sound wise i guess its personal taste. it all depends on the whole system. for all we know those are running non restricted systems. i'd be tempted to see what it would sound like with a sports silencer, or even the standard exhaust :p :whistle:
 
i been told that to get that whoooosh noise you basically have to start with quite a large diameter downpipe, and make it alot smaller towards the backbox, this is what i was told by a custom exhaust place, so im assuming you could make any system sound like that without the raspyness that the tt had.
 
got mine fitted on my 225 LCR and IMO sounds a lot better (much deeper tone) and has greater throttle response than my milltek non res from my old mk4 golf.

Have to hear it in person to really compare