On Aug 21, 2007, at 2:00 PM, Mike S wrote:

> At 02:57 PM 8/21/2007, TC wrote...
>
>> So now when i do the connector pipe what grade of ss do i use 304 is
>> out so
>> 3XX or zinc plated ??
>
> I'd recommend copper nuts. A quick google give this as a potential
> source (check the size):
> http://www.bildon.com/catalog/results.cfm?
> category=Exhaust&SubCategory=Components&Nav=7

FWIW,
Last weekend, I  removed the 3 copper nuts on the connection between
the cat & the muffler to put in a gasket which was missing.  I had
installed the nuts a couple of months ago when I discovered all the
nuts loose & no gasket left, & I didn't have one available.  Finally
got the gasket, & the 1st copper nut I tried to remove, snapped off
when I tried to loosen it w/ a 1/4" socket.

The other nuts came off fairly easily, so don't know why 1 failed
after a short time.

YMMV,

Tom B.-nuts to the copper nuts?