So I initially thought about getting the NVX subwoofer system installed in my Model S. As I searched around "Orange County" and "Los Angeles" I couldn't find a shop to install the NVX kit. So I decided to go with Audio Lab in Laguna Hills. They made a custom subwoofer box that is insane and looks great! The subwoofer is a 10" hertz and the sub amp is a Rockford Fosgate R500X1D. The sound is amazing and adds so much to the premium Tesla sound package. Below are some pictures, enjoy!