The magnaflow is essentially a glass-pak muffler. Its straight through
flow, no chambers. They do get louder as the fiberglass shrinks from the
heat. I just put one on my 4.7 (with duals) and it got noticeably louder
after about 1K. It really opened up the low end on the 4.7, but on 3.9, you
may want to stick with FM since the baffles will give more resistance to the
exhaust flow. Nice thing about Magnaflow is that it carries a lifetime
warranty!
Paul
----- Original Message -----
From: "Wes Weems" <wweems@fix.net>
To: <dakota-truck@dakota-truck.net>
Sent: Friday, July 12, 2002 9:57 PM
Subject: DML: Opinions on magnaflow mufflers
>
> I got a little 3.9l dakota... And I had a nice aftermarket cat and a 2
> chamber 2.5 in double 2.5 out flowmaster... I think this muffler is
> shot, and I investigated a new muffler... The guy said he could get me
> the equivalent magnaflow muffler as far as size, and loudness, but do
> they really get that loud? I don't want to decide on it, if its not
> going to be loud... The louder the better and if I need another
> flowmaster I need another flowmaster
>
>
> WEs
>
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