The HD version, chrome, switch buttons, rear master cylinder and chrome calipers were installed on my 2005 Se Fat Boy, when it was first bought and everything still looks new.
Tom
Personally, I'd stick with the Harley stuff. I've got all Harley on both of my bikes never had a problem....I only buy Harley stuff on sale from my local dealer (usually 20% off). Also, check sites like chicago harley and surdyke...you can find good deals on authentic Harley parts 20% off or more and sometimes free shipping.
I'd probably stick with the HD stuff also although I didn't know Kuryakyn made all that stuff and I'm at their website now looking at various things. But with these items specifically (the chrome electronic housing and switches) I would probably look at HD first.