Brand new H&R Sport Spring for either the 545i or 550i, fits all model year 04-08. Part # 50460 (for cars without self leveling). Drops the car by 1.3 front and 1.2 rear.
Still in box never been used. I originally planned on putting this on my car with the new set of wheels I got but decided on something else.

Retails for $469 and I'm selling it only for $275 shipped. Those of you that are thinking of getting this should know that this is a steal, all other places would usually charge over $300 for this w/o shipping.