DBA 4000 Series T3 Rear Slotted Brake Rotor for 2005-2006 Pontiac GTO (DBA42021S)

Fits 2005-2006 Pontiac GTO Base models.

The DBA 4000 Series T3 is a high-performance, direct-replacement rear brake rotor designed for drivers who demand superior thermal management and stopping power. Engineered from high-carbon alloyed iron (XG150) and subjected to thermal stability profiling (TSP), these rotors are built to handle the intense heat cycles of spirited driving and track applications without warping or cracking.

This rotor features DBA’s patented Kangaroo Paw ventilation system, a series of 144 diamond and teardrop-shaped pillars that provide significantly more surface area and structural strength than traditional straight-vane designs. The T3 tri-symmetrical slotting further enhances performance by consistently clearing brake dust and gases while reducing vibration and pedal chatter.

• High Carbon Alloyed Iron: XG150 material increases thermal capacity and durability.
• Kangaroo Paw Ventilation: Patented pillar design improves cooling efficiency and rotor strength.
• T3 Tri-Symmetrical Slots: Dampens harmonics for quieter operation and ensures even pad wear.
• Thermal Stability Profiling (TSP): Heat treatment reduces internal stresses for improved grain structure.
• Direct Replacement: Bolts directly to factory rear mounting points without modification.
• MPN: DBA42021S