YUP, I had the BMS stage 1 tune, and moved to the Dinan because of my Warranty concerns.
Every BMW Dealer in So. Cal that i have talked to, is kind of giving me the impression that it was a bad break up.
the new name is
M Performance
anyway I found this cool little add on to the BOV for the X1's
http://www.2addicts.com/forums/showt...php?p=18292691
My factory BOV works, just does not hold boost past 3k RPMms, it leaks out...