Hi i have restricted pipes from a VJ23, and according to this site:
http://www.rgv250.co.uk/vj23info.htm
"The exhausts have collars welded in the necks which when ground out make them exactly the same as the de-restricted ones. "
now im not exactly sure what is meant with "collar", but it seems like it is this inner ring right at the beginning of the pipe? its about 31mm wide, ive checked with a jolly moto and they have 38mm inner diameter. can anyone confirm it is this ring that i have to remove for de-restricting?
