s6 v10 exhaust clip

Still trying to figure out which to go with

The meisterschaft mate to a S6
http://www.youtube.com/watch?v=iJglzhdfEFM

or go with the electronic valve bypass
https://www.youtube.com/watch?v=DCXh34y0BCU

PATPS6 you do the X-pipe? Sounds Nice! Any power improvement?

feels a bit faster