Ebay is your only option for 230 exhaust (maybe CL, if you're lucky)....I looked for 2 months before I found a cobra exhaust, but what I really wanted was the DG.
A year later I finally saw a DG for sale, but decided I didn't need it ($150 for a marginal extra HP? meh.)
I did see a few stock exhausts on Ebay when I was looking, pretty cheap and conditions varied wildly.
Also considered making my own exhaust, doesn't appear to be that complex (definitely easier than a 2S pipe).
Just need a pipe bender and a torch...