Yes, your 2001 X5 4.4i has a rear air suspension. If you get Eibach front springs, you will lower the front about 1.2" and you can get the BMW dealer to use the DIS computer to lower the rear air springs by about 1" or 20-30 mm.
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Originally Posted by eurogreek1
One more thing. How do I know if I have air suspension in the back? I have an 01 4.4
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