DBA 42657S 4000 Series T3 Slotted Rear Brake Rotor for Subaru Impreza

DBA's 4000 Series T3 rotors feature our best technology and materials for maximum performance. High carbon & heat treated iron, patented Kangaroo Paw ventilation and Tri-symmetrical slotting makes for the perfect direct replacement rotor

The DBA 42657S 4000 Series T3 slotted rear brake rotor is engineered as a direct replacement and performance upgrade for select Subaru Impreza applications. Designed for vehicles upgraded to STI calipers with a standard 6.7-inch handbrake configuration, this rotor combines high-carbon, heat-treated iron with advanced ventilation and slotting technologies for consistent braking performance.

DBA's patented Kangaroo Paw ventilation system uses directional pillars to improve airflow through the rotor, helping manage heat during demanding street and performance driving. Tri-symmetrical slotting helps refresh the pad surface, evacuate gases and debris, and provide consistent friction throughout the braking cycle. The 4000 Series T3 construction is built to support improved pedal feel, reliable heat management, and stable braking performance compared with a conventional replacement rotor.

Brief Description: High-performance, slotted rear brake rotor designed for select Subaru Impreza models equipped with STI calipers and a standard 6.7-inch handbrake setup.

Key Product Specifications & Technical Data:

• Brand: DBA
• Part Number: 42657S
• Series: 4000 Series T3
• Position: Rear
• Rotor Style: Slotted
• Construction: High-carbon, heat-treated iron
• Ventilation: Patented Kangaroo Paw design
• Vehicle Configuration: STI caliper upgrade with standard 6.7-inch handbrake

What's Included: One DBA 42657S 4000 Series T3 rear slotted brake rotor. Professional installation is recommended, and brake system compatibility should be verified before purchase.

Fitment: Fits select 2004–2009, 2011–2014 Subaru Impreza models, including applications using an STI caliper upgrade and standard 6.7-inch handbrake configuration. Confirm exact year, trim, caliper, and brake configuration before ordering.

Features:

• High-Carbon Iron: Uses high-carbon, heat-treated iron to support durability, thermal stability, and consistent braking performance.
• Kangaroo Paw Ventilation: Patented directional ventilation pillars improve airflow through the rotor and help manage operating temperatures.
• Tri-Symmetrical Slotting: Precision slot design helps clean the pad surface, release gases and debris, and maintain consistent friction.
• Direct Replacement Performance: Designed for select Subaru Impreza applications upgraded to STI calipers with a standard 6.7-inch handbrake.

Fitments:
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI
2013 Subaru Impreza WRX STI
2014 Subaru Impreza WRX STI

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1