That's a shame. I really like the sound of these too, and they seem to be very well made — nice finish and clean welds.Unfortunately, Motad is no more.
I have a Motad stainless system on the W800 and it gives a nice mellow note, big improvement over the original which sounded like a sewing machine. Plus it's much lighter and a lot easier to put on or take off - on the Kawasaki original system, the header pipe and silencer are one piece and don't come apart, plus you have to wrestle with a link pipe under the engine.