Just rec'd an email from my dealer about the upgrade for the 335 and 535's, seems fairly straight forward, has anyone had it done, curious on enhancement along w/ approx cost...thanks.

Just did it to my new 535xi, on arrival, $2000 plus $200 install, warranty still good. I have to break it in first, 750m and counting. Will

same thing will install to touring right.... I'm dreaming and we haven't even decided b/n the wagon or the next x5 in diesel form. The 535xiT6 would be such a hot rod wagon though.

Dealer tried to install on my new 535xiT last month and wouldn't work. New version out 4/10 and they called to say it's time to try again. My car isn't even broken in yet.