GiroDisc Racing Brakes & Technologies
A1-308 Girodisc Mercedes 360mm Front Rotors
$1,889.00
A1-308 Girodisc Mercedes 360mm Front Rotors
These Girodisc A1-308 2-piece slotted front rotors are a direct OEM replacement for 360 mm front discs on select Mercedes-AMG models. Bolt-on fit with stock calipers; no modifications required.
Vehicle Fitment
Mercedes-Benz E63 AMG (W212) 2010–2014 – Front (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 AMG applications
2-piece floating rotor reduces unsprung weight vs. OE
Slotted face improves pad refresh and debris evacuation
High-carbon iron rings; reusable 6061‑T6 aluminum hats
Approx. 23.6 lb per rotor vs. ~34.5 lb OE (application dependent)
Manufactured and assembled in Bellingham, WA
A1-308 Girodisc Mercedes 360mm Front Rotors FAQs:
Do these rotors require new calipers or brackets? No. They bolt to the factory hubs and work with OEM calipers and pads on the listed applications.
Are they directional? Yes. Each rotor has directional internal vanes; install left/right as marked to ensure proper airflow.
What pads are recommended? They are compatible with OEM pads and popular street/track compounds (e.g., Ferodo DS1.11, Pagid, Hawk). Bed-in per the pad manufacturer.
How do they compare to OE one-piece discs? Lower rotating mass and better heat rejection reduce fade and can improve response on track.
Related Products
A1-308 Girodisc Mercedes 360mm Front Rotors
A2-148 Girodisc Mercedes 360mm Rear Rotors
D1-308 Girodisc Mercedes 360mm Front Replacement Rings
D2-123 Girodisc Mercedes 360mm Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-308DS Girodisc Mercedes 360mm Front Rotors (Dimpled & Slotted)
$2,028.00
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.
GiroDisc Racing Brakes & Technologies
A1-309 Girodisc Audi with Brembo 18Z Front Rotors
$1,392.00
Girodisc Audi with Brembo 18Z Front Rotors
These Girodisc A1-309 two-piece front rotors are purpose-built for Audi models using the Brembo “18Z” 6-piston caliper (Cayenne/Q7/Touareg sourced). They bolt to the car and work with 18Z calipers while reducing unsprung weight and improving cooling versus one-piece rotors.
Vehicle Fitment
Audi S4 (B5) – Front, with Brembo 18Z caliper conversion
Audi A6 (C5) 2.7T – Front, with Brembo 18Z caliper conversion
Audi Allroad (C5) 2.7T – Front, with Brembo 18Z caliper conversion
Fitment note: Minor clearancing on the bottom of the upright is required on C5 chassis per Girodisc instructions. Will not fit C5 A6 4.2 V8, RS6, or Allroad 4.2 V8.
Lightweight, High-Flow Design
High-carbon iron rings with curved internal vanes act as a centrifugal pump to draw cooling air through the disc. Reusable 6061-T6 aluminum hats and cadmium-plated drive pins control thermal growth while keeping street noise in check.
Features
Direct fit for 18Z caliper swaps on B5 S4 / C5 2.7T (A6, Allroad)
Two-piece floating construction reduces unsprung weight
High-carbon rings, curved vanes for efficient cooling
Reusable aluminum hats; new hardware included
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-309 FAQs
Will these fit C5 4.2 V8 or RS6? No. These are for B5 S4 and C5 2.7T cars only when running 18Z calipers.
Is any modification needed? On C5 chassis, Girodisc specifies minor upright clearancing; a guide/video is provided.
Do I need different brake lines or brackets? No additional lines or brackets are required for standard 18Z swap geometry.
What rings do I use later? Use D1-309 front replacement rings.
Related Products
D1-309 Girodisc Audi with Brembo 18Z Front Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-310 Girodisc Mercedes A45, CLA45, GLA45 Front Rotors
$1,609.00
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
A1-311 Girodisc Audi B9 S4, S5, SQ5 Front Rotors
$1,609.00
A1-311 Girodisc Audi B9 S4, S5, SQ5 Front Rotors
These Girodisc A1-311 two-piece front rotors are a direct, bolt-on replacement for the B9 S4, S5, and SQ5. The fully floating design sheds unsprung weight and improves cooling versus OE one-piece rotors while retaining factory calipers, ABS, and brake bias.
Vehicle Fitment
Audi S4 (B9) – Front
Audi S5 (B9) – Front
Audi SQ5 (B9) – Front
High-Carbon Rings, Curved Vanes
Proprietary high-carbon iron rings use curved internal vanes to draw cooling air through the disc. Reusable 6061-T6 aluminum hats and cadmium-plated drive pins control thermal growth and maintain quiet street manners.
Features
Direct OE replacement; no mods required
Two-piece floating design reduces unsprung weight
High-carbon iron rings with curved vane cooling
Reusable aluminum hats; new hardware included
Manufactured and assembled in Bellingham, WA
A1-311 FAQs
Pad compatibility? Works with OE or performance pad compounds.
Bed-in needed? Yes—perform a standard bedding procedure after install.
Front ring part number? D1-311 front replacement rings.
Related Products
D1-311 Girodisc Audi B9 S4, S5, SQ5 Front Replacement Rings
A2-130 Girodisc Audi B8/B9 Rear Rotors
D2-130 Girodisc Audi 330mm Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-318 Girodisc Cadillac CT4-V Blackwing Front Rotors
$1,889.00
Girodisc Cadillac CT4-V Blackwing Front Rotors
These Girodisc A1-318 2-piece front rotors are a direct bolt-on for the Cadillac CT4-V Blackwing. The fully floating assemblies reduce unsprung weight and improve thermal management while retaining OEM calipers, ABS logic, and brake bias.
Vehicle Fitment
Cadillac CT4-V Blackwing – Front
High-Carbon Rings with Curved Vanes
Proprietary high-carbon iron rings use curved internal vanes to draw cooling air through the disc. Reusable 6061-T6 aluminum hats and cadmium-plated high-strength drive pins control thermal growth and deliver quiet street manners with race-ready float.
A1-318 Girodisc Cadillac CT4-V Blackwing Front Rotors Features
Direct OE replacement; no modifications required
2-piece floating design reduces unsprung/rotational mass
Curved vane internal geometry for strong airflow and cooling
Reusable aluminum hats; hardware engineered for quiet operation
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-318 Girodisc Cadillac CT4-V Blackwing Front Rotors FAQs
Do these change pedal feel or ABS? No — rotor geometry preserves factory brake balance and ABS calibration.
Which replacement rings match the A1-318? Use D1-066 380×34 mm front replacement rings.
Are OEM pads compatible? Yes — works with OEM and performance pad compounds; follow pad manufacturer bedding.
Track suitability? Yes — high-carbon metallurgy and floating hardware are designed for repeated high-heat cycles.
Related Products
D1-066 Girodisc 380×34 Front Replacement Rings
A2-318 Girodisc Cadillac CT4-V Blackwing Rear Rotors
D2-318 Girodisc Cadillac CT4-V Blackwing Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-319 Girodisc Front Brake Rotors | Corvette C8 Z06 w/ OEM Iron Rotors
$2,168.00
A1-319 Girodisc Corvette C8 Z06 Front Brake Rotors
The Girodisc A1-319 2-piece front rotors are a direct replacement for the factory front rotors on the Corvette C8 Z06 equipped with standard iron brakes (non-Z07 package). These fully floating, 2-piece assemblies reduce unsprung weight and rotating mass, improving both braking performance and handling response.
Vehicle Fitment
2023+ Chevrolet Corvette C8 Z06 (without Z07 carbon ceramic brake package)
Direct replacement for OEM front iron rotors
Race-Bred Cooling & Construction
The rotor rings are machined from proprietary high-carbon iron for durability and heat resistance. Seventy-two curved internal vanes act as a centrifugal pump, drawing air through the hub to keep brake temperatures in check during hard use. The 2-piece floating design uses a lightweight 6061-T6 aluminum hat, allowing easy replacement of the rings (D1-147) when needed.
Features
Direct replacement for factory iron front rotors
2-piece floating rotor assemblies reduce unsprung weight
72 curved vane design for superior cooling
High-carbon iron rings with reusable aluminum hats
Manufactured and assembled in Bellingham, WA
Minimum recommended ring thickness: 32 mm
A1-319 Girodisc Corvette C8 Z06 Front Brake Rotors FAQs:
Will these fit cars with the Z07 package? No. These rotors are for Z06 models with standard iron brakes, not the Z07 carbon-ceramic option.
Do these work with OEM calipers? Yes. They bolt directly to the factory hubs and calipers with no modifications.
Do I need special pads? No. These are compatible with OEM and performance street or track pads.
What’s the service life? Replace rings at or below 32 mm thickness or if cracks propagate to the edge under inspection.
Are they directional? Yes. Each rotor is side-specific with directional curved vanes for optimal airflow.
Related Products
A2-319 Girodisc Corvette C8 Z06 Rear Brake Rotors
D1-147 Girodisc Front Replacement Rings
D2-319 Girodisc Corvette C8 Z06 Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-320 Girodisc Front Iron Rotor Conversion | Corvette C8 Z06 & E-Ray
$2,308.00
A1-320 Girodisc Corvette C8 Z06, E-Ray Front Iron Rotor Conversion
These Girodisc A1-320 2-piece front iron rotors are a direct bolt-on conversion for the Corvette C8 Z06 and E-Ray. They reduce unsprung weight and improve thermal performance while retaining street-friendly operation and full compatibility with factory calipers.
Vehicle Fitment
Chevrolet Corvette C8 Z06 (Front)
Chevrolet Corvette C8 E-Ray (Front)
High-Performance Two-Piece Design
High-carbon iron rings are mated to reusable aluminum hats. The 48 curved vane internal design pulls cooling air through the rotor for consistent performance under repeated heavy braking. When the rings wear out, replace them with D1-320 to refresh your setup without buying complete rotors again.
Features
Direct bolt-on conversion for C8 Z06 and E-Ray (front)
2-piece floating rotor design reduces unsprung weight
High-carbon iron rings for superior thermal stability
48 curved vanes for efficient cooling
Reusable aluminum hats with black anodized finish
Manufactured and assembled in Bellingham, WA
A1-320 Girodisc Corvette C8 Z06, E-Ray Front Iron Rotor Conversion FAQs:
Does this kit work with OEM calipers? Yes, it bolts on and works with factory calipers and lines.
Can I replace just the rings later? Yes, use D1-320 398 mm front replacement rings.
Is this suitable for track use? Yes, it is engineered for high heat loads and repeated braking cycles.
Does it change ABS or brake bias? No, rotor dimensions are designed to maintain OEM system behavior.
Related Products
A1-320 Girodisc Corvette C8 Z06, E-Ray Front Iron Rotor Conversion
A2-319 Girodisc Corvette C8 Z06, E-Ray Rear Rotors
D1-320 Girodisc Corvette C8 398mm Front Replacement Rings
D2-319 Girodisc Corvette C8 Z06, E-Ray Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-322 Girodisc BMW G8X M3, M4 Front Iron Rotor Conversion
$2,028.00
A1-322 Girodisc BMW G8X M3, M4 Front Iron Rotor Conversion
Price: $1,450.00
These Girodisc A1-322 2-piece rotors directly replace the 400 mm carbon-ceramic (CCB) front rotors on the BMW G8X M3 & M4. The fully floating design reuses the factory CCB calipers and requires no permanent modifications—just swap rotors and run the factory iron pad shape for the calipers.
Vehicle Fitment
BMW G80/G81 M3 with CCB – Front
BMW G82/G83 M4 with CCB – Front
400 mm Iron, Built to Run Cool
High-carbon iron rings with curved internal vanes pull cooling air through the disc for stable performance under repeated hard stops. Reusable 6061-T6 aluminum hats and cadmium-plated hardware control thermal growth and keep noise down in street use.
Features
Direct CCB-to-iron conversion; no coding or bracket changes
2-piece floating construction reduces unsprung/rotational mass
Curved-vane rings for strong airflow and heat rejection
Reusable aluminum hats; new hardware included
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-322 FAQs
Do I change calipers? No. These rotors are designed to run with the OEM CCB calipers.
Which pads do I use? Use the factory iron pad shape for the G8X CCB calipers (not the carbon-ceramic pads).
Any coding needed? No — critical dimensions match CCB spec, so ABS/DSC calibration remains correct.
Wheel clearance vs. CCB? Rotor envelope matches the 400 mm CCB setup, so wheel clearance is unchanged.
Front replacement ring part number? D1-220 400 mm front rings.
Related Products
D1-220 Girodisc BMW F8X/G8X 400mm Front Replacement Rings
A2-322 Girodisc BMW G8X M3, M4 Rear Iron Rotor Conversion
D2-322 Girodisc BMW G8X Iron Conversion Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-336 Girodisc Audi / Lamborghini Front Iron Conversion
$2,658.00
A1-336 Girodisc Audi / Lamborghini Front Iron Conversion
The Girodisc A1-336 Front Iron Conversion Kit is a direct replacement for the factory carbon-ceramic front rotors on select Audi and Lamborghini models. This two-piece iron rotor system allows you to retain the factory calipers and mounting while reducing long-term maintenance costs and improving thermal management under heavy use.
Vehicle Fitment
Audi RS models equipped with carbon-ceramic 380 mm front rotors
Lamborghini Huracán and related platforms with 380 mm front carbon-ceramic rotors
Direct replacement for OEM carbon-ceramic front rotors (no caliper changes required)
Iron Conversion for Track & Street
This Girodisc iron conversion uses a two-piece floating rotor design with a lightweight aluminum hat and a high-carbon iron friction ring. The result is reduced consumable costs, improved thermal capacity, and easy ring replacement when the rotors are worn.
Features
Direct replacement for factory 380 mm carbon-ceramic front rotors
Two-piece floating iron rotor design with aluminum hats
Improved thermal management and serviceability
High-carbon iron rings with directional curved vanes
Manufactured and assembled in the USA
A1-336 Girodisc Audi / Lamborghini Front Iron Conversion FAQs:
Do these fit OEM calipers? Yes, the A1-336 kit retains the factory calipers and brake geometry.
Is any modification required? No, these are a direct bolt-on replacement for OEM carbon-ceramic rotors.
Why convert to iron? Iron rotors have lower replacement costs and better heat absorption for extended track use compared to carbon-ceramics.
Will this trigger brake system errors? No. These are designed to work with the factory ABS and brake systems without coding.
GiroDisc Racing Brakes & Technologies
A1-355 Girodisc Audi 8Y RS3 Front Iron Conversion
$2,658.00
A1-355 Girodisc Audi 8Y RS3 Front Iron Conversion
These Girodisc A1-355 2-piece front iron rotors are a direct bolt-on conversion for the Audi 8Y RS3. They replace the factory carbon ceramic or one-piece iron rotors with a lightweight, high-performance 2-piece design that reduces unsprung weight and improves thermal performance for both street and track use.
Vehicle Fitment
Audi RS3 8Y (Front)
Lightweight, Serviceable Two-Piece Design
The Girodisc A1-355 system uses high-carbon iron rotor rings mated to aluminum hats for improved heat management and cost-effective service. The 48 curved vane design pulls air through the rotor for excellent cooling under repeated heavy braking, making it ideal for track days and performance driving. When the rings wear out, they can be replaced separately without buying a full rotor assembly again.
Features
Direct bolt-on iron conversion for Audi 8Y RS3
2-piece floating rotor design reduces unsprung weight
High-carbon iron rings for superior thermal stability
48 curved vanes for efficient cooling
Reusable aluminum hats with black anodized finish
Manufactured and assembled in Bellingham, WA
A1-355 Girodisc Audi 8Y RS3 Front Iron Conversion FAQs:
Does this fit the factory calipers? Yes, the kit is a direct bolt-on and works with the OEM calipers.
Is this compatible with the OEM carbon ceramic setup? Yes, this conversion is designed to replace the factory ceramic rotors without additional modifications.
Are these suitable for track use? Absolutely. Girodisc rotors are designed for high heat loads and repeated braking cycles.
GiroDisc Racing Brakes & Technologies
A1-357 Girodisc Nissan Front Rotors
$1,539.00
Girodisc Nissan Skyline GT-R (R32 V-Spec, R33, R34) Front Rotors
These Girodisc 2-piece rotors are a direct replacement for the Nissan R32 V-Spec, R33, and R34 Skyline GT-R models. Fitment note: these are the 324mm front rotors found on R32 V-Spec cars, as well as all R33 and R34 GT-Rs. Designed to reduce unsprung weight and rotating mass, they deliver improved performance on both street and track.
A1-357 Vehicle Fitment
• Nissan Skyline GT-R R32 V-Spec (Front – 324mm)• Nissan Skyline GT-R R33 (All models – Front)• Nissan Skyline GT-R R34 (All models – Front)
Lightweight Performance with Racing Pedigree
The rotor rings are machined from a proprietary high-carbon iron casting formulated to Girodisc’s specifications. This superior metallurgy enhances durability and heat resistance, while the 48 curved vane design acts as a centrifugal pump to draw air through the hub for exceptional cooling under heavy braking. The 2-piece design allows the aluminum hat to be reused with replacement rings (part number D1-357) when needed.
A1-357 Features
• 2-piece floating rotor assemblies reduce unsprung weight• Proprietary high-carbon iron rotor rings for superior performance• 48 curved vanes for maximum cooling efficiency• Reusable 6061-T6 aluminum hat with black anodized finish• High-strength cadmium-plated steel drive pins• Fully manufactured and assembled in Bellingham, WA• Diameter: 324mm | Thickness: 30mm | Weight: 16.5 lbs per rotor• Minimum replacement thickness: 28mm
Girodisc Nissan Skyline GT-R (R32 V-Spec, R33, R34) Front Rotors FAQs:
Will these rotors fit all R32 GT-Rs? These rotors fit R32 V-Spec models only, as well as all R33 and R34 GT-Rs. They do not fit standard R32 GT-R front brakes.
Are these rotors a direct bolt-on? Yes, they are a direct replacement for the factory rotors with no modifications required.
Can the hats be reused when the rings wear out? Yes, the 2-piece design allows you to reuse the aluminum hats and simply replace the rotor rings with part number D1-357.
What is the recommended replacement thickness? Girodisc recommends replacing the rings when they reach 28mm thickness or if cracks extend to the edge of the ring.
Related Products
Girodisc D1-357 Replacement Front Rotor Rings – Nissan Skyline GT-R (R32 V-Spec, R33, R34)
Girodisc A2-357 Rear Rotors – Nissan Skyline GT-R (R32 V-Spec, R33, R34)
Girodisc D2-357 Replacement Rear Rotor Rings – Nissan Skyline GT-R (R32 V-Spec, R33, R34)
GiroDisc Racing Brakes & Technologies
A1-388 Girodisc Lotus Emira Front Rotors
$2,028.00
Girodisc 2-Piece Front Brake Rotors for Lotus Emira
Unlock sharper stopping power and reduced weight on your Lotus with the Girodisc A1-388 2-piece rotor set. Designed as a direct replacement upgrade, these fully floating assemblies shed unsprung mass, improve heat dissipation, and deliver consistent braking performance on the street and at the track.
A1-388 Vehicle fitment
• 2022+ Lotus Emira (front axle).• 2017–2021 Lotus Evora 400 / 410 / 430 and 2020–2021 Evora GT (front axle) — dimensionally matched 370×32 mm front setup and commonly cross-listed by reputable sellers; owners also report pad shape commonality between Emira and Evora 400.
Note: Always verify caliper/hat clearance and rotor dimensions on the specific vehicle before installation.
Lightweight, high-performance rotor engineering
Each rotor ring is precision-machined from a proprietary high-carbon iron casting. The 72 curved vanes act as a centrifugal pump to pull cooling air through the hub during repeated hard stops. With a reusable 6061-T6 aluminum hat and replaceable rings (D1-388), these rotors are engineered for longevity and lower long-term cost.
A1-388 Features
• Direct replacement for Lotus Emira OEM front rotors• 370 mm diameter x 32 mm thickness• Proprietary high-carbon iron rotor rings• 72 curved-vane internal cooling design• 6061-T6 aluminum hats, black anodized• Fully floating with high-strength drive pins, Belleville washers, and spring clips• Manufactured in-house in Bellingham, WA, from domestically sourced materials• Replaceable rings available separately. D1-388• Recommended minimum thickness: 30 mm
Related Products
Girodisc D1-388 Replacement Front Rotor Rings
Girodisc D2-388 Lotus Emira Rear Replacement Rings
Girodisc A2-388 Rear Rotors – Lotus Emira
Lotus Emira Rear Caliper Rebuild Kit
Lotus Emira Front Caliper Rebuild Kit
Service guidance
• Replace rings at 30 mm thickness or if a crack reaches the edge of the ring.• Reuse the Girodisc hats and hardware with D1-388 rings when service is due.
Upgrade your braking system with the Girodisc A1-388 2-piece rotors and experience improved response, reduced fade, and stable performance session after session.
GiroDisc Racing Brakes & Technologies
A2-006 Girodisc Dodge Viper ('03+) Rear Rotors
$1,609.00
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 Racing Brakes & Technologies
A2-007 Girodisc Subaru WRX STI ('04–07) Rear Rotors
$1,329.00
Girodisc Subaru WRX STI ('04–07) Rear Rotors
Upgrade your 2004–2007 Subaru WRX STI with Girodisc lightweight two-piece rear rotors engineered for precision, durability, and improved heat management. These rotors deliver faster response, reduced fade, and sharper braking feel while maintaining factory balance and ABS performance. Perfect for both daily driving and high-performance track use.
Vehicle Fitment
Compatible with:• Subaru WRX STI (2004–2007)• Subaru WRX STI Limited (2007)Direct OEM replacement – bolts directly to factory hubs and calipers. Note: Minor pad modification may be required for proper clearance (see below).
Track-Tested, Street-Ready Braking Performance
The Girodisc system replaces the OEM one-piece rotors with a two-piece floating design to reduce unsprung mass and improve heat dissipation. Each rotor hat is CNC-machined from 6061-T6 aircraft-grade aluminum and hard-anodized for strength and corrosion resistance. The proprietary cast-iron rings are made and machined in the USA, featuring curved directional vanes that draw cooling air through the disc for maximum thermal efficiency. The result is consistent, fade-free braking performance under the most demanding conditions.
Features
• Direct OEM replacement for 2004–2007 Subaru WRX STI rear rotors• Lightweight two-piece floating rotor assembly• CNC-machined 6061-T6 aluminum hats with anodized finish• Proprietary cast-iron friction rings with curved directional vanes• Cadmium-plated drive pins resist corrosion and fatigue• Anti-noise spring washers eliminate rattle and vibration• Retains OEM parking brake compatibility• Approximately 7 lbs lighter per rotor than stock• Fully rebuildable – replace only iron rings when worn• Sold/priced per pair
Installation Note
The OEM pads and some aftermarket brake pads require slight modification to fit the Girodisc hardware layout while maintaining OEM parking brake operation. This involves lightly grinding the backing plate of the pad to match the pad material arc. Girodisc includes instructions, and all pads purchased directly from Girodisc come pre-modified for a plug-and-play fit.
Girodisc A2-007 Rear Rotor FAQs:
Do these rotors fit directly on the 2004–2007 STI? Yes. The A2-007 rotors are designed specifically for the GD-chassis WRX STI and bolt directly to the factory hub and calipers.
Why is pad modification needed? Girodisc’s floating two-piece design changes the hardware arrangement slightly, requiring a small pad clearance adjustment to ensure proper fit and full parking brake functionality.
How much lighter are these than stock rotors? Approximately 7 lbs per corner—11 lbs each compared to roughly 18 lbs stock—reducing unsprung weight and improving handling response.
Are these suitable for aggressive driving or track use? Absolutely. The Girodisc design offers superior heat control, reduced fade, and consistent braking during sustained high-temperature operation.
Experience precise braking control and lasting performance with Girodisc rear rotors for your Subaru WRX STI—engineered for the driver who demands performance without compromise.
GiroDisc Racing Brakes & Technologies
A2-008 Girodisc Mitsubishi Evo 6–9 Rear Rotors
$1,329.00
Girodisc Mitsubishi Evo 6–9 Rear Rotors
Transform the braking response of your Mitsubishi Evolution with Girodisc lightweight two-piece rear rotors. Designed for Evo VI through Evo IX models, these precision-engineered rotors reduce unsprung weight, improve heat management, and deliver sharper pedal feel while maintaining factory brake balance and ABS function.
Vehicle Fitment
Compatible with:• Mitsubishi Lancer Evolution VI (1999–2001)• Mitsubishi Lancer Evolution VII (2001–2003)• Mitsubishi Lancer Evolution VIII (2003–2005)• Mitsubishi Lancer Evolution IX (2006–2007)Direct OEM replacement – bolts to factory hubs and calipers with no major modifications required. Note: Minor pad modification may be required for proper clearance (see below).
Race-Proven Design with Everyday Reliability
The Girodisc system replaces the OEM one-piece rotors with a fully floating two-piece design that improves cooling efficiency and reduces rotational mass. Each rotor hat is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum and hard-anodized for strength and corrosion protection. The proprietary cast-iron rings are poured and machined in-house at Girodisc’s U.S. facility, using a curved vane design to draw air through the disc for superior heat dissipation under high-performance conditions.
Features
• Direct-fit upgrade for Mitsubishi Evo 6, 7, 8, and 9 rear brakes• Lightweight two-piece floating construction• CNC-machined 6061-T6 aluminum hats with hard-anodized finish• Proprietary cast-iron friction rings poured and machined in the USA• Curved vane design promotes airflow and reduces fade• Cadmium-plated drive pins resist corrosion and fatigue• Anti-noise spring washers allow controlled thermal expansion• Retains OEM parking brake functionality• Reduced unsprung and rotational weight (approx. 2.5 lbs lighter per rotor)• Sold/priced per pair
Installation Note
The OEM pads and some aftermarket brake pads require minor modification before installation to accommodate the Girodisc hardware and retain the factory parking brake. This involves lightly grinding the pad backing plate to match the arc of the pad material. Girodisc includes full instructions, and pads purchased directly from Girodisc are pre-modified for a plug-and-play fit.
Girodisc A2-008 Rear Rotor FAQs:
Do these fit directly on Evo 6–9 models? Yes. The Girodisc A2-008 rotors are designed specifically for these generations of the Mitsubishi Evolution and bolt directly to the OEM hub and calipers.
Why do the pads need modification? The Girodisc floating design uses additional hardware that slightly changes the clearance between the caliper and rotor. Grinding the backing plate ensures proper fit while keeping the parking brake fully functional.
How do these compare to OEM rotors? Girodisc rotors weigh less, run cooler, and can be rebuilt by replacing only the iron rings—offering long-term savings and improved braking performance.
Are these suitable for track use? Absolutely. The floating two-piece construction and advanced cooling design make them ideal for aggressive street driving and track events.
Upgrade your Evo’s rear braking system with Girodisc rotors for reduced weight, enhanced thermal control, and race-inspired precision built to handle your most demanding driving.
