You can order the BMS one from N54tuning and select the 5 series hoses. That one includes a nice U-bend hose that helps to locate it in a nice spot for our cars. Then you will need a different mount for it. I found this one referenced in another thread here and just installed it a few weeks ago, worked great!
http://amzn.com/B0002MAFR4
Here is the thread where it is mentioned.
http://e89.zpost.com/forums/showthre...tch+can&page=2