'98 and up Rams already come with a 3" mandrel-bent tailpipe (but 2.5"
cat-muffler, and dual 2.25", maybe 2"? before the cat, and none of it
Mandrel-bent). I was looking at a RV-style Ultra-flow (large size for extra
deep tone) with 3" inlet and outlets... and I'd change out the 2.5" from
cat-muffler next... then headers (I want long-tube equal-length) will
require replacing the before-cat piping (my cat is a 2-into-1 style, and may
have to be replaced at that time)
I think this system would provide good low-end torque, with much (if any)
sacrifice in top end... I think the Magnum motors like a little
backpressure... but my '68 charger 383 ran best (1/4 mile) with just
18"long, 2.75" diameter extensions on the headers... no mufflers... bottom
end was only slightly impacted, but really woke up when you revved it past
6000... I lost a good portion of that top end when I re-hooked the exhaust
for the street.. had Glasspacks, but the piping was rather small (2" or
2.25" dual), which may have had something to do with it.
Anyway, thanks for your input... now If I can just get that garage built....
Gary Shook
Penrose, CO
Gary, I have a 2 chamber Flowmaster, but I think the key
here is, Rich and I have a 3 inch single exhaust system. I
like the Gibson muffler and have no complaints on the Flowmaster.
The 3" exhaust on mine goes out the back and terminates into
a duel resonator. I believe all this adds up to tons of torque.
side by side, If your not with me after 1st gear, I'm gone.
A Gibson muffler, Borla or any good flowing muffler will work
with a single 3 inch w/o loosing any torque and helps scavenging.
Probably the most underrated secret to exhaust systems because
Flow (CFM) takes center stage. Results are MPG and some hp. If I had
an auto I would probably do the same. My experience and .02.
GS -
97 3.9L 5spd
98 5.2L 5spd
>
> Hi Gary,
> Sure thing. I installed an aluminumized Gibson cat-back w/3" single pipe.
> They also give you a nice polished stainless steel tip. It sounds good
too!
> Not to loud and definetly better than stock.
>
> They told me to expect about 15 years out of this system when I told them
> which area of the country I lived in. That's pretty darn good given all
the
> salt they use around here during the winter months. It may last longer
that
> this. It's been on for 3-1/2 years now, and still looks virtually new. I
> am very pleased with it.
>
> They also make a stainless steel cat-back, but it cost a BIT more. I
> believe you can also get different pipe configurations. Ex: dual exit
tips,
> etc.) Hope this helps.
> Rich - Ashburn, VA
>
> -----Original Message-----
> From: Gary Shook [mailto:gary.shook@wcom.com]
> Sent: Tuesday, August 24, 1999 6:00 PM
> To: dakota-truck@buffnet.net
> Subject: DML: Re: Re: Exhaust Advice
>
>
> which muffler?
>
> I've been leaning towards a Dynomax Ultraflow, but if the one you used got
> you those improvements, I'd like to consider it.
>
> Gary Shook
> Penrose, CO
>
>
> >Rich.Wisotzkey@gsc.gte.com> wrote:
> > I replaced my stock exhaust with a cat-back system, and watched my gas
> > mileage take an instant 18% increase. I supposedly gained an additional
> > 5-8hp to boot.
>
> That was my experience to Rich. 2 mpg, 7-8 hp on the
> muffler and 3 inch single.
>
> GS -
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