Supersprint Exhaust for BMW X5 4.8is or Magnaflow?

[BMW-x5-48is]

Guys,

For a while now I was thinking of redoing the exhaust (back end). I Want to get rid of the stock mufflers and go with either stright pipes all the way to the back - or go with imroved mufflers. Just stright pipe might be too loud and raspy - so I have started to search online for exhaust systems and came across this system -> Supersprint Exhaust for BMW X5 4.8is V8 (e53) - 2005-2006 - 4x90x85mm oval.. Its not cheap.. $2,500 - not including installation/tax so I'm looking at 3 Grand...

Most important question - is this worth it?? and does anyone have any vids or sound clips of how the X5 sounds with the Supersprint Exhaust?? is it worth the $$?? or should I go to a custom exhaust shop and have them play around?? One exhaust shop near me quoted me $1,100 to redo the exhuast with MAGNAFLOW mufflers similar to ones in Dodge Chargers (as seen here: MAGNAFLOW® - Street Series Cat-Back Exhaust System - Dual Split Rear Exit - 2012 Dodge Charger Magnaflow Street Series Exhaust Systems )

What you guys recommend??? Is the supersprint mufflers good? worth it?? or should I try to do the rear end of the exhaust with magnaflow parts? I want this car to sound like a beast and right now I feel the stock mufflers are limiting that...