DBA 4000 series – XS Brake Discs — Rear Axle for Audi A3 8P / A3 Cabriolet 8P – DBA42807XS
199,10$ ex. VAT
DBA 4000 series – XS Brake Discs — Rear Axle (DBA42807XS) for selected Audi A3 8P and Audi A3 Cabriolet 8P applications. Check exact year, axle and caliper in the Compatible Vehicles tab.
External supplier availability, not stock held by KillerBrakes. Orders remain subject to supplier confirmation.
Last checked: 05 Nov 2026, 02:26 UTC
- Description
- Compatible Vehicles
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DBA — Disc Brakes Australia · Product information
Product overview
Review the product details and confirm exact brake-system compatibility before ordering.
Description
DBA 4000 series - XS Brake Discs — Rear Axle for Audi A3 8P / A3 Cabriolet 8P – DBA42807XS
DBA 4000 series – XS Brake Discs — Rear Axle for Audi A3 8P / A3 Cabriolet 8P – DBA42807XS. Check the Compatible Vehicles tab for verified applications, production years, axle and brake-system requirements.
| Feature Description | Advantage | Benefit |
 Kangaroo Paw – 144 diamond and tear drop pillar ventilation system |
Increased surface area resulting in greater heat dissipation | Minimises brake fade and increases braking effectiveness |
| Increased surface area resulting in greater heat dissipation | Prolongs service life for both pads and rotors. Reduces mechanical damage and associated costs | |
 XG150 High Carbon Alloyed Iron |
An increase in thermal capacity property allows the rotor to handle constant extremes of heat over extended periods of time | Minimises warping and cracking and prolongs the service life of the rotor |
 Paint protection on non-friction areas |
Reduces corrosion | Stops any unsightly rust formation |
| Enhances appearance | Adds value to the product | |
 CBN (Cubic Boron Nitride) machine turned |
Reduced DTV (Disc thickness variation) and parallelism | Less occurrence of brake shudder or brake pedal |
Ideal for enthusiasts looking for an upgrade over stock rotors.
Premium non-directional cross-drilled and slotted design of DBA brake rotors increases the number of outgassing exit points allowing more brake pad friction gasses to escape through.
Brake rotors from DBA Street Series feature with “Kangaroo Paw” – 144 diamond and tear drop pillar ventilation system. Increased surface area results in greater heat dissipation and thus minimises brake fade and increases braking effectiveness of disc brake. CBN (Cubic Boron Nitride) machine turned reduces DTV (Disc thickness variation) and parallelism which brings less occurrence of brake shudder or brake pedal ‘judder’.
While providing a similar performance benefit to the T3 slot, the 4000 XS Series is a popular alternative for open wheel and show cars. We recommend the T3 slot design for more intensive braking applications.
Technical Specifications
| Manufacturer | DBA — Disc Brakes Australia |
|---|---|
| SKU | DBA42807XS |
| Shipping weight | 4,96 kg |
| Brand | DBA |
| Diameter [mm] | 286 |
| Disc Vent | Solid |
| Number of Holes | 5 |
| Inner Diameter [mm] | 65 |
| Minimum Thickness [mm] | 10 |
| Thickness [mm] | 11,7 |
| Height [mm] | 48.4 |
| Pitch Circle [mm] | 112 |
| Stage | Stage 3 |
| Tech Bulletins | Motorsport - Important Info |
| Type / Series | 4000 Series Cross Drilled & Slotted |
VEHICLE APPLICATIONS
Compatible Vehicles
Find your vehicle by manufacturer and model. Expand a model to check its engines, production years, axle and brake-system requirements.
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Fitment depends on your exact brake system. Verify the engine, build year, axle, caliper and listed brake codes before ordering.
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