I noticed there were a few threads recently regarding the sound that the remus pipe produces. I started on of the said threads.
Anyway I had mine fitted today. My car is a 2.2 coupe.
The sound with an irmy backbox is not overloud, it has a deep tone but doesn't roar or anything.
Just thought I would share for those who were wanting to know what one sounds like.
With regard to an increase in performance don't expect max power miracles. It does feel slightly less restricted when going through the gears.