Description
DBA 4000 Series discs are single-piece performance brake discs, cast from DBA’s XG150 high carbon alloyed iron for greater thermal capacity, reduced fade and a longer service life than standard replacement discs. Supplied as a pair (2 discs) for one axle.
The 4000 Series XD is a premium, direct-replacement single-piece performance brake disc designed for drivers seeking a significant braking upgrade above standard OE levels. The XD variant stands out with DBA’s exclusive non-directional cross-drilled and dimpled disc design. This advanced finish provides exceptional structural support compared to traditional drilling, offering enhanced cooling benefits, improved exit points for friction dust and gasses, and an aggressive, sporty aesthetic.
Key Features of the XD Finish
- Cross-Drilled & Dimpled Design: Superior heat dissipation and structural integrity, preventing premature warping and brake fade.
- Kangaroo Paw Ventilation: DBA’s patented vane design ensures up to 20% better heat dissipation than traditional straight-vane discs.
- Thermal Stability Profiling (TSP): Realignment of the iron microstructure through intense heat treatment cycles provides elevated durability.
- High Carbon Alloyed Iron: Ensures peak performance over extended periods under continuous extreme heat.
- Thermographic Heat Paint: Built-in markings change colour at specific temperature thresholds, allowing you to easily monitor braking temperatures.
Note: While the XD finish provides incredible street performance and styling, drilled disc configurations are not recommended for intensive, heavy off-road use or aggressive track day applications.
Specifications
- Diameter (mm): 310
- Thickness (mm): 22
- Minimum Thickness (mm): 20
- Height (mm): 48.5
- Number of Holes: 5
- Inner Diameter (mm): 65
- Disc Vent: Kangaroo Paw
- Stage: Stage 3
- Type / Series: 4000 Series Cross Drilled & Dimpled
Vehicle Fitment
- Audi RS3 8P 2.5 Turbo 335BHP (2011-2013) (Rear) – Brake Caliper: TRW
- Audi RS3 8V 2.5 Turbo 400BHP Hatchback (2017-2020) (Rear)
- Audi RS3 8V 2.5 Turbo 400BHP Sedan (2017-2020) (Rear)
- Audi RS3 8Y 2.5 Turbo 400BHP (2021-2024) (Rear) – PR: 1EE, 1KX
- Audi RS3 8Y 2.5 Turbo 400BHP (2021-2024) (Rear) – Brake Caliper: ATE; for PR: 1KF, 1KD
- Audi RS3 8Y 2.5 Turbo 400BHP (2025-) (Rear) – PR: 1EE, 1KX
- Audi RS3 8Y 2.5 Turbo 400BHP (2025-) (Rear) – Brake Caliper: ATE; for PR: 1KF, 1KD
- Audi RSQ3 8U 2.5 Turbo 310BHP (2013-2014) (Rear) – Brake Caliper: TRW
- Audi RSQ3 8U 2.5 Turbo 340BHP (2015-2018) (Rear) – Brake Caliper: TRW
- Audi RSQ3 8U 2.5 Turbo Performance 367BHP (2016-2018) (Rear) – Brake Caliper: TRW
- Audi RSQ3 F3 2.5 Turbo 400BHP (2019-) (Rear) – Brake Caliper: ATE
- Audi S3 8V 2.0 Turbo 280BHP (2013-2016) (Rear) – Brake Caliper: ATE
- Audi S3 8V 2.0 Turbo 300BHP (2013-2016) (Rear) – Brake Caliper: ATE
- Audi S3 8V 2.0 Turbo 310BHP (2016-2020) (Rear) – Brake Caliper: ATE
- Audi S3 8Y 2.0 Turbo 310BHP (2020-) (Rear) – Brake Caliper: ATE; for PR: 1KJ, 1KY
Plus 20 further applications – please contact us to confirm fitment.
Fits: Audi RS3 8P/RS Q3 8U/S3 8V, Cupra Formentor VZ & More
Part No.: DBA42809WXD (x2)
