I went to Studie last night and had it installed. See the pics below - parked next to a nice M5 as well!
I have only driven a little so far but can say the following:
- not a lot of change up to 3,000 rpm
- over 3,000 and it pulls way harder than before
- can hear the turbo a lot more
- definately is spunkier
Will drive it some more before taking the after video and will post along with more comments - so far a happy camper