Originally Posted by RPiM5
Hey what's up Fly?!
This is the first I've heard of this. Interesting find. I'm sure the BMW engineers will have to answer this one for you.
Hey Dave! this bothers me as i feel my car takes longer to spool up.
I feel with not having a closed box i'm losing air and pressure.
Current: 2014 M6GC CP and 2015 M3
Past: 2013 M5, 2012 E63, 2011 panamera turbo, 2010 E63, 2010 GTR, 2009 C63, 2008 M5