I have some on my B13 and will be getting another set for my NX.
As you will see in the link..
.I tried to get a groupbuy done on these braces,but it got shot down by other members here who said they would just make them.
The parts pictured that were home made looked good,maybe you can contact these guys and see who has made what?
http://www.sr20-forum.com/general-sr20/70257-ultra-racing-braces-any-interest-group-buy.html
I would be willing to bet there was a lot of talk and no braces being built
Thats why I just closed the thread and bought my bars ,and called it a day.
As for installation...it was simple,and the bars are a nice beefy quality part.
I did have mine welded to the frame because they give you selftapping screws for the front attachment(which I dont trust)