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The PowerStop Track Day Spec rear brake kit for 2003–2008 BMW Z4 is a stage-2 track-oriented package for advanced track-day drivers and spec racing use. It includes Track Day Spec high-performance pads and Autospecialty rotors engineered for extreme fade resistance, consistent pedal feel and low thermal conductivity when used with race tires. Rotors are mill-balanced for direct fit; the kit is aimed at confident control during demanding track sessions.
Power Stop 03-08 BMW Z4 Rear Track Day SPEC Brake Kit
