Selling a few things out of the car before I sell/trade the car. These are in an E92 my daily driver, this will fit the same in an E90. The subwoofers and amp are matched based on power ratings. Some people just throw anything at anything, these were bought to compliment eachother. They get loud in the trunk, regardless of what most say they will shake apart the car if you want. If you are local I can help with the install and you can have a listen before I pull them out. I will try to get video of them running, but you all know how that comes out. Just a bunch of terrible audio and subwoofers that look like they are warping. Inside the car its a lot of bass!