Well, remus is definatly one of my favorite exhaust companies of all times. No word on if there are power gains to be had from the exhaust yet, or if it is just for sound, but I guess we have to wait to find out from the first people who get one
THe exhaust for the 330i incorporates the silencer system just like OEM too, now thats quality !
right now their website lists the 76mm and 84mm versions available
check it out at
http://www.remus.at