https://seattle.craigslist.org/see/mpo/d/edmonds-new-kawasaki-h1-500-triple/7593445032.html
I inquired if he is manufacturing the exhaust for the RD 400-350's and the answer was not yet but if there is enough demand he will produce them.
the company is Hell Fire Expansion Chambers
https://www.sonicexpansionchambers.com/
They look and sound great.
https://youtu.be/AqP3WcGyosM
look an awful lot like denco copies, and i know jim stopped doing them. hm.
Seems he even gives them the Mop & Glo treatment, or something similar.
"Pipes sets come finished in a protective wax sealant"
And if you don't like your neighbors there's a straight stinger version available. :devil:
He does say that they are Denco copies.
He has been around awhile https://www.2strokeworld.net/forum/index.php?topic=3126.msg27301#msg27301