware control thermal growth and minimize rattle. Features Direct OE replacement for 370 mm rear rotors (non-CCB) 2-piece floating design reduces unsprung weight High-carbon iron rings; reusable aluminum hats 48 curved vanes for effective cooling Cadmium-plated high-strength drive pins; Belleville washers Manufactured and assembled in Bellingham, WA Sold/priced per pair Girodisc A2-282 FAQs Minimum service thickness? Replace rear rings at 22 mm or sooner if a crack reaches the edge. Parking brake compatibility? Fully compatible; hat offset maintains OE parking brake operation. Which rings match later? D2-282 rear replacement rings. Any coding or extra parts? No — this is a bolt-on rotor upgrade with OE calipers. Related Products D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors D1-282 Girodisc BMW G8X 380mm Front Replacement Rings
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