The Focal Inside I-SUB-BMW-2 Under Seat Subwoofer Car Audio Speaker specially designed to fit directly into various BMW models. The kit is completely plug and play requiring no modifications to the factory install locations, simply remove the original factory subwoofer and install the new Focal sub in its place. With I-SUB-BMW-2, the sound is neutral, and the installation is quick thanks to the spacer integrated into the chassis that allows perfect integration into the original location. With its 2 Ohms impedance, it is ideal with your aftermarket amplification. FeaturesQuick installationNo wire to cut, no modification100% compatible with your vehicleSound quality is superior compared to the original oneMounting accessories includedSpecificationsWoofer 8 (200mm)Magnet NeodymiumCone Black PolyglassSurround ButylImpedance 2 OhmsMax.