Hi, got my stainless pipes coming tomorrow and I'm after some exhaust gaskets. I can get some genuine Honda ones, but they are or the NC29, are they the same as the NC23 Tri Arm ones?

Any help appreciated :)

I would think so, seeing as the headers are interchangeable between the two models.

Are they? I thought there were differences in the 23 and 29 systems

I'm guessing they'll be the same because the engines will be flowing similar amounts of air and will need similar diameter pipes

As far as I know, the only difference is the mid mounting point, other than that they are transferable. NC23 engines do have smaller exhaust ports, but the diameter where the headers fit will be, I suspect, the same.