Please see our 4 part series for a detailed view of swapping your own E90! https://www.youtube.com/watch?v=O9xO3S8RWGA https://www.youtube.com/watch?v=QhOLdfnM-bQ https://www.youtube.com/watch?v=i5Mi4D_-s-8 https://www.youtube.com/watch?v=RewcyYUAAP8