The Mishimoto 01-06 BMW M3 Performance Aluminum Fan Shroud w/Fan Controller Kit is designed to provide superior cooling for your BMW M3. The kit includes an aluminum fan shroud with a 16 high-flow fan, a fan controller, and all necessary mounting hardware. The aluminum fan shroud is designed to maximize airflow through your radiator and provide maximum cooling efficiency. The fan controller allows you to adjust the fan speed to match your cooling needs. The kit is designed for a direct fit and easy installation and is backed by Mishimoto's lifetime warranty.