I would stay away from something like this. The pieces in the pic dont look like the best quality. And you don't know about the fitment. According to the auction it fits "6-cylinder" BMWs....but the 330 for example, take a different size intake than the 323.
If you want an intake but dont want to spend alot, look for a member selling a benfer intake. The BenFer has been tested and the materials they use are great. I have one and love it!