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4000 Series disc brake rotors are a direct replacement single piece brake rotor, designed for drivers seeking upgraded performance braking above and beyond standard OE levels.

Cast from high carbon alloyed iron and undergoing Thermal Stability Profiling, DBA’s metallurgy can handle the increased stress and heat generated under intense braking applications, time and time again.

Featuring DBA’s Kangaroo Paw ventilation that implements a series of 144 diamond and teardrop patterned pillars, DBA achieves up to a 30% increase in surface area and 20% improvement in cooling efficiency (as compared to a traditional straight vane design).


XS Gold provides all the benefits of 4000 Series, with a premium non directional cross drilled and slotted design, plus an attractive gold finish on the rotor hub.

The introduction of our unique cross drilled and slotted design increases the number of exit points, allowing more brake pad friction dust and gases to escape through both the cross drilled holes and slots, resulting in better braking performance.

While providing a similar performance benefit to the T 3 slot, the XS Gold is a popular alternative for show cars.

Drilled rotor configurations are not recommended for heavy off-road or track day usage.

XS Gold is denoted by the suffix (XS) in 4000 Series part numbers.

*Price per rotor*

DBA Subaru STi 18-21 Rear XS Gold Drilled & Slotted 4000 Series Rotor

SKU: 43051XS-10
$312.00 Regular Price
$226.00Sale Price
Only 9 left in stock
  • Si deseas el par añade 2 en cantidad.

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