So here it is, the Danmoto DB killer/Baffle. Not the best design I've ever seen, in fact, one of the worst. It does nothing to quieten down the exhaust. But after spending money on this system, I wasn't ready to give up just yet.
So here's what I did. First of all, I went to my local supermarket and purchased some Stainless steel wool. Make sure it's stainless, as standard steel wool will rust. I lengthened it out, and pushed a wire through the baffle. After this I tied the steel wool to the wire through the middle.
So here it is inserted. This flies out of the exhaust, looks a bit like a child poking their tongue out when moving.
So what I did was get a small piece of wire, bend a loop in it, and tie the other end of the wool to the wire. Now it stays inside the exhaust and does a great job of reducing the sound WITHOUT restricting airflow or compromising performance.
It is crude, and somewhat unsightly. But it works.