Hard to tell who made it!
I replied on the other site, and that's not a Dynoport. I have a Dynoport that I'll post pics of later. My guess on your pipe is old-school Aaen.
Thanx for the Dynoport pic

Clearly thats not it. I have seen pics of old Aaen mx-pipe on the site that were shut down. And this pipe is similar but more sections (27 from flange to stinger) and the welds are much sweeter on this one. Someone really put some time into building this pipe.
That's not the original FMF pipe, is it?
Supposedly copied from another design, it was a decent pipe.
I have the ct pipe. But it's the exhaust that comes out at your knee.
I've got a ct, and the bends don't look quite right.
It could be one of several older pipes
I,ve got a 250 hand coned pipe that I never found out who the maker was either.Guy I got mine from said a guy I think on 3 wheeler world makes some hand coned pipes.May want to ask around over there if your ambitious.
Heres that 250 pipe which I used to run before the Aaen thats on now.
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