GiroDisc A2-322 Slotted Rear Iron Rotor Conversion for 2020-2025 BMW M3/M4

Vehicle Fitment

• 2020-2025 BMW M3 (G80) with Carbon Ceramic Brakes
• 2020-2025 BMW M4 (G82) with Carbon Ceramic Brakes
• 2020-2025 BMW M4 Convertible (G83) with Carbon Ceramic Brakes

Features

• Direct replacement for 380mm carbon ceramic rear rotors
• 2-piece floating design reduces unsprung weight
• High-carbon iron rotor rings with curved vane cooling
• Lightweight anodized 6061-T6 aluminum hats
• Reusable hats compatible with D2-322 replacement rings
• Compatible with factory carbon ceramic calipers and pads
• Made in the USA from high-quality domestic materials
• Designed for both street and track use

Specifications

• Diameter: 380mm
• Thickness: 28mm
• Material: High-carbon cast iron rotor rings, 6061-T6 aluminum hats
• Design: 2-piece floating with curved internal vanes
• Weight: Approximately 11 lbs per rotor
• Compatibility: OEM carbon ceramic calipers and pads
• Replacement Rings: D2-322

Included Components

• 2x GiroDisc A2-322 380mm Slotted Rear Iron Rotors

Product Description

The GiroDisc A2-322 380mm slotted rear iron rotors are engineered to enhance the braking performance of your 2020-2025 BMW M3 and M4 models equipped with carbon ceramic brakes. These rotors feature a 2-piece floating design that reduces unsprung weight, improving acceleration and suspension response. The high-carbon alloy rotor rings are equipped with curved internal vanes that act as a centrifugal pump, effectively cooling the rotors under hard use.

Manufactured in the USA, the rotors utilize lightweight anodized 6061-T6 aluminum hats and are fully compatible with factory carbon ceramic calipers and pads, requiring no modifications for installation. The reusable hats can be paired with D2-322 replacement rings when needed, offering cost-effective maintenance. Whether you're engaging in spirited street driving or track sessions, these rotors provide superior heat dissipation and consistent braking performance.