I like the copper ones and use them all the time.  I include them with
my hardware kits.  Hope this helps,

Ken Wilford
John 3:16
www.vanagain.com

Ryan Shawley wrote:
> So could I get a few of the list gurus to weigh in on this issue?  Should one use copper lock nuts on the exhaust studs, stainless, or the standard ones that typically come in a hardware kit.  I've checked the archives and their just wasn't a whole lot about it.
>
> Ryan
>
>