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.
