Just a quick note since I'm getting ready to leave for the Baltimore Kinetic Sculpture Race.
The chrome looks to be pretty good, and everything is very solid. I don't really know how to rate the welds, but where they show they're smooth and even (but not ground flush). At the 4-1 manifold, they're a bit rougher, but maybe that's cause they needed to fill in more space. I can try to do a few more close up pictures later, if there's interest.
They include split collars (which I didn't end up using- too flimsy) and a stop for your kickstand. I like the system since it tucks up nice and tight underneath and doesn't require a hanger on the rear like the Kerker seems to. And it's a pretty quiet system, especially compared to what I had before.
It was just under $600 shipped to my door, which felt a bit pricey but I treated myself.