GiroDisc Racing Brakes & Technologies
D1-012 GiroDisc BMW E46 M3 Front Replacement Rings
$680.00
D1-012 GiroDisc BMW E46 M3 Front Replacement Rings
Get your braking performance back on point with the GiroDisc D1-012 front rotor replacement rings for the BMW E46 M3. Designed to work seamlessly with your existing GiroDisc 2-piece rotor hats, these high-performance rings deliver the same stopping power and heat resistance you expect—without replacing the entire assembly.
Direct Replacement Rotor Rings for Track-Ready Performance
FITMENT: BMW E46 M3 (with GiroDisc A1-012 front rotor kit)
If you’ve already upgraded your E46 M3 with GiroDisc front rotors, these D1-012 rings are all you need to restore full braking capability. They reuse your existing aluminum rotor hats and hardware, making the replacement process quick, cost-effective, and track-ready.
Crafted from GiroDisc’s proprietary high-carbon alloy, these rotor rings offer excellent thermal capacity and crack resistance under extreme braking loads. The curved vane design enhances airflow through the disc, improving cooling and reducing fade during repeated hard stops.
Each set of rings comes pre-drilled and slotted, ready to install using your current GiroDisc floating hardware system. Whether you're daily driving or heading to the next HPDE event, these rings are built to handle the heat.
Sold and priced per pair.
D1-012 Replacement Rotor Ring Features:
Designed for reuse with GiroDisc A1-012 front rotor hats
High-carbon cast iron with proprietary metallurgy
Curved vanes for efficient cooling and fade resistance
Fully slotted to maintain pad bite and reduce glazing
Cost-effective solution for ongoing rotor maintenance
Made in the USA from premium domestic materials
D1-012 Replacement Rotor Ring FAQs:
Will these fit OEM rotors or other brands? No, these are designed specifically to replace worn rings on the GiroDisc A1-012 2-piece rotor system.
Do they come with hats or hardware? No, this listing includes only the replacement rings. Reuse your existing GiroDisc hats and hardware.
Can I install these myself? If you're comfortable with brake system work, yes. Otherwise, professional installation is recommended to ensure proper float and torque specs.
Are these suitable for racing? Absolutely. They’re designed to withstand repeated high-temperature cycles and aggressive braking at the track.
When it’s time to refresh your E46 M3’s braking system, the GiroDisc D1-012 replacement rings are the smart, track-proven choice.
GiroDisc Racing Brakes & Technologies
A1-012 GiroDisc BMW E46 M3 Front Rotors
$1,150.00
A1-012 GiroDisc BMW E46 M3 Front Rotors
Upgrade your BMW E46 M3’s braking system with the GiroDisc A1-012 front rotors—engineered to deliver reduced unsprung weight, improved thermal performance, and track-ready reliability. These 2-piece rotors are a direct replacement for the factory front rotors and bolt up with no modifications required.
Lightweight 2-Piece Design for Maximum Stopping Power
FITMENT: BMW E46 M3 (all years), Front
The GiroDisc A1-012 rotors are crafted for drivers who demand performance and longevity. Each rotor features a high-carbon alloy cast iron ring and a lightweight 6061-T6 aluminum hat. This reduces rotational mass, improves heat dissipation, and helps your braking system perform better on both street and track.
These rotors are fully compatible with OEM calipers and pads, and they install using your factory hardware. When the rings wear down, you can replace them with the D1-012 rings without having to purchase new hats—keeping future maintenance cost-effective and simple.
Each rotor includes GiroDisc’s floating hardware system, which allows for proper thermal expansion and helps eliminate vibration or warping during heavy use. The result is a rotor that stays quiet on the street and reliable under race-day conditions.
Sold and priced per pair.
A1-012 Front Rotor Features:
Direct replacement for OEM front rotors—no modifications needed
2-piece design with high-carbon alloy rings and aluminum hats
Reduces unsprung weight and improves brake responsiveness
Floating mount system ensures optimal heat management
Rebuildable with D1-012 replacement rings
Made in the USA from high-quality domestic materials
A1-012 Front Rotor FAQs:
Will these fit with stock calipers and pads? Yes, they are fully compatible with OEM calipers and pad shapes—just bolt them on and go.
Are these suitable for both street and track use? Absolutely. They’re quiet and street-friendly, but strong enough to handle heavy braking loads at the track.
Do I need to buy special pads or hardware? No, your factory pads and hardware will work perfectly with these rotors.
How do I replace the rings? When the rotor rings reach their wear limit, simply install D1-012 replacement rings and reuse the original hats and hardware.
For drivers who push their E46 M3 to the limit, the GiroDisc A1-012 front rotors deliver race-proven performance with everyday drivability and long-term value.
Brembo N.V.
Brembo Brakes Front 355x32 Six Piston (M3 E46, Z4 E85 E86)
$3,995.00
Brembo Front 355x32 Rotors and Six-Piston Calipers
FITS:
BMW M3 (E46)
BMW Z4 (E85)
BMW Z4 (E86)
For Drivers Who Demand the Utmost From Their Car
Designed and tested specifically for track-day enthusiasts and drivers who demand the utmost performance from their cars, these kits offer superlative performance for both everyday driving and demanding track -ay sessions. Brembo kits consist of cross-drilled or slotted, ventilated two-piece discs and aluminium calipers with six pistons; a complete set of high performance pads; metal-braided hoses; and high quality hardware.
Solutions and Technologies Born on the Race Track
Braking systems consisting of motorsports-derived components offering levels of technology and performance without par on the market today and embodying the purest expression of Brembo's state-of-the-art technology.
The kit consists of aluminium calipers with opposed pistons which, depending on the car model and in increasing order of performance, may be composite, monoblock or even billet monoblock components, combined with cross-drilled or slotted one-piece or composite oversized discs.
Brembo kits combine the best solutions available to offer the perfect solution for the individual characteristics of each model. The heart of the kit consists of aluminium calipers. These are also available as monoblock parts machined from a single billet of cast aluminium, which ensure outstanding rigidity and minimised deformation. The discs supplied in the kit, which may either be floating or one-piece, depending on the specific car model, feature an exclusive venting system that improves cooling capacity and increases resistance to cracking caused by thermal shock by over 40%.Cross-drilled and slotted finishes are designed and executed with meticulous precision. These holes or slots in the braking surface help dissipate heat and eliminate brake dust and gases. A set of high-performance brake pads with specific friction materials for each application, T√úV/DOT homologated metal-braided hoses, an adapter and high-quality fastener hardware complete the kit.
More Braking Torque and Thermal Capacity on Track
Using radial-mounted fixed calipers together with oversized discs gives the system greater braking torque and superior thermal capacity. The result is a braking action that is noticeably more immediate and decisive even in normal road usage, and is extraordinarily powerful and consistent under the repeated loads of track use. Fixed calipers improve the durability and efficiency of the system: the opposed multiple pistons act on the pads with more precision, due to the smaller piston diameter and the reduced pressure exerted on each individual piston, while the greater overall surface area between the pads and pistons results in more uniform friction surface wear. The superlative stiffness of the calipers and the metal braided hoses reduce brake fluid absorption. The result is improved, more stable brake pedal pressure, making it possible to modulate braking force more precisely and enhancing pedal feel. Featuring a hat in aluminium alloy, the oversized floating disc system reduces unsprung mass (for improved handling) and thermal stress. The mounting system is engineered to permit a greater degree of both radial and axial float. This characteristic, together with the greater dimensions of the braking rotor surface, improves the dispersion of the heat generated by the repeated, intense thermal stress that the discs are subjected to, for consistent braking performance and pedal feel even after numerous laps on the track.
Eye-Catching and Unique Looks
With a combination of painted calipers (available in red, black or silver) flaunting the Brembo logo, and slotted or cross-drilled discs, the Gran Turismo kit gives an unmistakably sporty, eye-catching look to the car, offering that extra special touch for drivers who want their vehicle to stand out from the crowd.
Catering to the more discerning driver is the GT-R line of kits. These offer even more performance and consist of billet-monoblock calipers, slotted discs in diameters up to 405 mm and special high performance pads.
Brembo N.V.
Brembo Brakes Rear 345x38 GT-R - Four Pistons (M3 E46, Z4 M-Coupe)
$7,695.00
ÄãThe most sophisticated high performance braking system ever manufactured for cars
The GT-R braking systems are designed to meet the needs of aggressive braking whether on the road or the track.GT-R is the most advanced expression of all Brembo's experience in braking system design. The GT-R Kit is comprised of single block billet aluminium calipers with 4 and 6 piston radial attachment, two piece floating discs, pads with different friction material and high performance hardware.
Single block calipers in billet aluminium with racing characteristics: lightweight, rigid and resistant to high temperatures.
The GT-R calipers are made from billet aluminium with radial 4 and 6 piston attachments. They reduce the non suspended weight, improving the dynamics and vehicle performance. They are designed to provide a constant locking strength and the sensation of a stable and reliable pedal. The pistons with stainless steel radiators allow a significant reduction of heat passage during extreme driving, reducing brake wear to a minimum. In order to guarantee protection against corrosion and to provide high quality in the field, the GT-R calipers are nickel plated and have the Brembo logo CNC machined in red embossing.
Two piece floating discs to reduce the suspended weight and dissipate heat quickly.GT-R braking systems include two piece floating discs which reduce the suspended weight and dissipate heat quickly. The floating disc's anti-noise hardware is the direct result of Brembo's experience with brakes designed for Formula 1 competition.The discs are available in sizes of 345 mm and 405 mm, 28 in diameter and 34 mm thick.
Pads provide optimum performance in various driving conditions
The GT-R range offers a series of friction material which is able to meet a wide range of driving types. It offer optimum performance in various driving conditions, both on and off the track. In addition to the High Performance road pads, pads with racing/track friction material are also available. In order to guarantee correct installation without problems, the GT-R kit includes all the necessary hardware elements such as billet brackets and installation adaptors as well as stainless steel Goodridge brake pipes.
Brembo N.V.
Brembo Brakes Front 380x32 GT-R - Six Pistons (M3 E46, Z4 M-Coupe)
$8,995.00
ÄãThe most sophisticated high performance braking system ever manufactured for cars
The GT-R braking systems are designed to meet the needs of aggressive braking whether on the road or the track.GT-R is the most advanced expression of all Brembo's experience in braking system design. The GT-R Kit is comprised of single block billet aluminium calipers with 4 and 6 piston radial attachment, two piece floating discs, pads with different friction material and high performance hardware.
Single block calipers in billet aluminium with racing characteristics: lightweight, rigid and resistant to high temperatures.
The GT-R calipers are made from billet aluminium with radial 4 and 6 piston attachments. They reduce the non suspended weight, improving the dynamics and vehicle performance. They are designed to provide a constant locking strength and the sensation of a stable and reliable pedal. The pistons with stainless steel radiators allow a significant reduction of heat passage during extreme driving, reducing brake wear to a minimum. In order to guarantee protection against corrosion and to provide high quality in the field, the GT-R calipers are nickel plated and have the Brembo logo CNC machined in red embossing.
Two piece floating discs to reduce the suspended weight and dissipate heat quickly.GT-R braking systems include two piece floating discs which reduce the suspended weight and dissipate heat quickly. The floating disc's anti-noise hardware is the direct result of Brembo's experience with brakes designed for Formula 1 competition.The discs are available in sizes of 345 mm and 405 mm, 28 in diameter and 34 mm thick.
Pads provide optimum performance in various driving conditions
The GT-R range offers a series of friction material which is able to meet a wide range of driving types. It offer optimum performance in various driving conditions, both on and off the track. In addition to the High Performance road pads, pads with racing/track friction material are also available. In order to guarantee correct installation without problems, the GT-R kit includes all the necessary hardware elements such as billet brackets and installation adaptors as well as stainless steel Goodridge brake pipes.
Brembo N.V.
Brembo Brakes Front 355x32 GT-R - Six Pistons (M3 E46, Z4 M-Coupe)
$8,395.00
ÄãThe most sophisticated high performance braking system ever manufactured for cars
The GT-R braking systems are designed to meet the needs of aggressive braking whether on the road or the track.GT-R is the most advanced expression of all Brembo's experience in braking system design. The GT-R Kit is comprised of single block billet aluminium calipers with 4 and 6 piston radial attachment, two piece floating discs, pads with different friction material and high performance hardware.
Single block calipers in billet aluminium with racing characteristics: lightweight, rigid and resistant to high temperatures.
The GT-R calipers are made from billet aluminium with radial 4 and 6 piston attachments. They reduce the non suspended weight, improving the dynamics and vehicle performance. They are designed to provide a constant locking strength and the sensation of a stable and reliable pedal. The pistons with stainless steel radiators allow a significant reduction of heat passage during extreme driving, reducing brake wear to a minimum. In order to guarantee protection against corrosion and to provide high quality in the field, the GT-R calipers are nickel plated and have the Brembo logo CNC machined in red embossing.
Two piece floating discs to reduce the suspended weight and dissipate heat quickly.GT-R braking systems include two piece floating discs which reduce the suspended weight and dissipate heat quickly. The floating disc's anti-noise hardware is the direct result of Brembo's experience with brakes designed for Formula 1 competition.The discs are available in sizes of 345 mm and 405 mm, 28 in diameter and 34 mm thick.
Pads provide optimum performance in various driving conditions
The GT-R range offers a series of friction material which is able to meet a wide range of driving types. It offer optimum performance in various driving conditions, both on and off the track. In addition to the High Performance road pads, pads with racing/track friction material are also available. In order to guarantee correct installation without problems, the GT-R kit includes all the necessary hardware elements such as billet brackets and installation adaptors as well as stainless steel Goodridge brake pipes.
Brembo N.V.
Brembo Brakes Front 355x32 Rotors + Four Piston (M3 E46, Z4)
$3,795.00
Brembo 355x32 Two-Piece Iron Rotors and Four-Piston Calipers
FITS:
BMW M3 (E46) 2000-2006
BMW Z4 Roadster (E85) 2002-2008
BMW Z4 Coupe (E86) 2006-2008
For Drivers Who Demand the Utmost From Their Car
Designed and tested specifically for track-day enthusiasts and drivers who demand the utmost performance from their cars, these kits offer superlative performance for both everyday driving and demanding track-day sessions. Brembo kits consist of cross-drilled or slotted, ventilated two-piece discs and aluminium calipers with four pistons; a complete set of high performance pads; metal-braided hoses; and high quality hardware.
Solutions and Technologies Born on the Race Track
Braking systems consisting of motorsports-derived components offering levels of technology and performance without par on the market today and embodying the purest expression of Brembo's state-of-the-art technology.
The kit consists of aluminium calipers with opposed pistons which, depending on the car model and in increasing order of performance, may be composite, monoblock or even billet monobloc components, combined with cross-drilled or slotted one-piece or composite oversized discs.
Brembo kits combine the best solutions available to offer the perfect solution for the individual characteristics of each model. The heart of the kit consists of aluminium calipers. These are also available as monoblock parts machined from a single billet of cast aluminium, which ensure outstanding rigidity and minimised deformation. The discs supplied in the kit, which may either be floating or one-piece, depending on the specific car model, feature an exclusive venting system that improves cooling capacity and increases resistance to cracking caused by thermal shock by over 40%.
Cross-drilled and slotted finishes are designed and executed with meticulous precision. These holes or slots in the braking surface help dissipate heat and eliminate brake dust and gases. A set of high-performance brake pads with specific friction materials for each application, T√úV/DOT homologated metal-braided hoses, an adapter and high-quality fastener hardware complete the kit.
More Braking Torque and Thermal Capacity on Track
Using radial-mounted fixed calipers together with oversized discs gives the system greater braking torque and superior thermal capacity. The result is a braking action that is noticeably more immediate and decisive even in normal road usage, and is extraordinarily powerful and consistent under the repeated loads of track use.
Fixed calipers improve the durability and efficiency of the system: the opposed multiple pistons act on the pads with more precision, due to the smaller piston diameter and the reduced pressure exerted on each individual piston, while the greater overall surface area between the pads and pistons results in more uniform friction surface wear. The superlative stiffness of the calipers and the metal braided hoses reduce brake fluid absorption. The result is improved, more stable brake pedal pressure, making it possible to modulate braking force more precisely and enhancing pedal feel.
Featuring a hat in aluminium alloy, the oversized floating disc system reduces unsprung mass (for improved handling) and thermal stress. The mounting system is engineered to permit a greater degree of both radial and axial float.
This characteristic, together with the greater dimensions of the braking rotor surface, improves the dispersion of the heat generated by the repeated, intense thermal stress that the discs are subjected to, for consistent braking performance and pedal feel even after numerous laps on the track.
Eye-Catching and Unique Looks
With a combination of painted calipers (available in red, black or silver) flaunting the Brembo logo, and slotted or cross-drilled discs, the Gran Turismo kit gives an unmistakably sporty, eye-catching look to the car, offering that extra special touch for drivers who want their vehicle to stand out from the crowd.
Catering to the more discerning driver is the GT-R line of kits. These offer even more performance and consist of billet-monoblock calipers, slotted discs in diameters up to 405 mm and special high performance pads.
KIT DETAILS:
Brembo GT-M Systems
Caliper Body: Monobloc Radial Mount
Caliper Colors: Black, Red, or Silver
Number of Pistons: 4
Disc Size and Construction: 355mm x 32mm Cast Iron
Disc Type: Drilled or Slotted
Disc Vane Design: Vented Straight Vane
Disc Material: Cast Iron
Disc to Hat Mounting: Floating H-Bobbin with Anti Rattle Spring
Front or Rear System: FRONT
Goodridge Stainless Steel brake lines
Brembo High-Performance Brake Pads