Home » Public Forums » GMCnet » Exhaust/Muffler work in Santa Rosa, CA
| Exhaust/Muffler work in Santa Rosa, CA [message #219580] |
Thu, 22 August 2013 22:38  |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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Senior Member |
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I can highly recommend Johnny Franklins Mufflers, 1340 Santa Rosa Ave., 707-546-7751, in Santa Rosa, CA. Frank, the owner, owned a GMC and has installed headers and exhaust systems on several of them. Bob, his son, guided the process of installing my headers, mufflers and pipes, and their skilled staff dealt with several problems created by a PO which I'm glad I didn't have to handle in my garage. Thanks also to Jim K for having Thorley headers in stock for us!
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: [GMCnet] Exhaust/Muffler work in Santa Rosa, CA [message #219582 is a reply to message #219581] |
Fri, 23 August 2013 01:34  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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When you have a muffler shop bend mufflers. it can be cheap, but the
restriction at the bends uses up most of the gain of the headers.
That is why our pipes are Mandrel bent and has no kinks like the muffler
shop jobs.
Nothing wrong with a standard, but one does not gain any performance or
mileage.
On Thu, Aug 22, 2013 at 9:19 PM, Larry Davick <ljdavick@comcast.net> wrote:
> Jack,
>
> Did you go with dual mufflers, as stock, a 2 to 1 muffler like Arch did,
> or the rear muffler like Jim sells?
>
> Larry Davick
> A Mystery Machine
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: Exhaust/Muffler work in Santa Rosa, CA [message #219635 is a reply to message #219580] |
Fri, 23 August 2013 15:36 |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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Senior Member |
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I went with the original configuration. I had two excellent Flomaster mufflers that I wanted to keep. Bob told me it would be noisier with the headers and suggested I might want to change them, but I decided to try it out. It's definitely noisier with the headers and I might take Bob's advice and change the mufflers.
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: [GMCnet] Exhaust/Muffler work in Santa Rosa, CA [message #219885 is a reply to message #219635] |
Sun, 25 August 2013 15:46 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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If it’s louder out the tailpipe how about adding a small resonator at the back of the coach. If it’s louder at the engine, well...
Larry Davick
ljdavick@comcast.net
On Aug 23, 2013, at 1:36 PM, Jack Christensen wrote:
> I went with the original configuration. I had two excellent Flomaster mufflers that I wanted to keep. Bob told me it would be noisier with the headers and suggested I might want to change them, but I decided to try it out. It's definitely noisier with the headers and I might take Bob's advice and change the mufflers.
> --
> Jack Christensen - K6ROW,
> '76 Glenbrook/Clasco - "The Silver Bullet",
> '65 Clark Cortez,
> Sebastopol, CA
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Exhaust/Muffler work in Santa Rosa, CA [message #219891 is a reply to message #219885] |
Sun, 25 August 2013 16:56 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Larry,
Most people have the shorter mufflers that are loud.
Our kit with duel mufflers are quiet.
Our single rear muffler is little loud, but only at the tail pipe.
Inside is quiet as these mufflers we use are heavy gage metal and do not
Drum like the lesser units.
Reps from the muffler co. tell us that more volume a muffler has, quieter
it will be.
On Sun, Aug 25, 2013 at 1:46 PM, Larry Davick <ljdavick@comcast.net> wrote:
> If it’s louder out the tailpipe how about adding a small resonator at the
> back of the coach. If it’s louder at the engine, well...
>
> Larry Davick
> ljdavick@comcast.net
>
> On Aug 23, 2013, at 1:36 PM, Jack Christensen wrote:
>
> > I went with the original configuration. I had two excellent Flomaster
> mufflers that I wanted to keep. Bob told me it would be noisier with the
> headers and suggested I might want to change them, but I decided to try it
> out. It's definitely noisier with the headers and I might take Bob's
> advice and change the mufflers.
> > --
> > Jack Christensen - K6ROW,
> > '76 Glenbrook/Clasco - "The Silver Bullet",
> > '65 Clark Cortez,
> > Sebastopol, CA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Exhaust/Muffler work in Santa Rosa, CA [message #219953 is a reply to message #219876] |
Mon, 26 August 2013 06:41 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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My 23' coach came with a set installed. I've had zero problems with them. Sound nice, but not loud.
--johnny
'76 23' transmode norris
'76 'Palm Beach
--------------------------------------------
On Sun, 8/25/13, Jim Kanomata <jimkanomata@gmail.com> wrote:
Subject: Re: [GMCnet] Exhaust/Muffler work in Santa Rosa, CA
To: gmclist@temp.gmcnet.org
Date: Sunday, August 25, 2013, 5:26 PM
That is old wife's tale that the unit
is going to be louder with headers.
It might sound louder because of the pulse.
Also that the headers will cause the engine compartment to
be much warmer.
All or the headers we supply all the GMC vendors originate
from here and
they all have ceramic coating.
Spreading false information is whats happening.
On Fri, Aug 23, 2013 at 5:04 PM, David H. Jarvis <jarvis210@shaw.ca>
wrote:
>
>
> How do they bend mufflers?
> --
> "I've always been crazy, but it kept me from going
insane"
> _______________________________________________
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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