I am looking for some help in identifying this Y pipe for a 1150. It came off an 1150 R and I recieved it from a friend then I sold it to a guy who is installing it on a 1150 GS. He is having trouble installing it on his bike. It is apparentley not lining up correctly onto his rear pipe. Everything that I see for sale indicates that the same Y pipe is good for a 1150 GS/ R/ Adv Some examples= http://www.wunderlichamerica.com/motorcycle/0107087799.html http://www.beemerboneyard.com/boxrcpypip.html Same # on Remus website/ etc..... Any help would be appreciated. Thanks in advance. Any ideas?