not sure if this is the right section,,,but was wondering what the difference is between a set of headers for cbr400 nc23 and a nc29

the primary diam is larger on the 29
the chassis mount is different between the 2
and so is the bend to the muffler
reposition the chassis mount and bend up a new section from the collector to the muffler if u want to interchange them.
i run a 29 system on my 23.
stimpy