1. Compatibility: For 135i, 328i, 530i, E82, E70, E90, E92, Z4, X3 (20062013). Replaces part numbers 11617522929, 11617560537, 11617560538, 11617579114. 2. Optimized Engine Performance: This intake manifold valve enhances your vehicle's engine performance by regulating airflow into the intake manifold. By optimizing the airfuel ratio, it improves fuel efficiency, throttle response, and overall engine power, delivering a smoother driving experience. 3. Reliable and Durable: Made from quality materials, this intake manifold valve withstands engine pressure. It ensures consistent performance under various driving conditions, helping maintain the functionality of your vehicle's intake system. 4. Efficient Airflow Control: This intake air valve plays a key role in managing airflow to the engine, ensuring your vehicle operates at peak efficiency. By maintaining proper air supply, it enhances engine efficiency and reduces strain during acceleration.