This is the Focal ISUB BMW8 8” Under-seat 8 Ohm Subwoofer For BMW Vehicles

Experience powerful and precise bass with the ISUB BMW 8 subwoofer, featuring Focal's Polyglass membrane and a neodymium motor for high performance. The integrated interlocking mechanism ensures seamless integration into the original slots, providing an easy installation. With an 8-ohm impedance, this subwoofer is compatible with vehicles equipped with an audio option. It effortlessly blends in with other dedicated BMW/MINI kits, enhancing the in-car listening experience.