750S (1970) exhaust headers with balance pipe

[Paul Marx]

I have yet to see a period photo of an S with the down pipes you fitted, Paul.
As far as I know all S had the wide bend, either with or without a balance tube.

Marnix

I'm the 3rd owner and have had the bike since the 90s with those pipes. I doubt that it was modified. I've had confirmation that there were both types on the late S.
Paul

 

[LJ-2]

Is this the wide bend you mean Marnix?

 

[MarnixSFC]

Is this the wide bend you mean Marnix?

That’s the one, yes.