The PowerStop Track Day Stage 1 brake kit for 2004–2007 BMW 525i is a complete rotor-and-pad package aimed at weekend track-day enthusiasts using street tires. Track Day pads use a carbon-fiber and metallic compound tuned for consistent pedal feel, high hot friction and resistance to fade; Autospecialty rotors are mill-balanced for smooth operation. The kit includes necessary clips and hardware and is used by Radford Racing School.
Power Stop 04-07 BMW 525i Rear Track Day Brake Kit