Greg-
You recently wrote:
> The glass packs really don't restrict flow like a box muffler.
I've used glasspacks before, too, but I've heard that they can actually be
restrictive. What have you heard? Maybe it's just the louvered ones that
are restrictive, rather than the ones with just holes that are flush with the
tubing? I've never run any good quantitative tests to see for myself, and I
haven't read anything that I can recall, but I'd like to know what you think.
I enjoy reading your messages.
-Paul Geithner
Arnold, MD
NASA-Goddard Space Flight Center
Hubble Space Telescope Project
'78 Spitfire
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