My friend just bought a 52piece CF set off eBay for 8$. I put them on his car for him. They don't look bad at all u just have to align them properly. I would go with real emblems but for the time it's not bad.
'13 328i MSport, AW, Black Dakota leather, Premium Pkg, xenons, Fully coded, CF roundels, Matt Black Grillz, Painted reflectors (front $ rear) Smoked tail lights, Plazma l.E.D White PY27W front turn signal,trunk spoiler, Matt Black roof, 8K D1S HID ,
Soon: H&R sports, Custom Exhaust, Front Lip, rear diff,!