The EBC 06-07 BMW 330 E90 3.0L BSD Front Rotors are a set of high-performance rotors designed for BMW 330 E90 3.0L models from 2006 to 2007. These rotors are made from a special alloy that is designed to resist warping and distortion even under heavy braking. The rotors are also designed with a special surface finish that helps to reduce brake noise and vibration. The rotors are also designed to be direct replacements for the original rotors, making installation quick and easy.