BMW M3 Brake Rotor (1) - Front - DBA - 4000 Series Plain - `01-`06. A direct-fit front rotor from DBA's 4000 Series HD line designed for E46 M3 owners seeking OE-style appearance with improved thermal performance.

This plain-faced rotor is cast from XG-150 high carbon alloyed iron and finished using DBA's Thermal Stability Profiling (TSP) process for consistent metallurgy under repeated heavy braking. The 4000 Series HD provides a smooth, OEM-style surface while incorporating DBA’s Kangaroo Paw ventilation—144 diamond and teardrop patterned pillars—to increase surface area and improve cooling versus straight vane designs. The result is a reliable, direct-replacement rotor suited for spirited street use and controlled track applications where an OE look is preferred.

Features

• XG-150 high carbon alloyed iron for durability and wear resistance
• Thermal Stability Profiling (TSP) for consistent heat management
• Kangaroo Paw ventilation (144 diamond/teardrop pillars) for up to 30% more surface area and ~20% improved cooling efficiency vs. straight vanes
• 4000 Series HD smooth OE-style finish
• THGP thermo-graphic paint markings, moisture-proof corrosion protection packaging, direct replacement fit

If you have questions or want help confirming fitment for your E46 M3, call us directly — 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services on premises. If you're considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov