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... mufflers #1434360
05/11/13 09:31 AM 05/11/13 09:31 AM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
C
can.al Offline OP
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can.al  Offline OP
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Ontario.Canada
..what are the quietest performance mufflers?
Re: ... mufflers [Re: can.al] #1434361
05/11/13 10:54 AM 05/11/13 10:54 AM
Joined: Jan 2003
Posts: 21,067
Niles , Ohio
T
therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,067
Niles , Ohio
NAPA used to have Hemi replacement mufflers.I had them on the 65.Now I run Summits stainless.They arent factory quiet but not loud.They are just mellow but they have a sweet sound when you get into the go pedal.That and they never rust.Rocky

Chrysler Firepower
Re: ... mufflers [Re: can.al] #1434362
05/11/13 11:47 AM 05/11/13 11:47 AM
Joined: Jan 2003
Posts: 5,186
Wherever I am.
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Junky Offline
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Wherever I am.
Quote:

..what are the quietest performance mufflers?


Quiet and Performance = Oxymoron

2010 Black Challenger SE <> 3.5 V6
Custom Shift Knobs www.flameball.com Check It Out
Re: ... mufflers [Re: Junky] #1434363
05/11/13 12:35 PM 05/11/13 12:35 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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can.al Offline OP
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Ontario.Canada
..i have been told the Cadillac mufflers were very quiet and high flow.
Re: ... mufflers [Re: can.al] #1434364
05/11/13 12:40 PM 05/11/13 12:40 PM
Joined: Feb 2007
Posts: 2,578
sweden
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1Fast340 Offline
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1Fast340  Offline
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Quote:

..what are the quietest performance mufflers?



please give us alitle more to go on here. what kind of car,how is it used,enginespecifications,headers,pipesize,where does your exhaust end any crossover?
Re: ... mufflers [Re: 1Fast340] #1434365
05/11/13 12:47 PM 05/11/13 12:47 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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can.al Offline OP
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..'69 Dart,stock 8.5:1 340 and thinking 2 1/4" exhaust
Re: ... mufflers [Re: can.al] #1434366
05/11/13 02:42 PM 05/11/13 02:42 PM
Joined: Feb 2007
Posts: 2,578
sweden
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1Fast340 Offline
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1Fast340  Offline
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a basicly stock lowcompression 340 with 2 1/4" pipes will probably like some dynomax superturbo mufflers,pretty quiet but with alitle rumble like a musclecar should sound.

Re: ... mufflers [Re: Junky] #1434367
05/11/13 02:51 PM 05/11/13 02:51 PM

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Quote:

Quote:

..what are the quietest performance mufflers?


Quiet and Performance = Oxymoron

My Buick Grand National was whisper quiet. Quickest car built back in '87.
Re: ... mufflers #1434368
05/11/13 03:11 PM 05/11/13 03:11 PM
Joined: Jan 2008
Posts: 4,255
Canada
WO23Coronet Offline
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WO23Coronet  Offline
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Canada
Quicker yet if you got rid of the stock quiet exhaust
Re: ... mufflers [Re: WO23Coronet] #1434369
05/11/13 03:37 PM 05/11/13 03:37 PM
Joined: Jan 2003
Posts: 1,374
Houston,Tx.
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Lee446 Offline
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Houston,Tx.
The turbo quiets it down a bunch also. To the OP, like said, pipe size has a lot to do with it. Generally a 2-1/4 muffler is quieter than a 2-1/2, a 2.5 is quieter than a 3" in the same application. an X pipe changes the tone and seems a bit quiter than an H-pipe that tends to deepen the tone. Like most things, there is no single answer.
Re: ... mufflers [Re: Junky] #1434370
05/11/13 03:58 PM 05/11/13 03:58 PM
Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles Offline
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West Plains, MO
Quote:

Quote:

..what are the quietest performance mufflers?


Quiet and Performance = Oxymoron



Well.... you can have quiet, performance, small size. Pick any two!

I'm wondering what to use on my '72 Dart 451. So far I have headers and a 3" Summit X-pipe. There is now a fuel cell in the trunk so all that space underneath (where the stock tank used to be) is available.
Re: ... mufflers [Re: DrCharles] #1434371
05/11/13 05:49 PM 05/11/13 05:49 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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can.al Offline OP
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..i'm thinking no one feels their muffler is quiet!
Re: ... mufflers [Re: can.al] #1434372
05/11/13 06:05 PM 05/11/13 06:05 PM
Joined: Feb 2007
Posts: 2,578
sweden
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1Fast340 Offline
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1Fast340  Offline
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Quote:

..i'm thinking no one feels their muffler is quiet!



like i said,for your application some dynomax superturbos will be the quietest best flowing muffler you can find anything quieter will restrict power and anything more open will be louder but not gaining any more power.

i have over 10years of experience in the exhaust bussines and helping someone with a mufflerchoice is difficult to say the least but i feel confident you would like these mufflers

Re: ... mufflers #1434373
05/11/13 06:47 PM 05/11/13 06:47 PM
Joined: Nov 2007
Posts: 21,822
Kirkland, Washington
Pacnorthcuda Offline
Too Many Posts
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Posts: 21,822
Kirkland, Washington
Quote:

Quote:

Quote:

..what are the quietest performance mufflers?


Quiet and Performance = Oxymoron

My Buick Grand National was whisper quiet. Quickest AMERICAN car built back in '87.



Fixed it for ya!

Re: ... mufflers [Re: can.al] #1434374
05/11/13 07:41 PM 05/11/13 07:41 PM
Joined: Jul 2007
Posts: 271
MO, USA
Tom Hand Offline
enthusiast
Tom Hand  Offline
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Posts: 271
MO, USA
All our performance testing and sound testing indicates that the large case Dynomax Super Turbo "Hemi" style is best. 2.5" in and out, offset-center 17748; and the 2.5" in and out offset-offset 17749. Flow well and sound good and are pretty darn quiet. Some resonation will be present depending upon engine and tailpipes, and crossover style but overall, these are some of the best.
Tom Hand
Re: ... mufflers [Re: Tom Hand] #1434375
05/11/13 08:43 PM 05/11/13 08:43 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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can.al Offline OP
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can.al  Offline OP
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Ontario.Canada
Tx Guys..i'll find someone who's running super turbos on a 340.
Re: ... mufflers [Re: can.al] #1434376
05/12/13 10:03 AM 05/12/13 10:03 AM
Joined: Mar 2005
Posts: 3,140
Central NC
gch Offline
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gch  Offline
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Posts: 3,140
Central NC
The hemi super turbo mufflers quiet my 496 quite well.You could also try the dynomax VT muffler for the ultimate in cruise quiet until you hammer it.

http://www.dynomax.com/mufflers.php?muffler=vt
Re: ... mufflers [Re: gch] #1434377
05/16/13 12:33 PM 05/16/13 12:33 PM
Joined: Nov 2004
Posts: 376
East Central Illinois
jeff57 Offline
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jeff57  Offline
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Posts: 376
East Central Illinois
30 yrs in muffler bizz, i have tried em all and dynamax is what i put on my 69 dart\340 4spd.very good. jeff57
Re: ... mufflers [Re: jeff57] #1434378
05/16/13 05:14 PM 05/16/13 05:14 PM
Joined: Jan 2003
Posts: 2,931
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Paul_Fancsali Offline
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DYNO MAX is the best quiet wise Thrush welded is a lot louder but not too bad

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