Had a couple sets of BBS LM replicas. I had a terrible vibration when i fitted them as soon i went over 50mph, I thought it was because they hadn't been balanced correctly but found out down the line it was because they hadn't come with spiggot rings which make the alloy sit nicely on the hub.
So make sure if they need spiggot rings that they come with some (cost me another £20 and a few days' hunting some down on the net)
Also after 6 months the polished outer's on the Lm's started to get the dreaded white worm even after cleaning them all the time.Also notice more M.P.G with them being more heavy than genuine alloys.Definatley wouldnt get anymore replica's