Finally got these installed on my 2006 e90. I bought the UHP one w/ LED signals from ebay. I have to say I am pretty satisfied so far.
The only error I get is the low beam warning light and the fact that they don't turn off automatically when I shut off the engine (I think the OEMs did).
Didn't use any error cancellers just installed what came in the package. As mentioned in an earlier post, I wish the angel eyes just turned on by itself w/o the parking.