I have mine on but wish I never put it on. I got 3 tickets in my old car because of it in 6 months. I was worried with this car but like Alex said I think its more of a sleeper so cops dont notice and from everyone else I hear from they do not get tickets either. I think the Alpine white helps out also.
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