The Diamond Audio VSP8BMW 200W 2-Ohm Dual BMW Specific 8" Car Audio Subwoofer is a high-quality, non-enclosed, non-powered subwoofer designed specifically for BMW vehicles. With a dual voice coil and 8-inch speaker size, this subwoofer delivers powerful bass with an RMS power of 100W. The BMW-specific design ensures a perfect fit and compatibility with your vehicle, providing an enhanced audio experience for your car. Built by Diamond Audio, a trusted brand in car audio, this subwoofer is a reliable and high-performance addition to your vehicle's audio system.