6" SS EXHAUST STACK

[Kurt Horvath]

David,

My 86610M Muffler is OK as far as quality, but it's still rather
light weight in construction, and is not a flow through design.
Enough said on mufflers. Seeing how neither one of us is going to use
one

One of the perimeters I used in acquiring the materials for this
project is to use the heaviest materials I could find and keep the
project within a reasonable costs.

It seems as though 16ga. .065 Is the standard thickness available in
exhaust parts. I have acquired 5" Stainless Steel in 14ga. .085 this
should help with the metal fatigue problems of the thinner material
and create a stronger, tougher pipe system.

It has been brought to my attention the 304 SS may not be the best SS
to use in a vehicle application. The 400 series of SS may be a better
choice, but at this point I just need to get the coach up and running
again.

I have neglected some of my other obligations and I have exhausted my
time to research the exhaust much further.

Some of the manufactures I asked to quote this job have responded ,
most have not, and I am resolved to building it myself. Mostly due to
the fact that I can buy the materials and have it welded by a Nuclear
Certified welder, make any changes or adaptations quickly at half the
cost and in a timely manner.

I have most of the materials on hand or they're in transit at this
time and with any luck I'll have everything restored in the engine
bay in time for my families annual X-Mass trip.

There is a design that I found that is interesting for the stack
design Look at new photos on home page.

I'll speak with my guy tomorrow about the dual 5" stack, After a
little thought it doesn't seem to be a bad idea. The exhaust tunnel
in my coach is 13.50" X 13.00" and it would fit with a slight clamp
down mod.

Besides it would look really cool with dual 5' curved mitered stacks
coming out the roof.

Kurt Horvath
95 PT 42
10AC




--- In WanderlodgeForum@yahoogroups.com, David Brady
wrote:
>
> I agree, flow is what's important. Also you need to keep in
> mind that many of these numbers are derived from mathematical
> models; therefor, you must build in a margin of safety. For
> this reason I won't accept a muffler that will flow 2877cfm,
> but I'll accept one that publishes a flow number of 1.5 times
> 2877cfm. Another thing is that truck exhausts are heavier
> construction than auto exhausts. I've inspected my Nelson,
> part no. 28214A, and it is good quality. I wouldn't use any
> automotive components. IMO, they won't hold up. Otherwise
> I suppose you are right, it's pointless to further discuss muffler
> selection.
>
> David
> '02 LXi, NC
>
> Kurt Horvath wrote:
> >
> > David,
> >
> > The Max exhaust outflow from a DD S-60 470 HP motor is 2877 CFM @
> > 875degrees F. these numbers are the same for the 500 HP version..
> >
> > Then from your calculations of 5" diameter:= 6500 cfm & 6"
> > diameter:= 10000 5" diameter: 6500 cfm 6" diameter: 10000 cfm you
can
> > extrapolate, the 5" pipe has more than 2.25929 times more capacity
> > to exhaust the gases the Series 60 is capable of producing and
the 6"
> > has nearly 3.47584 times more capacity than the engine can
produce.
> > If calculate in . back pressure of 2 inches of Hg:5" diameter:
5500
> > cfm 6" diameter: 8750 cfm. You are still under max. capacity The
> > flow may be further enhanced by the use of Ceramic Coatings or
> > Thermal Blankets. To retain flow velocity. I intend to employ
both.
> >
> > Mufflers should be based on flow capacity rather than size because
> > engines are flow sensitive, not size sensitive. This being so, why
> > should the same not apply to the selection of mufflers? The answer
> > is that it should, as the engine's output is influenced minimally
by
> > size but dramatically by flow capability. Buying a muffler based
on
> > pipe diameter has no performance merit. The only reason you need
to
> > know the muffler pipe size is for fitment purposes. The engine
cares
> > little what size the muffler pipe diameters are but it certainly
does
> > care what the muffler flows and muffler flow is largely dictated
by
> > the design of the innards.
> >
> > I have review all the available mufflers from all mentioned
sources,
> > Fleetgaurd, Nelson, Donaldson and several custom Mfg.'s. I
decided to
> > go with a mfg. Outside the box, who manufacture mufflers for race
&
> > show cars. His design is basically a straight pipe. So to continue
> > discussing mufflers isn't where I'm going, I don't intend to use a
> > muffler. I am going to use a pipe that doesn't restrict flow but
will
> > reduce SOME of the noise. Nothing more.
> >
> > Honestly I would not use anything from any of the typical sources,
> > due to the one size fits all mentality and the materials used in
> > their Mfg. . That is not Stainless and the mediocre quality
accepted
> > as OEM quality.
> >
> > Whether you go 5" or 6" in a Straight Stack it will more than
handle
> > the load.
> >
> > Kurt Horvath
> > 95 PT 42
> > 10AC
> >
> > --- In WanderlodgeForum@yahoogroups.com
> > , David Brady
> > wrote:
> > >
> > > And at a back pressure of 2 inches of Hg:
> > >
> > > 5" diameter: 5500 cfm
> > > 6" diameter: 8750 cfm
> > >
> > > I think the work you are doing is applicable to my BB. It's
> > > not quite apples and oranges. Do you have a source for a
> > > 5" stainless steel straight thru pipe? If you do, I'd like to
have
> > > it. Looking forward to you letting us know how loud a straight
> > > thru pipe is!
> > >
> > > David
> > > '02 LXi, NC
> > >
> > > David Brady wrote:
> > > >
> > > > It's a little late, I'll have to check my math in the morning,
> > > > but for a gas temp of 800 deg F, and a muffler input absolute
> > > > pressure of 38psi (when I'm less tired I'll revisit this
number,
> > but
> > > > I think it's ballpark), and assuming a back pressure of 3
inches
> > > > of Hg, and a tube length of 60 inches, I get:
> > > >
> > > > 5" diameter: 6500 cfm
> > > > 6" diameter: 10000 cfm
> > > >
> > > > David
> > > > '02 LXi, NC
> > > >
> > > > Kurt Horvath wrote:
> > > >
> > > >> DAVID,
> > > >>
> > > >> WHAT IS THE FLOW RATE FOR 5" and 6" staight pipes, I have a
new
> > > >> 86610M I would like to sell it. Evidently were comparing
apples
> > and
> > > >> oranges, If your coach uses a diffrent muffler. All my
research
> > has
> > > >> been for the 95-96 PT 42's and it's systems. I can't help
much in
> > > >> regardes to the other model coaches
> > > >>
> > > >> Kurt
> > > >> 95 PT 42
> > > >> 10AC
> > > >>
> > > >> --- In WanderlodgeForum@yahoogroups.com
> >
> > > >> , David Brady
> >
> > > >> wrote:
> > > >> >
> > > >> > For comparison sake, the manufacturer of the OEM muffler
> > > >> > is Nelson:
> > > >> >
> > > >> > http://www.nelsonexhaust.com.au/pdfs/fleetguard.pdf
> > <http://www.nelsonexhaust.com.au/pdfs/fleetguard.pdf>
> > > >> <http://www.nelsonexhaust.com.au/pdfs/fleetguard.pdf
> > <http://www.nelsonexhaust.com.au/pdfs/fleetguard.pdf>>
> > > >> >
> > > >> > They don't list the LXi muffler in the above pdf, I'll
call on
> > > >> > Monday to see if I can get some CFM specs from them. The
> > > >> > closest item in the above pdf is a 6" inlet and outlet
straight
> > > >> > thru muffler measuring 282mm dia and 1130mm length, part
> > > >> > number 86610M. The OEM LXi muffler measures 300mm
> > > >> > dia, and 1200mm length.
> > > >> >
> > > >> > The above pdf lists CFM specs for part number 86610M as
> > > >> > follows:
> > > >> >
> > > >> > at 3 mm of Hg pressure: cfm = 3700
> > > >> > at 2 mm of Hg pressure: cfm = 3020
> > > >> >
> > > >> > I expect the numbers to be even higher for the stock LXi
OEM
> > > >> > muffler. I'll call to get actual numbers, but these are the
> > kinds of
> > > >> > CFM's that we should be looking for. So far I haven't seen
any
> > > >> > 5" mufflers coming close to that kind of flow rate at these
> > > >> pressures.
> > > >> >
> > > >> > David Brady
> > > >> > '02 LXi, NC
> > > >> >
> > > >> > David Brady wrote:
> > > >> > >
> > > >> > > Kurt
> > > >> > >
> > > >> > > I'm more convinced now that 5" is the standard trucking
> > muffler
> > > >> > > size cause they run dual stacks. Donaldson doesn't make a
> > > >> > > muffler that's suitable for the 14L Series 60, in this
case
> > you
> > > >> have
> > > >> > > to use dual 5 inchers if you buy from Donaldson. Again,
it
> > would
> > > >> > > be interesting to take a look at your typical late model
14L
> > > >> Series
> > > >> > > 60 equipped Prevost. I know their mufflers exit below the
> > bumper,
> > > >> > > but it would be interesting nonetheless. I'm interested
in
> > all
> > > >> this cause
> > > >> > > I'll be needing a muffler change in the near future, so
let's
> > > >> work
> > > >> > > together
> > > >> > > to arrive at a good solution. I want more horsepower.
Let's
> > figure
> > > >> > > out how to improve the breathing. Assuming that the
intake
> > is not
> > > >> the
> > > >> > > limiting factor, and I don't think it is, enhancing the
> > exhaust
> > > >> should
> > > >> > > improve performance and engine life, less heat, higher
> > manifold
> > > >> > > pressures, better fuel mileage and longer piston and ring
> > life.
> > > >> Not
> > > >> > > trying to get under your skin, just looking for a
suitable
> > > >> improvement in
> > > >> > > my engine. Your the lucky guy who's gotta travel down
this
> > road
> > > >> > > first.
> > > >> > >
> > > >> > > David
> > > >> > > '02 LXi, NC
> > > >> > >
> > > >> > > Kurt Horvath wrote:
> > > >> > >
> > > >> > >>
> > > >> > >> > But Kurt, it's only 5 inches, correct? The turbo dumps
> > into
> > > >> > >> > 5 inches but the gases are hot, low density, low
pressure
> > and
> > > >> > >> > moving fast. As the exhaust progresses down the
exhaust
> > > >> > >> > system the air cools, becomes more dense, and back
> > pressure
> > > >> > >> Ø increases.
> > > >> > >> Ø
> > > >> > >> Ø CORRECT, THAT IS WHY YOU USE EXHAUST BLANKETS ON THE,
> > MANIFOLD,
> > > >> > >> TURBO, PIPES, AND STACK TO KEEP THE HEAT INSIDE THE
PIPES
> > FROM
> > > >> > >> COOLING THUS MAINTAINIG THE VELOCITY OF THE ESCAPING
EXHAUST
> > > >> > >> Ø
> > > >> > >> Ø If way down the exhaust you go from 6 to 5 your
> > > >> > >> Ø increasing the backpressure.
> > > >> > >> Ø
> > > >> > >> Ø THE EXHAUST DOES NOT REDUCE DOWN TO 5" FROM 6" IT IS
5"
> > FROM
> > > >> TURBO
> > > >> > >> TO THE END OF THE STACK DICHARGE. A 6" STACK CAN BE
BUILT
> > AS I
> > > >> > >> DECRIBED BEFOR BUT COSTS ARE DOUBLED. 5' SS TUBE $20 A
> > FOOT, 6"
> > > >> SS
> > > >> > >> TUBE $50 A FOOT
> > > >> > >> Ø
> > > >> > >> Ø This will make the exhaust run
> > > >> > >> > hotter at the turbo, high turbo pyrometer, less turbo
> > velocity,
> > > >> > >> > and a reduction in performance. 5 inches is 20 square
> > inches,
> > > >> > >> > while 6 provides 30, a whopping 50% improvement. I'm
gonna
> > > >> > >> > stick with the 6 or figure out a way to stuff 2 five
inch
> > > >> stacks
> > > >> > >> Ø in the corner of the bus.
> > > >> > >> Ø
> > > >> > >> Ø I'M SURE THIS GUY COULD BUILD 2-5" STACKS AND HOOK
THEM
> > > >> TOGETHER
> > > >> > >> WITH A COLLECTOR AT THE START LIKE HEADERS
> > > >> > >> Ø
> > > >> > >> Ø If you take it down to 5 inches, let
> > > >> > >> > us know if your turbo pyrometer shows excessive temps
on
> > > >> > >> > those long 6% grades. I think the key is
> > eliminating/reducing
> > > >> > >> > back pressure.
> > > >> > >> >
> > > >> > >> > Do you have a web page for the 5" stack that you'd
like to
> > > >> > >> Ø use?
> > > >> > >>
> > > >> > >> NO THEY DO NOT LIST THE STACK IT IS CUSTOM BUILT
> > > >> > >> >
> > > >> > >> Ø Check this out:
> > http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>
> > > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>>
> > > >> > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>
> > > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>>>
> > > >> > >>
> > > >> > >> IT WILL TAKE SOME TIME TO ASSIMULATE ALL THAT
> > > >> > >> >
> > > >> > >> >
> > > >> > >> > David
> > > >> > >> > '02 LXi, NC
> > > >> > >>
> > > >> > >> >
> > > >> > >> > David
> > > >> > >> > '02 LXi, NC
> > > >> > >>
> > > >> > >> --- In WanderlodgeForum@yahoogroups.com
> >
> > > >>
> > > >> > >> , David Brady
> > > >>
> > > >> > >> wrote:
> > > >> > >> >
> > > >> > >> > But Kurt, it's only 5 inches, correct? The turbo dumps
> > into
> > > >> > >> > 5 inches but the gases are hot, low density, low
pressure
> > and
> > > >> > >> > moving fast. As the exhaust progresses down the
exhaust
> > > >> > >> > system the air cools, becomes more dense, and back
> > pressure
> > > >> > >> > increases. If way down the exhaust you go from 6 to 5
your
> > > >> > >> > increasing the backpressure. This will make the
exhaust
> > run
> > > >> > >> > hotter at the turbo, high turbo pyrometer, less turbo
> > velocity,
> > > >> > >> > and a reduction in performance. 5 inches is 20 square
> > inches,
> > > >> > >> > while 6 provides 30, a whopping 50% improvement. I'm
gonna
> > > >> > >> > stick with the 6 or figure out a way to stuff 2 five
inch
> > > >> stacks
> > > >> > >> > in the corner of the bus. If you take it down to 5
> > inches, let
> > > >> > >> > us know if your turbo pyrometer shows excessive temps
on
> > > >> > >> > those long 6% grades. I think the key is
> > eliminating/reducing
> > > >> > >> > back pressure.
> > > >> > >> >
> > > >> > >> > Do you have a web page for the 5" stack that you'd
like to
> > > >> > >> > use?
> > > >> > >> >
> > > >> > >> > Check this out:
> > http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>
> > > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>>
> > > >> > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>
> > > >> <http://dieselinjection.net/BRUCE/articles.html
> > <http://dieselinjection.net/BRUCE/articles.html>>>
> > > >> > >> >
> > > >> > >> >
> > > >> > >> > David
> > > >> > >> > '02 LXi, NC
> > > >> > >> >
> > > >> > >> > Kurt Horvath wrote:
> > > >> > >> > >
> > > >> > >> > > Gregg,
> > > >> > >> > >
> > > >> > >> > > Yea, ALL SHOW AND NO GO!-
> > > >> > >> > >
> > > >> > >> > > David,
> > > >> > >> > >
> > > >> > >> > > I know what you're after but the pipes I described
are
> > > >> basically
> > > >> > >> > > straight pipes with a very well designed sound
> > surprising
> > > >> ceramic
> > > >> > >> > > coating that does not restrict flow. But won't be as
> > harsh
> > > >> as a
> > > >> > >> > > straight pipe. Cost is nominal at $250.00 Vs $200
for a
> > > >> straight
> > > >> > >> pipe
> > > >> > >> > >
> > > >> > >> > > Kurt Horvath
> > > >> > >> > > 95 PT 42
> > > >> > >> > > 10AC
> > > >> > >> > >
> > > >> > >> > > @yahoogroups.com, "Gregory OConnor"
wrote:
> > > >> > >> > > >
> > > >> > >> > > > Kurt, I dont think big thick straight pipes were
> > mounted on
> > > >> > >> those
> > > >> > >> > > > rigs for performance or efficiency. its all looks
and
> > > >> > >> compensation.
> > > >> > >> > > > Bet every trucker with 8 inch stacks also drive a
4x4
> > > >> requiring
> > > >> > >> a
> > > >> > >> > > > step latter to get into.
> > > >> > >> > > > Greg 94pt,toyota pickup
> > > >> > >> > > >
> > > >> > >> > > > --- In WanderlodgeForum@yahoogroups.com
> >
> > > >>
> > > >> > >>
> > > >> > >> > > , "Rob
> > Robinson"
> > > >> > >> > > > wrote:
> > > >> > >> > > > >
> > > >> > >> > > > > Kurt two years ago up here in BC I saw a
millenium
> > > >> Bluebird
> > > >> > >> > > parked
> > > >> > >> > > > across
> > > >> > >> > > > > from me at my home RV park that had two stacks.
The
> > > >> owners
> > > >> > >> were
> > > >> > >> > > only
> > > >> > >> > > > > visiting and must have been out sight seeing
most
> > of the
> > > >> time
> > > >> > >> > > > because I
> > > >> > >> > > > > never did see them. I sure would have like to
see
> > behind
> > > >> their
> > > >> > >> > > > engine bay.
> > > >> > >> > > > >
> > > >> > >> > > > > 2008/11/1 Kurt Horvath
> > > >> > >> > > > >
> > > >> > >> > > > > >
> > > >> > >> > > > > > I guess you could or go to a large 8" single ,
> > bit the
> > > >> > >> chrome
> > > >> > >> > > > shops
> > > >> > >> > > > > > sell them for outrageous prices---$692.00
> > > >> > >> > > > > >
> > > >> > >>
> > http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>
> > > >>
<http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>>
> > > >> > >>
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>
> > > >>
<http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>
> > >>
> > > >> > >> > >
> > > >>
<http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>
> > > >>
<http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>>
> > > >> > >>
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>
> > > >>
<http://www.iowa80.com/DirectionsWEB/webc...splay.php?
> > <http://www.iowa80.com/DirectionsWEB/webc...splay.php?>>
> > > >> >>
> > > >> > >> > > > > > itemid=74151
> > > >> > >> > > > > > Kurt Horvath
> > > >> > >> > > > > > 95 PT 42
> > > >> > >> > > > > > 10AC
> > > >> > >> > > > > >
> > > >> > >> > > > > > In WanderlodgeForum@yahoogroups.com
> >
> > > >>
> > > >> > >>
> > > >> > >> > >
> > > >> > > > >> > >> > > > 40yahoogroups.com>,
> > > >> > >> > > > > > David Brady wrote:
> > > >> > >> > > > > > >
> > > >> > >> > > > > > > Now we're talking. Can you fit two stacks
back
> > > >> there? I'm
> > > >> > >> > > > > > > serious. This will be an improvement in
> > performance.
> > > >> Two
> > > >> > >> > > stacks
> > > >> > >> > > > > > > will dramatically reduce backpressure, which
> > will
> > > >> result
> > > >> > >> in
> > > >> > >> > > > > > > lower turbo pyrometer temps, and will allow
more
> > > >> boost and
> > > >> > >> > > > > > > more power. A single 5 inch, as compared to
the
> > > >> stock 6"
> > > >> > >> > > > > > > will do the reverse.
> > > >> > >> > > > > > >
> > > >> > >> > > > > > > David
> > > >> > >> > > > > > > '02 LXi, NC
> > > >> > >> > > > > > >
> > > >> > >> > > > > > >
> > > >> > >> > > > > > > Kurt Horvath wrote:
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > > One pipe from the turbo then splits to two
> > stacks.
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > > Kurt Horvath
> > > >> > >> > > > > > > > 95 PT 42
> > > >> > >> > > > > > > > 10AC
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > > --- In WanderlodgeForum@yahoogroups.com
> >
> > > >>
> > > >> > >>
> > > >> > >> > > > > 40yahoogroups.com> > > > >> > >> > > > 40yahoogroups.com>
> > > >> > >> > > > > > > > > > > >> > >> 40yahoogroups.com > > > >> > >> > > > 2540yahoogroups.com>>,
> > > >> > >> > > > > > David Brady
> > > >> > >> > > > > > > > wrote:
> > > >> > >> > > > > > > > >
> > > >> > >> > > > > > > > > But doesn't the trucking industry run
dual
> > > >> exhausts?
> > > >> > >> > > > > > > > >
> > > >> > >> > > > > > > > > David Brady
> > > >> > >> > > > > > > > > '02 LXi, NC
> > > >> > >> > > > > > > > >
> > > >> > >> > > > > > > > > Pete Masterson wrote:
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > Having recently replaced my muffler
(at
> > great
> > > >> > >> expense) -
> > > >> > >> > > -
> > > >> > >> > > > had
> > > >> > >> > > > > > I
> > > >> > >> > > > > > > > to do
> > > >> > >> > > > > > > > > > it over again, I'd have switched over
to
> > a 5"
> > > >> system
> > > >> > >> > > from
> > > >> > >> > > > > > turbo to
> > > >> > >> > > > > > > > > > stack. As others have stated, it's 5"
at
> > the
> > > >> turbo
> > > >> > >> > > outlet
> > > >> > >> > > > and
> > > >> > >> > > > > > the
> > > >> > >> > > > > > > > > > standard in the heavy truck industry
is
> > 5".
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > The only performance difference I
notice
> > > >> (between
> > > >> > >> the
> > > >> > >> > > old
> > > >> > >> > > > > > blown
> > > >> > >> > > > > > > > out
> > > >> > >> > > > > > > > > > muffler and the new one) is that the
> > exhaust-
> > > >> type
> > > >> > >> Jake
> > > >> > >> > > > brake
> > > >> > >> > > > > > > > seems to
> > > >> > >> > > > > > > > > > be slightly less effective.
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > Pete Masterson
> > > >> > >> > > > > > > > > > '95 Blue Bird Wanderlodge WBDA 42
> > > >> > >> > > > > > > > > > aeonix1@ > > > > > >> > >> > > 2540mac.com>>
> > > >> > >> > > > > > > > > > On the road at Hohenwald, TN (Natchez
> > Trace
> > > >> Parkway)
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > On Oct 31, 2008, at 11:24 PM, Kurt
Horvath
> > > >> wrote:
> > > >> > >> > > > > > > > > > > <snip>
> > > >> > >> > > > > > > > > > > For the last four weeks I have
queried
> > > >> Detroit
> > > >> > >> Diesel,
> > > >> > >> > > > > > Custom
> > > >> > >> > > > > > > > Exhaust
> > > >> > >> > > > > > > > > > > Fabricators, Several OEM Exhaust
Mfg.'s,
> > > >> Marine
> > > >> > >> > > Exhaust
> > > >> > >> > > > > > > > Engineers &
> > > >> > >> > > > > > > > > > > Fabricators, My BB Guru, and anyone
> > else that
> > > >> > >> would
> > > >> > >> > > > lend an
> > > >> > >> > > > > > > > ear, and
> > > >> > >> > > > > > > > > > > no one has expressed any
apprehension or
> > > >> regard
> > > >> > >> in the
> > > >> > >> > > > > > respect
> > > >> > >> > > > > > > > to a
> > > >> > >> > > > > > > > > > > 5" exhaust system. In fact all
parties
> > > >> expressed
> > > >> > >> their
> > > >> > >> > > > > > surprise
> > > >> > >> > > > > > > > in
> > > >> > >> > > > > > > > > > > respect as to why the system would
> > change
> > > >> size at
> > > >> > >> the
> > > >> > >> > > > > > muffler.
> > > >> > >> > > > > > > > > > >
> > > >> > >> > > > > > > > > > > Several owners have modified their
> > systems
> > > >> to 5"
> > > >> > >> from
> > > >> > >> > > > end to
> > > >> > >> > > > > > > > end, and
> > > >> > >> > > > > > > > > > > have seen no change in performance.
> > Positive
> > > >> or
> > > >> > >> > > > negative, In
> > > >> > >> > > > > > > > general
> > > >> > >> > > > > > > > > > > it was just a matter of convenience
in
> > > >> acquiring
> > > >> > >> > > parts,
> > > >> > >> > > > I
> > > >> > >> > > > > > won't
> > > >> > >> > > > > > > > get
> > > >> > >> > > > > > > > > > > into that. That has recently been
> > beaten to
> > > >> death
> > > >> > >> at
> > > >> > >> > > the
> > > >> > >> > > > > > > > expense of
> > > >> > >> > > > > > > > > > > all parties involved
> > > >> > >> > > > > > > > > > >
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > --------------------------------------
----
> > -----
> > > >> -----
> > > >> > >> ----
> > > >> > >> > > --
> > > >> > >> > > > > > > > ------
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > > > Internal Virus Database is out-of-
date.
> > > >> > >> > > > > > > > > > Checked by AVG.
> > > >> > >> > > > > > > > > > Version: 7.5.405 / Virus Database:
> > > >> 270.8.0/1715 -
> > > >> > >> > > Release
> > > >> > >> > > > > > Date:
> > > >> > >> > > > > > > > 10/9/2008 12:00 AM
> > > >> > >> > > > > > > > > >
> > > >> > >> > > > > > > > >
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > > ------------------------------------------
----
> > -----
> > > >> -----
> > > >> > >> --
> > > >> > >> > > > > > ------
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > > > Internal Virus Database is out-of-date.
> > > >> > >> > > > > > > > Checked by AVG.
> > > >> > >> > > > > > > > Version: 7.5.405 / Virus Database:
> > 270.8.0/1715 -
> > > >> > >> Release
> > > >> > >> > > > Date:
> > > >> > >> > > > > > 10/9/2008 12:00 AM
> > > >> > >> > > > > > > >
> > > >> > >> > > > > > >
> > > >> > >> > > > > >
> > > >> > >> > > > > >
> > > >> > >> > > > > >
> > > >> > >> > > > >
> > > >> > >> > > > >
> > > >> > >> > > > >
> > > >> > >> > > > > --
> > > >> > >> > > > > Rob, Sue & Merlin Robinson
> > > >> > >> > > > > 94 WLWB
> > > >> > >> > > > >
> > > >> > >> > > >
> > > >> > >> > >
> > > >> > >> > >
> > > >> > >> > > ----------------------------------------------------
----
> > --
> > > >> > >> ------
> > > >> > >> > >
> > > >> > >> > > Internal Virus Database is out-of-date.
> > > >> > >> > > Checked by AVG.
> > > >> > >> > > Version: 7.5.405 / Virus Database: 270.8.0/1715 -
> > Release
> > > >> Date:
> > > >> > >> 10/9/2008 12:00 AM
> > > >> > >> > >
> > > >> > >> >
> > > >> > >>
> > > >> > >> --------------------------------------------------------
--
> > > >> -------
> > > >> > >>
> > > >> > >> Internal Virus Database is out-of-date.
> > > >> > >> Checked by AVG.
> > > >> > >> Version: 7.5.405 / Virus Database: 270.8.0/1715 -
Release
> > Date:
> > > >> 10/9/2008 12:00 AM
> > > >> > >>
> > > >> > >
> > > >> > >
> > > >> > > ---------------------------------------------------------
-
> > > >> ------
> > > >> > >
> > > >> > > Internal Virus Database is out-of-date.
> > > >> > > Checked by AVG.
> > > >> > > Version: 7.5.405 / Virus Database: 270.8.0/1715 - Release
> > Date:
> > > >> 10/9/2008 12:00 AM
> > > >> > >
> > > >> >
> > > >>
> > > >> ----------------------------------------------------------
> > -------
> > > >>
> > > >> Internal Virus Database is out-of-date.
> > > >> Checked by AVG.
> > > >> Version: 7.5.405 / Virus Database: 270.8.0/1715 - Release
Date:
> > 10/9/2008 12:00 AM
> > > >>
> > > >
> > > >
> > > > ----------------------------------------------------------
> > ------
> > > >
> > > > Internal Virus Database is out-of-date.
> > > > Checked by AVG.
> > > > Version: 7.5.405 / Virus Database: 270.8.0/1715 - Release
Date:
> > 10/9/2008 12:00 AM
> > > >
> > >
> >
> >
> > ------------------------------------------------------------------
------
> >
> > Internal Virus Database is out-of-date.
> > Checked by AVG.
> > Version: 7.5.405 / Virus Database: 270.8.0/1715 - Release Date:
10/9/2008 12:00 AM
> >
>