Mack211: The orginial thread is located here:
http://www.m3post.com/forums/showthread.php?t=297678
Do a search for Powerchip and you'll see a lot of posts about the benefits. My understanding is that BMW dealerships do not have the equipment to detect the presence of the tune. If the ECU is updated (like for a DCT update), Powerchip will charge $100 for a re-flash.
Somebody correct me if I'm wrong, but did I read somewhere in the originial thread that Mike would waive ths $100 re-flash fee the first time or perhaps during the first year?