Originally Posted by GoreX5

Actually my X5 was the lucky one who Bavarian Soundworks installed the free sub system that fits perfectly in the place of the stock sub. I can tell you that the sound is amazing and the fit is flawless. I believe that they will be making this unit available in the next few weeks or days and i can tell you it will be worth the wait. If you have any more questions, i would be happy to answer them.

Tony G.