I have this BMW factory LCI e70 Aero Kit :
https://www.xbimmers.com/forums/showthread.php?t=810463
My car is Sapphire black and I'm not sure this will really show a difference on mine. It's OEM, still in box with all the parts.
Prefer a local (Northern California) pick up so you can see exactly what you'll get.
PM me if interested