I think it'd look good with either a fresh color plastidip or stock color, but super clean. I honestly wouldn't lower it, the height looks good how it is.

Also, didn't your car come stock with a bunch of cool bells and whistles like Electronic Damper Control and etc. Do you know if lowering it will mess up the BMW engineering behind those things? Your car is sick as it sits, if you're gonna do a cosmetic mod, just make sure it doesn't mess with the awesome R&D that went into that bimmer.