Description of K5280 Evolution Drilled Slotted Ceramic
Custom-matched components are engineered to work together for superior braking power on your daily-driver. Z23 Carbon-Fiber ceramic formula ensures dust-free braking performance. Premium rubberized shims provide virtually noise-free braking. Drilled & Slotted performance rotors for maximum cooling. Includes premium stainless steel hardware kit and ceramic brake lubricant for easy installation.
It didn't fit on the 525i from 2007, but the brakes did. My mechanic said he would recommend them but said they were good quality. I'm not sure as I haven't used them. Was disappointed by Revain's vague description of this product.