The PowerStop Track Day Brake Kit for 2008–2010 BMW 135i is a stage-1 package for weekend track days and HPDE that combines Track Day pads with mill-balanced Autospecialty rotors for reliable stopping using street tires. Engineered for consistent modulation and rising friction as brakes heat, the kit includes mounting hardware and front and rear sensor wires for a straightforward direct-fit upgrade.
Power Stop 08-10 BMW 135i Front & Rear Track Day Brake Kit