Recaro
Recaro Profi SPG XL Racing Seat
from $1,855.00
Recaro Profi SPG XL Racing Seat
All race drivers want to win. That’s the goal. And winning starts with how you fit in the car and relate ergonomically to its controls. The Recaro Profi SPG XL racing seat provides optimized body support during high g-force events, keeping you firmly in the right place to do your job. With more generous proportions than the standard Profi SPG, the Recaro Profi SPG XL also gives larger and taller drivers exceptional long term comfort. It is this combination of comfort and support that gives you a competitive edge in driving performance.
The Profi SPG XL’s ergonomic S-shaped fiberglass shell fits the natural curve of your spine, providing “built-in” structured lumbar support that protects against spinal compression in high-impact accidents.
Ideal for off-road and rally use, the shell of the Recaro Profi SPG XL with glass fiber reinforced polymer has been proven many times over and offer superb lateral hold on the race track as well as off-road. Also available in a standard version.
Uses these Recaro side mounts.
Recaro Profi SPG XL Racing Seat Details
Manufacturer: Recaro
Manufacturer part no.: 070.86.UU11-01
Homologation: FIA 8855-1999 certified and crash tested
Proprietary ergonomics: Recaro S-shaped shell with “built-in” lumbar support
Shell: high-integrity fiberglass comfort shell
Upholstery: flame-retardant velour
Aggressive thigh and torso bolstering
Lumbar cushions
High quality, durable shock-absorbing foam
Recaro friction grip at shoulders
Screw-mounted panels at belt slots
Suitable for 4, 5, or 6-point harnesses
Recaro Profi SPG XL Racing Seat Dimensions
GiroDisc Racing Brakes & Technologies
A1-271 Girodisc Chevrolet Camaro SS 1LE (6th Gen) Front Rotors
$1,790.00
A1-271 Girodisc Chevrolet Camaro SS 1LE (6th Gen) Front Rotors
These Girodisc 2-piece front rotors are a direct replacement for the factory Camaro SS 1LE (6th Gen) brake package and also work on base cars equipped with the Chevrolet Performance brake kit. The floating design reduces unsprung and rotational mass while retaining OEM calipers, ABS, and brake bias.
Vehicle Fitment
Chevrolet Camaro SS 1LE (6th Gen) – Front
Chevrolet Camaro (6th Gen) with Chevrolet Performance front brake kit – Front
Design & Cooling
The central hat is CNC machined from U.S.-sourced 6061-T6 aluminum and anodized for durability. Rings are poured and machined in the USA from proprietary high‑carbon iron and use curved vanes to pull cooling air through the disc during hard use.
Features
Direct OE replacement; no permanent modifications required
2‑piece floating construction reduces unsprung & rotational mass
High‑strength, cadmium‑plated steel drive pins with spring hardware
Reusable aluminum hats; ring‑only service when worn
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-284 Girodisc Acura TLX Type S Front Rotors
$1,790.00
A1-284 Girodisc Acura TLX Type S Front Rotors
These Girodisc A1-284 2-piece front rotors are a direct replacement for the 2021+ Acura TLX Type S. At ~21.85 lb per rotor (vs ~25.8 lb stock), the floating assemblies reduce unsprung and rotating mass while retaining OEM calipers and ABS.
Vehicle Fitment
Acura TLX Type S (2021+) – Front
High-Carbon Rings & 48‑Vane Cooling
Rings are machined from proprietary high‑carbon iron and use 48 curved vanes to pull air through the hub for effective cooling. Reusable aluminum hats accept D1‑284 rings at service time.
Features
Direct OE replacement; no modifications required
2‑piece floating design reduces unsprung & rotational mass
6061‑T6 anodized hats; cadmium‑plated hardware
Manufactured and assembled in Bellingham, WA
Minimum ring thickness: 28 mm
Sold/priced per pair
Sparco
Sparco ULTRA Racing Seat
$1,760.00
Sparco ULTRA Racing Seat
The Sparco ULTRA is the lightest FIA 8859-1999 seat in Sparco’s lineup, weighing just 11.4 lb. Constructed with Sparco’s patented QRT Ultra-Light Technology, this seat eliminates traditional covers and padding for maximum weight savings, direct chassis feedback, and a lower seating position. Despite its minimalist design, the contoured shell provides natural lumbar support and excellent comfort for standard to large drivers.
Its narrow footprint allows fitment in compact cockpits without sacrificing driver space. FIA 8855-1999 approved for competition use.
What Is QRT?
Developed in Sparco’s OEM Composite Laboratory in Italy, QRT (Quick Resin Tech) is a patented process based on aerospace technology that produces fiberglass shells up to 30% lighter than traditional methods — delivering near carbon-fiber weight at a more accessible cost.
Key Features
Ultralight fiberglass composite shell (11.4 lb total)
QRT technology for high strength-to-weight ratio
Minimalist shell design with built-in lumbar contour
Low seating position for optimal chassis feedback
Fits narrow cockpits; ideal for compact race cars
FIA 8855-1999 approved
Sizing
Medium / Large (fits up to 36" waist)
Dimensions
Recaro
Recaro Expert Seat (S/M)
from $1,711.00
Recaro Expert S and Expert M Seat
The Seat Customization Specialists!
If flexibility is at the top of your list, look no further than the Recaro Expert seat! The modular design of the Recaro Expert adapts to different body sizes. It’s available with "S" and/or "M" seat cushions that differ in the length of the seating surface as well as the height and contours of the side bolsters.
Shorter drivers will find that the short seat cushion and flat side bolsters in the "S" version make getting in and out a breeze. While average-height drivers will appreciate the added support of the "M" seat cushion. Adjustable backrest side bolsters come as standard, rounding off the Recaro Expert's perfect body support. Feel your driving performance soar!
Look Great . . . Feel Great!
In comfort and performance, Recaro Expert seats are a giant leap ahead of standard automotive seats. And no other manufacturer can rival the quality and handmade craftsmanship of real Recaro seats. Best of all, the Expert seats -- like all Recaro seats -- have their proprietary and world-renowned ergonomic technology built in. The result is seats in your car that look great, feel great, are kind to your body, and leave you feeling refreshed after a long drive.
The Recaro Expert seat can be upholstered either in Recaro's proprietary Nardo fabric, premium Ambla vinyl, or supple Italian leather. The Expert M also features an exclusive black leather / Pepita fabric upholstery option that draws inspiration from classic Porsches!
Recaro Expert SEAT Features and Attributes
Recaro proprietary ergonomics: S-shaped backrest designed to align the spinal column in its most natural and healthy position
Recaro’s proprietary integrated lumbar support technology provides superior comfort and support
Independently adjustable back bolsters can be set to perfectly cradle your body and hold it in the correct seating position for high-performance driving
The seat cushion’s thigh bolsters give support for spirited driving without hindering easy vehicle entry
Backrest is easily adjustable with a manual dial for millimeter precision
Seat-back tilt-forward release and recline adjustment on both sides – same seat works for driver and front passenger sides
The headrest can be adjusted to comfortably support your head and neck – up, down, and forward tilting
RECARO EXPERT SEAT SPECIFICATIONS
Weight: Approximately 16 kg / 35.3 lbs.
Max Height: 82.0 cm / 32.3 in.
Materials: High-quality glass fiber-reinforced plastic, with a side of comfort.
Dimensions: Check the product photos, because size does matter.
Made in Germany: Precision engineering at its finest.
RECARO EXPERT SEAT FAQs
Q: Will it fit in my car?
A: With its slim, ergonomic design, it's likely this seat was made for your car. But let's chat specifics to be sure.
Q: Is it comfortable for daily driving?
A: Comfort and performance are the hallmarks of the Recaro Expert. A more relaxed Recaro sport seat with everyday comfort and performance very much a priority.
Q: Can I install it myself?
A: If you can handle a wrench, you can handle this. But when in doubt, professional installation is never a bad idea.
Recaro
Recaro Profi SPG Racing Seat
from $1,711.00
Recaro Profi SPG Racing Seat
All race drivers want to win. That’s the goal. And winning starts with how you fit in the car and relate ergonomically to its controls. The Recaro Profi SPG racing seat provides optimized body support during high g-force events, keeping you firmly in the right place to do your job. The Recaro Profi SPG also gives you great long term comfort, and it is this combination of comfort and support that gives you a competitive edge in driving performance.
The Recaro Profi SPG’s ergonomic S-shaped fiberglass shell fits the natural curve of your spine, providing “built-in” structured lumbar support that protects against spinal compression in high-impact accidents.
Ideal for off-road and rally use, the shell of the Recaro Profi SPG with glass fiber reinforced polymer has been proven many times over and offer superb lateral hold on the race track as well as off-road. Also available in XL version.
Uses these Recaro side mounts.
Recaro Profi SPG Racing Seat Details
Manufacturer: Recaro
Homologation: FIA 8855-1999 certified and crash tested
Proprietary ergonomics: S-shaped shell with “built-in” lumbar support
Shell: Recaro high-integrity fiberglass
Upholstery: flame-retardant material
Aggressive thigh and torso bolstering
Lumbar cushions
Premium, durable shock-absorbing foam throughout
Recaro friction grip at shoulders
Screw-mounted panels at belt slots
Suitable for a 4, 5, or 6-point harness
Recaro Profi SPG Racing Seat Dimensions
GiroDisc Racing Brakes & Technologies
A2-270 Girodisc Dodge Viper TA Rear Rotors
$1,647.00
Girodisc Dodge Viper TA Rear Rotors
The Girodisc A2-270 Rear Rotor Kit is a lightweight, performance-engineered brake upgrade for the Dodge Viper TA. Designed to replace the factory rotors directly with no modifications, these 2-piece, fully floating assemblies deliver improved cooling, reduced unsprung weight, and increased responsiveness under hard braking.
Lightweight 2-Piece Construction
Each Girodisc assembly combines a CNC-machined 6061-T6 aluminum hat with a proprietary high-carbon cast iron rotor ring. The 2-piece floating configuration significantly reduces rotating mass and unsprung weight, resulting in better suspension response, sharper handling, and faster acceleration. These rotors provide superior heat dissipation and a firmer, more consistent brake pedal feel on both street and track.
Race-Proven Floating Mount System
Girodisc’s advanced floating mount system connects the rotor ring and hat using precision-engineered, cadmium-plated steel drive pins. These pins are secured with grade 12.9 cap screws and hardened washers, allowing the rotors to expand and contract under heat while maintaining axial and radial float. Anti-noise spring washers prevent rattle and ensure quiet operation for street driving.
Vehicle Fitment
Dodge Viper TA (Time Attack)
Compatible with OEM calipers and pads
Direct bolt-on installation — no modifications required
Technical Specifications
CMS Number: A2-270
Position: Rear
Design: 2-piece floating rotor
Material: Proprietary cast iron rotor with 6061-T6 aluminum hat
Vane Design: Curved internal vanes for enhanced cooling
Hardware: Cadmium-plated drive pins, class 12.9 screws, anti-noise washers
Rebuildable: Yes — replaceable iron rings, reusable aluminum hats
Sold/Price: Per pair
FAQs for Girodisc A2-270
Are these rotors a direct replacement for my OEM setup? Yes, the Girodisc A2-270 rotors are a direct bolt-on replacement for the factory Viper TA rotors and work perfectly with OEM calipers.
What advantages do Girodisc rotors offer? They provide superior cooling, reduced weight, and improved pedal consistency for both track and street driving.
Can I replace the rings later? Yes, Girodisc rotors are fully rebuildable—simply replace the iron rotor rings when worn and reuse the aluminum hats.
Do these rotors make noise? No. The anti-noise spring washers eliminate rattling while maintaining the benefits of a fully floating rotor system.
Upgrade your Dodge Viper TA with Girodisc A2-270 Rear Rotors to experience track-proven braking performance, reduced weight, and long-term serviceability—all proudly engineered and manufactured in the USA.
GiroDisc Racing Brakes & Technologies
A2-271 Girodisc Chevrolet Camaro SS (6th Gen) Rear Rotors
$1,647.00
Girodisc Chevrolet Camaro SS (6th Gen) Rear Rotors
The Girodisc A2-271 Rear Rotors are a precision-engineered, direct replacement for the OEM discs on the sixth-generation Chevrolet Camaro SS. Designed to enhance braking performance, reduce weight, and improve cooling, these 2-piece floating rotors deliver track-ready reliability and street-friendly refinement—all while retaining factory fitment and ABS function.
Lightweight Construction & Improved Cooling
By upgrading to Girodisc’s two-piece rotor design, you eliminate unnecessary rotational mass. The lightweight 6061-T6 aluminum hat significantly reduces unsprung weight, improving suspension response and acceleration. The cast-iron outer rings are produced from Girodisc’s proprietary high-carbon alloy, featuring curved internal vanes that act as a centrifugal pump to draw cooling air through the rotor—perfect for high-performance driving and track sessions.
Race-Grade Floating Mount System
The rotors utilize a fully floating mount system that connects the rotor ring to the hat via 10 high-strength alloy steel drive pins. Each pin is cadmium-plated for corrosion resistance and secured with class 12.9 cap screws and hardened washers. Girodisc incorporates anti-noise spring washers to allow thermal expansion while maintaining a rattle-free, quiet operation suitable for both street and track use.
Vehicle Fitment
Chevrolet Camaro SS (6th Generation, 2016+)
Compatible with factory rear calipers
No modifications required — direct bolt-on replacement
Technical Specifications
CMS Number: A2-271
Position: Rear
Design: 2-piece floating rotor
Material: High-carbon cast iron ring with 6061-T6 aluminum hat
Vane Design: Curved directional vanes
Hardware: Cadmium-plated steel drive pins, class 12.9 cap screws
Rebuildable: Yes — replace the rotor rings, reuse the hats
Sold/Price: Per pair
FAQs for the Girodisc A2-271
Are these rotors a direct fit? Yes, the Girodisc A2-271 rear rotors are a direct bolt-on replacement using the OEM calipers and hardware—no modifications needed.
Do they improve braking performance? Absolutely. The reduced rotational mass improves throttle response and suspension compliance, while the curved vanes enhance cooling and fade resistance.
Are they noisy? No. The floating hardware design uses anti-noise spring washers to eliminate rattle and vibration during street driving.
Are these rotors rebuildable? Yes. The rotor rings can be replaced independently, allowing cost-effective rebuilds and extended service life.
Upgrade your Chevrolet Camaro SS (6th Gen) with Girodisc’s lightweight, performance-engineered rear rotors for improved stopping power, cooling efficiency, and long-term value.
GiroDisc Racing Brakes & Technologies
A1-191 Girodisc Audi RS3 Sportback (8V) Front Rotors
$1,647.00
Audi RS3 Sportback (8V) Front Rotors
Girodisc 2-piece floating front rotors are a direct replacement for the RS3 Sportback (8V) factory discs—no modifications required. They preserve OEM brake bias and ABS while improving cooling and pedal consistency.
Each rotor weighs ~24.0 lbs versus ~27.4 lbs for stock, cutting unsprung and rotating mass for quicker response and acceleration.
Precision-Engineered Performance
Vehicle Fitment
Audi RS3 Sportback (8V)
Features
Direct OEM fit: Bolts to factory hubs and calipers with zero modifications.
Curved vane ventilation: Directional vanes act as a centrifugal pump to move cooling air through the disc.
Floating mount hardware: Ten high-strength alloy steel drive pins with anti-noise spring washers allow silent thermal float.
Serviceable design: Reuse the aluminum hats and replace only the iron rings when worn.
Made in the USA: Hats machined from 6061-T6; rings poured and finished in-house by Girodisc.
FAQs
Do these fit OEM calipers? Yes. They are designed as a true bolt-on for the RS3 8V front brakes.
Will I notice pedal feel improvements? Reduced mass and better ventilation deliver a firmer, more consistent pedal under repeated stops.
Are they street friendly? Absolutely—quiet operation with anti-noise hardware, yet durable for track days.
Sold individually or as a pair? Sold and priced per pair.
Upgrade your RS3 8V with Girodisc floating rotors for cooler operation, reduced fade, and confidence-inspiring braking on street or circuit.
GiroDisc Racing Brakes & Technologies
A1-270 Girodisc Dodge Viper TA, ACR-X Front Rotors
$1,647.00
Dodge Viper TA, ACR-X Front Rotors
The Girodisc system is a direct replacement for the OE front discs on the Dodge Viper TA and ACR-X. No modifications are necessary—the rotors bolt directly to the car and work seamlessly with factory calipers. By upgrading to these lightweight, high-performance rotors instead of a full big-brake kit, you’ll maintain your OEM brake bias and ABS calibration while dramatically improving braking performance and heat control.
Track-Proven Design, Made in the USA
Each Girodisc rotor is engineered and machined in the United States using premium materials for maximum reliability under the most demanding conditions. The central hat section is CNC-machined from 6061-T6 aircraft-grade aluminum, while the cast-iron rings are poured from Girodisc’s proprietary high-carbon alloy for exceptional durability and thermal stability. With a 48-vane directional cooling design, these rotors act as centrifugal pumps, pulling cool air through the disc to reduce fade and extend pad life.
Vehicle Fitment
Dodge Viper TA (Time Attack)
Dodge Viper ACR-X
Dodge Viper SRT (with factory Brembo calipers)
Features
Direct OEM Replacement: Fits factory hubs and calipers—no modifications required.
Lightweight Construction: Significantly reduces unsprung and rotational mass for improved handling and responsiveness.
48 Curved Directional Vanes: Provide superior cooling and consistent performance during repeated hard stops.
Floating Mount System: Uses 8–10 high-strength alloy steel drive pins and anti-noise spring washers for silent, precise operation under thermal expansion.
Made in the USA: Fully machined and assembled at Girodisc’s facility from domestically sourced materials.
FAQs – Dodge Viper TA, ACR-X Front Rotors
Do these rotors fit the OEM calipers? Yes, they’re designed to work perfectly with the stock Brembo calipers on the Viper TA and ACR-X models.
Can these be used for track racing? Absolutely. Girodisc rotors are built to withstand repeated track abuse while remaining quiet and reliable for street use.
Do they come with hardware? All necessary hardware is included, and installation is a direct bolt-on.
Are they sold individually or in pairs? Each listing is sold and priced per pair.
Upgrade your Dodge Viper’s braking system with Girodisc lightweight, floating two-piece rotors. Experience reduced fade, quicker cooling, and precise brake modulation for every lap and every stop.
GiroDisc Racing Brakes & Technologies
A1-012 Girodisc BMW E46 M3 Front Rotors (345×28 mm, ZCP/CSL)
$1,647.00
A1-012 Girodisc BMW E46 M3 Front Rotors (345×28 mm, ZCP/CSL)
These Girodisc A1-012 2-piece rotors are a direct replacement for the BMW E46 M3 with the 345 mm front brake setup found on Competition Package (ZCP) and CSL models. At just ~17.5 lb per rotor, the fully floating design helps shed unsprung and rotating mass while retaining OEM calipers, ABS, and brake bias.
Vehicle Fitment
BMW E46 M3 (ZCP/Competition Package) – Front
BMW E46 M3 CSL – Front
High-Carbon Rings & Curved-Vane Cooling
The rings are machined from a proprietary high-carbon iron casting for durability and heat capacity. 48 curved internal vanes act as a centrifugal pump, drawing cooling air through the hub to stabilize temps under hard use. The 2-piece design allows reuse of the aluminum hat with D1-012 rings when needed.
Dimensions
Diameter: 345 mm
Thickness: 28 mm
Weight: ~17.5 lb per rotor assembly
Features
Direct OEM replacement for ZCP/CSL 345 mm front rotors
2-piece floating construction reduces unsprung & rotational mass
Reusable 6061-T6 aluminum hats; black anodized finish
High-strength cadmium-plated hardware, spring clips & Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-012 FAQs
Does this fit non-ZCP E46 M3? It’s designed for the 345 mm ZCP/CSL front package. Non-ZCP cars typically use smaller front rotors.
Minimum service thickness? Replace rings at 26 mm, or sooner if a crack reaches the outer edge.
Which replacement rings? Use D1-012 front rings (pair with hardware) for Girodisc hats.
Aftermarket calipers? The geometry is compatible with common swaps (e.g., Brembo 996 and Megane RS kits) as well as the OEM sliding calipers used on ZCP/CSL.
GiroDisc Racing Brakes & Technologies
A1-310 Girodisc Mercedes A45, CLA45, GLA45 Front Rotors
$1,647.00
A1-310 Girodisc Mercedes A45, CLA45, GLA45 Front Rotors
The Girodisc A1-310 two-piece front rotors are a direct, bolt-on upgrade for the AMG 45 platform. They retain factory calipers and brake bias while reducing unsprung weight and improving heat management compared to one-piece OE discs.
Vehicle Fitment
Mercedes-AMG A45 (W176) – Front
Mercedes-AMG CLA45 (C117) – Front
Mercedes-AMG GLA45 (X156) – Front
Lightweight, High-Flow Design
The curved-vane iron rings act as a centrifugal pump to pull air through the disc, while the reusable 6061-T6 aluminum hats and floating hardware maintain quiet street manners and race-ready thermal expansion control.
Features
Direct OE replacement; no modifications required
2-piece floating construction with reusable aluminum hats
High-carbon iron rings with curved internal vanes for cooling
Cadmium-plated high-strength drive pins with Belleville springs
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-310 FAQs
Will these work with factory pads? Yes — they’re compatible with OE and performance pad compounds.
Any noise from the floating hardware? Spring washers pre-load the pins to prevent rattles during street use.
Do I need new lines or brackets? No, these mount to stock hubs and calipers with OE hardware.
What rings replace these later? Use D1-310 front replacement rings.
Related Products
A2-044 Girodisc Mercedes A45, CLA45, GLA45 Rear Rotors
D1-310 Girodisc Mercedes A45, CLA45, GLA45 Front Replacement Rings
D2-044 Girodisc Mercedes A45, CLA45, GLA45 Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A2-307 Girodisc Toyota GR Supra, BMW Rear Brake Rotors
$1,647.00
Girodisc Toyota , BMW Rear Brake Rotors
These Girodisc A2-307 2-piece rear rotors directly replace the 345 mm rear rotor package on Toyota GR Supra 3.0 and select BMW G-chassis models. Floating construction reduces rotating mass and improves cooling while maintaining OE parking brake and ABS.
Vehicle Fitment
Toyota GR Supra 3.0 (A90/A91) – Rear
BMW G20/G21 M340i – Rear
BMW G22/G23 M440i – Rear
BMW G20/G22 with optional M Sport brakes – Rear
BMW G01 X3 M40i & G02 X4 M40i – Rear
BMW G29 Z4 M40i – Rear
Applies to vehicles equipped with the 345 mm rear rotor package.
Curved-Vane Cooling
High-carbon iron rings with 48 curved vanes act as a centrifugal pump to move air through the disc. Reusable hats and spring-preloaded floating hardware allow thermal expansion without rattle for street use.
Girodisc A2-307 Features
Direct OE replacement; no modifications required
2-piece floating construction reduces unsprung/rotational mass
High-carbon iron rings; reusable 6061-T6 aluminum hats
48-vane internal geometry for airflow and cooling
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
FAQs for the Girodisc A2-307
Minimum service thickness? Replace rear rings at 22 mm or sooner if a crack reaches the edge.
Parking brake and shields? Retained — dimensions keep OE parking brake function and shield clearances.
Related Products
D2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Replacement Rings
A1-307 Girodisc Toyota GR Supra, BMW 348mm Front Rotors
D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-307 Girodisc 2 Pc Front Brake Rotors (348mm)
$1,647.00
A1-307 Girodisc Toyota GR Supra, BMW 348mm Front Rotors
Price: $1,150.00
These Girodisc A1-307 2-piece front rotors are a direct bolt-on for the Toyota GR Supra 3.0 and BMW G-chassis models equipped with a 348 mm front rotor. Floating construction trims unsprung/rotational mass while preserving OE caliper/ABS function. Replacement rings: D1-307.
Vehicle Fitment
Toyota GR Supra 3.0 (A90/A91) – Front
BMW G20/G21 M340i – Front
BMW G22/G23 M440i – Front
BMW G20/G22 with optional M Sport brakes – Front
BMW G01 X3 M40i & G02 X4 M40i – Front
BMW G29 Z4 M40i – Front
Above applications reflect the 348 mm front rotor package on G-chassis cars.
High-Carbon Rings, 72 Curved Vanes
Proprietary high-carbon iron rings use 72 curved vanes to pull cooling air through the hub for stable temperatures under repeated hard stops. Reusable 6061-T6 hats and cadmium-plated hardware maintain quiet, street-friendly float.
Features
Direct OE replacement; no modifications required
2-piece floating design reduces unsprung/rotational mass
High-carbon iron rings; reusable aluminum hats
72-vane internal geometry for strong airflow
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-307 FAQs
Minimum service thickness? Replace front rings at 34 mm or sooner if a crack reaches the edge.
Do these require new calipers? No — they bolt to OE hubs and run with factory calipers/ABS.
Which rings fit later? D1-307 front replacement rings.
Related Products
D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings
A2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Rotors
D2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
D1-291 GiroDisc Replacement Rotors (OEM Iron)
$1,618.00
Porsche 408x36mm Front Replacement Rings
Bring your Porsche’s braking system back to peak performance with the Girodisc D1-291 Front Replacement Rings. Designed for applications using 408x36mm Girodisc two-piece rotors, these rings deliver the same unmatched stopping power, thermal stability, and lightweight construction as your original setup—without the cost of new hats.
Each ring is CNC-machined from Girodisc’s proprietary U.S.-poured high-carbon cast iron alloy. The result is exceptional strength, cooling, and longevity for high-performance street and track use. Whether you’re driving your GT4 RS or GT3 RS at full throttle, these replacement rings ensure every lap, corner, and stop feels just as sharp as the first.
Features and Benefits
Direct replacements for Girodisc 408x36mm two-piece front rotors
Includes brand-new hardware—reuse your existing Girodisc aluminum hats
Manufactured from proprietary high-carbon cast iron for maximum heat capacity
48 curved directional vanes for superior airflow and cooling efficiency
Two-piece floating design reduces unsprung mass and improves handling response
Fully machined, balanced, and assembled in the USA
Vehicle Fitment
2022+ Porsche 718 Cayman GT4 RS (982) – with steel brakes
2023+ Porsche 911 GT3 RS (992) – with steel brakes
These replacement rings are designed exclusively for Girodisc aluminum hats and will not fit OEM or other aftermarket hat systems. They are not compatible with PCCB carbon-ceramic brakes.
Why Choose Girodisc
Girodisc brake systems are engineered for uncompromising performance. Each rotor ring is precision-machined, balanced, and tested to deliver consistent brake modulation and fade-free stopping power under extreme conditions. When your original rings reach their wear limit, these replacements let you refresh your braking system with OEM-level precision at a lower cost.
FAQs
Do these include the aluminum hats?No. The D1-291 kit includes only the rotor rings and new hardware. Your existing Girodisc hats are reused.
Can these be used with factory rotors?No. Girodisc replacement rings are specifically designed for Girodisc two-piece rotors and will not fit OEM or other aftermarket assemblies.
Are they directional?Yes. Each ring features curved internal vanes for optimized airflow and must be installed on the correct side for proper cooling performance.
What’s included?Two 408x36mm front rotor rings (left and right) plus a complete hardware kit with new drive pins, bolts, and washers.
Ready to Refresh?
Restore your Porsche’s braking confidence and consistency with Girodisc D1-291 Front Replacement Rings. Engineered for the 718 GT4 RS and 992 GT3 RS, these rings bring factory-level precision with motorsport-grade performance. Order your set today from Competition Motorsport and keep your Porsche braking at its absolute best.
