The PowerStop Track Day Spec High-Performance brake kit for 2004–2007 BMW 525i rear applications is a stage 2 kit aimed at experienced track-day enthusiasts and spec racing competitors. It pairs Track Day Spec pads with Autospecialty rotors to provide extreme fade resistance, consistent modulation, and strong hot-range friction for race-focused use. Designed for R-compound or race-tire applications, the kit includes appropriate hardware and pad sensors where required; rotors are mill-balanced for direct fit and reliable track performance.
Power Stop 04-07 BMW 525i Rear Track Day SPEC Brake Kit