Cheaper way to replace exhaust?

T

tmsnyder

Well-known member
Jan 15, 2014
3,351
1,241
113
Buffalo NY
I was thinking the same thing, just got mine a couple months ago and it could use an exhaust system.

The systems for sale to bolt in are priced only to where they would attach to headers I believe, the downpipes to go from the stock exhaust manifold
to the system are extra.
--
Todd Snyder, Buffalo NY
1976 Eleganza II
 
You are both in error....
The complete packages can be bought from either Applied or Sirum and both of those can supply for either header or stock manifold. I believe that
both can supply in stainless. While the cost is a little more, the system service life will be a lot longer.

If you want front mufflers or a rear muffler, I believe that both can supply.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
As mentioned above, buying an "exhaust kit" generally nets you a higher quality part, both in design and materials. These systems will often use
mandrel bends, metals or metal coatings designed to increase the longevity of the parts, v-band clamps or other high quality flanges to ease
disassembly, etc.

If you are looking for a more budget friendly option, taking your rig to an exhaust shop will (assuming the shop is good) net you a decent quality
exhaust. But you will generally get crush bends, more budget friendly materials... But it is absolutely a better option than dealing with a leaking
exhaust that is letting fumes into the cabin, is loud, etc.

Now you could also go the option of finding an exhaust shop that is more performance oriented... one with a mandrel bender, or that is set up to work
with stainless, etc., but the cost would then approach or surpass the bolt on kits offered by the vendors.

Final option would be to DIY it, but unless you are a proficient welder, it is not really a good option. Even if you are a proficient welder, have
all the tools, etc. it still is not generally a good option.

Having gone this route myself on more than one occasion, it is a ton of work... To do it right, you'll have the system on and off the vehicle many
times... And then of course if you put all that work in to it, you end up buying the best materials you can, which costs a lot... I don't do this
every day, so I generally make an error or 2, or revise the design (sometimes more than once) which leads to using even more materials... DIY is only
really an option if you are doing this as a hobby, or want something special on your vehicle.
--
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
 
Jody, which system were you looking at?

> You are both in error....
> The complete packages can be bought from either Applied or Sirum and both of those can supply for either header or stock manifold. I believe that
> both can supply in stainless. While the cost is a little more, the system service life will be a lot longer.
>
> If you want front mufflers or a rear muffler, I believe that both can supply.
>
> Matt


--
Todd Snyder, Buffalo NY
1976 Eleganza II
 
Generally, cheap ain't good, and good ain't cheap. Particularly when it
comes to exhaust systems. But IF YOU INSIST, be sure to err on the safe
side. Keep all exhaust system parts well away from the wood floors of the
coach. Several coaches have been burned to the lugnuts by fires started by
exhaust components located too close to the combustible floors. If in
doubt, fabricate heat shields, particularly over the tops of the mufflers.
It seems the lo quality versions get very hot, failing the internal
baffles, restricting the flow of exhaust gasses and building heat above
them. Just be super careful when doing any work on the exhaust system.
Jim Hupy
Salem, Oregon

On Thu, Jun 27, 2019, 8:43 AM Todd Snyder via Gmclist <

>
>
> Jody, which system were you looking at?
>
>
>
>

> > You are both in error....
> > The complete packages can be bought from either Applied or Sirum and
> both of those can supply for either header or stock manifold. I believe
> that
> > both can supply in stainless. While the cost is a little more, the
> system service life will be a lot longer.
> >
> > If you want front mufflers or a rear muffler, I believe that both can
> supply.
> >
> > Matt
>
>
> --
> Todd Snyder, Buffalo NY
> 1976 Eleganza II
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
A year ago I purchased a stainless steel exhaust system from Jim Kanamota at Applied.
His system is specifically design for our GMC’s. Installation was perfectly aligned with only a 10” cut at the makeup section.
There are some things are worth spending a little extra money and I have no worries for as long as I’m alive.... which by the way is a long time.

Gary Coaster / Reno, NV
1977 GMC Eleganza ll
GMC RV Day Night Shade Sales
GMCShades
www.GMCMotorhomemarketplace.com/GMC_Shades/

>
> Generally, cheap ain't good, and good ain't cheap. Particularly when it
> comes to exhaust systems. But IF YOU INSIST, be sure to err on the safe
> side. Keep all exhaust system parts well away from the wood floors of the
> coach. Several coaches have been burned to the lugnuts by fires started by
> exhaust components located too close to the combustible floors. If in
> doubt, fabricate heat shields, particularly over the tops of the mufflers.
> It seems the lo quality versions get very hot, failing the internal
> baffles, restricting the flow of exhaust gasses and building heat above
> them. Just be super careful when doing any work on the exhaust system.
> Jim Hupy
> Salem, Oregon
>
> On Thu, Jun 27, 2019, 8:43 AM Todd Snyder via Gmclist <

>
>>
>>
>> Jody, which system were you looking at?
>>
>>
>>
>>

>>> You are both in error....
>>> The complete packages can be bought from either Applied or Sirum and
>> both of those can supply for either header or stock manifold. I believe
>> that
>>> both can supply in stainless. While the cost is a little more, the
>> system service life will be a lot longer.
>>>
>>> If you want front mufflers or a rear muffler, I believe that both can
>> supply.
>>>
>>> Matt
>>
>>
>> --
>> Todd Snyder, Buffalo NY
>> 1976 Eleganza II
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Were the original down pipes from the exhaust manifold sized at 2.25 inches? After the Y, what size were they as they ran down the passenger side
frame?
--
Todd Snyder, Buffalo NY
1976 Eleganza II
 
2 1/2

On Tue, Jul 2, 2019 at 6:42 PM Todd Snyder via Gmclist <

> Were the original down pipes from the exhaust manifold sized at 2.25
> inches? After the Y, what size were they as they ran down the passenger
> side
> frame?
> --
> Todd Snyder, Buffalo NY
> 1976 Eleganza II
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Thanks Jim, were they 2.5 inches the whole way? Before and after the Y?

I think my downpipes are original, it is a California and Texas coach and based on the condition of the frame etc, it wouldn't surprise me if they are
the actual originals at 2.25".
--
Todd Snyder, Buffalo NY
1976 Eleganza II
 
They are all the way, but its more like 1 1/2" as they are bent the
standard way and not true Mandrel Bent, where the diameters are same as the
pipe.
Performance and mileage do improve going the right way.

On Wed, Jul 3, 2019 at 6:16 AM Todd Snyder via Gmclist <

> Thanks Jim, were they 2.5 inches the whole way? Before and after the Y?
>
> I think my downpipes are original, it is a California and Texas coach and
> based on the condition of the frame etc, it wouldn't surprise me if they are
> the actual originals at 2.25".
> --
> Todd Snyder, Buffalo NY
> 1976 Eleganza II
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
As I recall my coach was 2 1/4" on each side of the mufflers then 2 1/2" after the Y. I replaced the mufflers with walker 2 1/2" and a Jardine made 3
1/2" pipe after the Y the rest of the way.
--
Roy Keen
Minden,NV
76 X Glenbrook
 
Roy,
It was 3" as 3 1/2 cannot fit.
On my Twin Turbo Cad I had good exaust guy torch the frame to accept 4"
pipe.

On Wed, Jul 3, 2019 at 9:13 AM roy keen via Gmclist
wrote:

> As I recall my coach was 2 1/4" on each side of the mufflers then 2 1/2"
> after the Y. I replaced the mufflers with walker 2 1/2" and a Jardine made 3
> 1/2" pipe after the Y the rest of the way.
> --
> Roy Keen
> Minden,NV
> 76 X Glenbrook
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Thanks Jim guess my memory slipped a little as it was awhile since Jardine was supplying exhaust systems for the GMC Motorhome .
--
Roy Keen
Minden,NV
76 X Glenbrook
 
Roy,
I am way off, I tell people, $ 1,000 when it is only $ 100.
Comes with age.

On Wed, Jul 3, 2019 at 9:22 PM roy keen via Gmclist
wrote:

> Thanks Jim guess my memory slipped a little as it was awhile since
> Jardine was supplying exhaust systems for the GMC Motorhome .
> --
> Roy Keen
> Minden,NV
> 76 X Glenbrook
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
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