I have a set of their M2 Carbon cans. Cost about $1150 new for cans only. Have about 6k on them. Have been rebuilt with McMaster Carr 1100 degree mineral wool about 800 miles before pulled off my bike at sale. Better sound and suposed to be a "forever" re-packing material than the stock repacking material. Top end is noticable on the power, mid range and low, seems no diff than stock. I had a K&N and cat eliminator stock when I got my bike so the power was noticed only on the top end. I have never ridded a R11S with a Cat, so couldn;t compare. Sound is very nice an unique compared to the Lazer and others. I would compare to a Boxer grumble of a Porsche and or Subaru STI.
E-mail me at
christianvwcars@yahoo.com and I can send you pics and more info/price.
