There are three different bumper covers; the standard, the aero, and the M Sport. All are listed by Realoem as being under $800. They are shown as coming primed, so you need to add painting to match the car, and installation, to that.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue