I had mine done a couple of months ago as well by Wheels America. It was $130 per wheel for "remanufacture"/powder coat.
It's a slightly different silver but you wouldn't know unless you had the original next to it (which is how I noticed). Also, as others said, there is a slight orange peel in some areas.
Overall I'm very happy with the results.
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers