Fletch189

Has anyone any experience of fitting the Leo Vince pipes ? I have just bought some from Italy and having removed the original muffler, there appears to be some sort of foil tape and possibly a ring on the end of the header pipe making it too big for the new link pipe to fit over. Is this part of the original set up or is it something the previous owner may have done ? Am I ok to remove it to get the new link pipe on ? Any help would be much appreciated. Cheers Fletch