I personally think the originals look much better, the tinted ones are too dark. A very light tint looks good though IMO.
I like the original better too. Plus I am not really sure what the laws here in NC are towards tinted lights. When I lived in Philly, I had to drive back from Youngstown, OH and got pulled over for speeding in my 528i on I76 east of Pittsburgh. I got into a conversation with the State Highway officer and happened to ask him about the those tinted tail-lights since they were in my trunk (long story but I received 5 warnings from that stop). He wasn't sure if they were illegal or not, but said why give an officer a possible reason to pull you over. Sounded like good advice to me.