DBA DBA4488XS 4000 Series XS Gold Drilled & Slotted Disc Brake Rotor

The DBA DBA4488XS is a 4000 Series XS Gold drilled and slotted disc brake rotor engineered as a direct-fit, single-piece performance upgrade over standard OE rotors. Combining cross-drilled holes with symmetrical slots, this rotor increases the number of exit points for brake pad friction dust and gases, delivering a quieter, more responsive pedal feel and consistent stopping power. The distinctive gold finish on the rotor hub adds a premium aesthetic appeal, making it a popular choice for performance street builds and show vehicles alike.

Cast from XG-150 high carbon alloyed iron, the DBA4488XS undergoes DBA's proprietary Thermal Stability Profiling (TSP) process — a series of controlled heat treatment cycles that realign the iron's microstructure to maximize thermal stability, reduce metal fatigue, and extend rotor service life under intense braking conditions.

Key Features:

• XS Gold Cross-Drilled & Slotted Design: Non-directional pattern increases gas and dust exit points for improved braking consistency and response
• Symmetrical Bi-Directional Pattern: Universal left/right fitment — a single rotor fits either side
• Kangaroo Paw Ventilation: 144 diamond and teardrop-patterned internal pillars deliver up to 30% more surface area and 20% better cooling efficiency versus traditional straight-vane designs
• Thermal Stability Profiling (TSP): Proprietary heat treatment process relieves internal casting stresses for enhanced durability and rotor stability
• High Carbon Alloyed Iron (XG-150): Handles constant and extreme heat over prolonged high-demand braking cycles
• Thermographic Heat Paint (TGHP): Color-changing paint markings on non-friction areas indicate peak temperature thresholds, helping monitor rotor fatigue and guide brake pad selection
• CBN Machine Finish: Cubic Boron Nitride machine-turned friction surface minimizes disc thickness variation, reducing the risk of pad knock and premature wear
• Anti-Rust Coating: Painted non-friction surfaces resist corrosion and enhance appearance
• Center-Split Core Casting: Improves heat transfer and overall thermal efficiency

The 4000 Series XS Gold is best suited for high-performance street driving. Note: drilled rotor configurations are not recommended for heavy off-road or dedicated track day use. For motorsports applications, DBA's T3-slotted variants are recommended instead.