(Flame suit on)
Unless you are tracking the car regularly I don't really see the need for a BBK.
My pagid disc, ss hose, racing blue fluid and cool carbon pad set up is plenty good enough for fast road driving.
If you do go to the track regularly then I definitely see the need. I do see a lot of people who buy bbk's for the look and never go on track though!!!
Car: 2010 Jaguar XFR (Cat-back exhaust)
Gone but not forgotten: Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)