What is the benefit of the Kangaroo Paw ventilation system?

The Kangaroo Paw ventilation system uses a unique pattern of pillars to increase the rotor's surface area by up to 30% and improve cooling efficiency by 20% compared to traditional straight vane designs. This helps dissipate heat more effectively during braking.

Does this rotor come with hardware?

This product listing is for the brake rotor only. Installation hardware, such as lug nuts or brake pad hardware, is typically sold separately.

What is Thermal Stability Profiling?

Thermal Stability Profiling is a heat treatment process that DBA uses on their rotors. It helps to strengthen the cast iron, making it more resistant to warping and cracking under the high temperatures generated during intense braking.

DBA 01-06 BMW M3 E46 Rear 4000 Series Plain Rotor

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Specifications

Brand: DBA
Part #: DBA42851
UPC: 9316391329714

DBA 01-06 BMW M3 E46 Rear 4000 Series Plain Rotor

Name: DBA 01-06 BMW M3 E46 Rear 4000 Series Plain Rotor
Brand: DBA
Price: 264.51 USD
Availability: InStock

$264.51

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2001-2006 BMW M3. This rear brake rotor from DBA is made with high carbon alloy iron and features Kangaroo Paw ventilation for improved cooling.

Key Features

Fits 2001-2006 BMW M3 and 2000-2003 BMW M5.
Cast from XG-150 high carbon alloyed iron for increased stress and heat handling.
Features DBA's patented Kangaroo Paw ventilation for improved cooling efficiency.
Kangaroo Paw ventilation increases surface area by up to 30% and cooling by 20% over traditional designs.
Smooth, OE-style rotor finish for a factory appearance.
Designed as a direct replacement for your rear brake rotors.

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Fits these vehicles

BMW M3 2001-2006
BMW M5 2000-2003

Product Details

If you're looking to replace the rear brake rotors on your 2001-2006 BMW M3, this 4000 Series HD rotor from DBA is a solid option. It's designed to handle the extra stress and heat that comes with spirited driving, offering a significant upgrade over standard OE parts.

DBA casts these rotors from XG-150 high carbon alloyed iron, a material known for its ability to withstand higher temperatures and pressures without warping. They also undergo a process called Thermal Stability Profiling, which further strengthens the iron to handle repeated heavy braking. What really sets these rotors apart is DBA's patented Kangaroo Paw ventilation system. Instead of traditional straight vanes, this design uses 144 diamond and teardrop-shaped pillars. This unique pattern increases the surface area by up to 30% and improves cooling efficiency by 20% compared to standard straight vane designs, helping to keep your brakes cooler during intense use.

This particular rotor has a smooth, OE-style finish, making it a popular choice for drivers who want the performance benefits of the 4000 Series but prefer a more factory look. It's a direct fit for your M3, meaning it bolts right up without modification.