Just curious as to why you would not buy the real one? It is not much more money and fits and is made perfectly. You spent a lot on a BMW no need to skimp on parts. Im not trying to be an ass but I am trying to give you some good advice.
2010 AW e90 328i: 6 speed, Black Leather, Dark Wood trim, ZPP, ZCW, ZVP,ZSP, Nav, Xenon
BMW Performance CF Rear spolier and Gloss black grills
2008 Candy White MKV GTI 2.0T 6 Speed Manul Gone
2008 AW X3 3.0si: 6 speed Returned
2006 AW e90 330i: 6 speed Dinan Stage 1 Returned