The first version of Chris' replica CB750 pipe was made back prior to March 2009 -- over four years ago. That was the version that was on the bike previously. It was not a two-piece design, nor did it have the springs, but it did feature cross-overs. It was ceramic powder coated satin black.
The two-piece design came into play about two years ago. It differentiated itself from other Yosh replica pipes.
Tews: Yes, you can chrome it, powder coat it or leave it plain. I would ceramic PC it, as the chrome can discolor from the heat. You can get powder coating in metallic colors, too.