Suitable for BMW N47 N57 Air Filter Intake Pipe with Rubber Ring OEM: Replacing OEM number for reference: 13717810772/13717803842. Please check the suitability before purchasing to avoid purchase errors. Excellent performance: Improve the air intake of automobile turbines, increase power and ensure long-term stability. Material: Made of high quality PA66-GF30, high strength, less damage, wear-resistant and durable. Easy maintenance and long service life Easy to install: easy to install, save time, can directly replace old or damaged models, plug and play, professional installation is recommended. Note: The data are all measured manually, please allow 1-3cm error, due to differences in light and display, there may be some color differences, please refer to the actual item received.