Removed from Mini Countryman cooper 2012 1.6 petrol! Unfortunately, the rubber band on one of them is damaged, this is indicated in the photo. And two door side woofers! Everything is in good working order. The XFIRE Audio BMW80W is a 20cm (8-inch) underseat woofer designed specifically for BMW vehicles. Its part number is simply BMW80W, often listed as an upgrade component for BMW audio systems e. In this B&B Audio Concepts article.