Anyone installed a Flo Pro #2504 Muffler in a 6.0

[Fred]

I was wondering if anyone has installed a Flo Pro #2504 Muffler(dual in and
out muffler to replace a stock muffler) in a 6.0 Chevy Silverado(2004). I
installed a Magnaflow #12599, a few months ago, and it sounds great, but has
too much noise in the cab. I read where the Flo Pro wouldn't be as loud.
The Magnaflow is a dual 3 inch in and 3 inch out, and the Flo Pro is a dual
3 inch in and 2 1/2 inch out. Would that be the reason for the Flo Pro
being not as loud? Thanks for any help

[Jordan Smith]

well i have a 95 chevy short wide 4X4, it has 6 banger but i have the
flo pro on her and its very loud in the cab. Of course i have it dumped
at the front of the bed so that may be the cause but muffler vibration
of cab is very loud.

[Shakes73]

The smaller your pipe and the longer your pipe the quieter your
exhaust.I use a flo master on mine 3 in and dual 2 1/2 out and the
only time it is loud in the cab is dead on 65mph but before or after
that it’s pretty much quiet.

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[Fred]

I finally replaced my muffler with a Flo Pro #2504. No more
drone(resonance) at 1,500 -2,000 r.p.m. At 70-80 M.P.H. quieter, also.
Keep the stock single tailpipe. Sounds good under full throttle, and I do
feel alittle more power. I'm very satisfied with it. Look under HD Big
Oval in www.flopro.com website. No fiberglass to blow out.
"Fred" <ric...@cableone.net> wrote in message
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