Try calling or looking at these.
Trinity Autosport : ask for Joe
Acute Performance Product Line |
[email protected] | 626-722-8881
ask for Michael
Try these 2 if they can find for your x5. I bought some stuff for my M5 from there, not sure if they have anything for the x5. But they can order it for you, and for a very good price. To make it easier for you go to e60.net and look around in the forums.