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Author Topic: Best sounding Muffler for 383  (Read 4039 times)

Jason Medhurst

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Best sounding Muffler for 383
« on: April 21, 2008, 08:30:40 PM »

I am interested in what everyone thinks about the best sounding muffler for my 68 Newport Convertible.  I would like to stay with a single outlet as it has right now.  Its a g code 2bbl 383.
Thanks for any help!
J
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1968 Chrysler Newport Convertible, 2002 Chevy Silverado Duramax 423RWHP, 1995 Fleetwood Brougham LT1, 2005 Ford Excursion 6.0 Diesel

Matt Aker

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Best sounding Muffler for 383
« Reply #1 on: April 22, 2008, 10:15:03 AM »

It's a matter of taste really.  The two C's I drove through the '90s had a Jeckyl and Hyde thing going on for them.
 
My '66 NYer ran full-bodied quiet Walker mufflers and there was almost no sound while in the driver's seat.  A slight rumble when standing between the pipes at the bumper.  This was Dr. Jeckyl
 
My '68 383 Polara was set-up with 14" Blue Bullets.  At idle and under normal driving it had a noticeable rumble and a nice tone but not obnoxious.  Jump on it though...   Mr. Hyde!  My nieghbors HATED that car when it was tune-up time.  My exhaust guy was a magician!  he asked me what I wanted from the Dodge and made it happen.
 
Moreover:  A good quality glass-pack will let the car talk a little without being rude to the folks next door.  Plus you can still put the top down and have a conversation with the Missus while driving.  It's the best of both worlds, a healthy sounding big-block and a happy wife!
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Brian

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Best sounding Muffler for 383
« Reply #2 on: April 22, 2008, 11:31:23 AM »

Well I'm bias to the Dynomax super turbo mufflers....I had a 2 1/2 inch dual set-up on my 70 sport fury with a 360 and will be getting the same set-up on my 68 T/C wagon.
 
I liked the muffler because they had a nice rumble while idling and cruising, not too loud though, but when you stomped on it they made a fair amount of noise.
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Brian

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Leaburn Patey

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Best sounding Muffler for 383
« Reply #3 on: April 22, 2008, 01:29:28 PM »

Rhino...loud and horny..
Walker...quiet and smooth..
Factory Hemi muffler Nice burble and not too loud.Quiet in the car.
I too am running Dynomax Super Turbo's
Flowmasters and  Magnaflows make a Mopar sound like a Chebbie SBC or a Phord 5.0L
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Jason Medhurst

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Best sounding Muffler for 383
« Reply #4 on: April 22, 2008, 06:52:19 PM »

I am not sure what you mean by makes it sound like a Chevy small block?  How should it sound differently?
 
Has anyone heard a dual 50 series Flowmaster or 40 series on a 383?
 
What about Magnaflows?
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1968 Chrysler Newport Convertible, 2002 Chevy Silverado Duramax 423RWHP, 1995 Fleetwood Brougham LT1, 2005 Ford Excursion 6.0 Diesel

Stitcherbob

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Best sounding Muffler for 383
« Reply #5 on: April 22, 2008, 07:26:02 PM »

Walker Dynomax Turbo  mufflers are patterned identical to Mopar's famed Hemi mufflers....that's why they sound perfect!
Every big block Mopar needs to sound like the Charger in "Bullitt"


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Brian

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Best sounding Muffler for 383
« Reply #6 on: April 22, 2008, 07:40:27 PM »

Quote from: jaystone6
 
Has anyone heard a dual 50 series Flowmaster or 40 series on a 383?
 
 
Flowmaster 40 series are WAY too loud...especially for a convertible...50 series are LOUD...buddy had both these on his 383 cars, and I can't say I liked the sound of either.
 
 
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Brian

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R. Dave Carr

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Best sounding Muffler for 383
« Reply #7 on: April 23, 2008, 07:09:57 AM »

After driving everyone else on this board crazy with exhaust questions, I'm having dual exhaust with Dynomax Super Turbos installed on my '66.   Go to Youtube, and enter "chrysler exhaust" in the search area, and listen to different peoples cars.carrman2008-04-23 12:11:06
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Snotty

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Best sounding Muffler for 383
« Reply #8 on: April 23, 2008, 10:07:19 AM »

I agree with Brian and prefer Turbos.  I have those on my Newport and think it sounds great.  I receive a number of compliments as well.  I had Flowmasters on my New Yorker and liked it for a day.
 
Under excelleration it did sound like a Ford or Chevy.  Listen to a newer mustang with FMs on it; that's what your Chrysler would sound like.
 
I have never liked glasspacs; they "pop" on decelleration and get very heavy under your car because they retain condensation.
 
Of course, all of our comments are based on personal likes and dislikes.  It's really up to what you like.  Go to a show and listen to some cars.  If you find a few that you really like ask them what they're using.
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Leaburn Patey

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Best sounding Muffler for 383
« Reply #9 on: April 23, 2008, 03:51:37 PM »

440 with TTI 2-1/2" system Dynomax Super Turbo's
Click on various vids for different rang of sounds.
http://s51.photobucket.com/albums/f385/68Cbarge/?mediafilter=videos
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Johnny D.

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Best sounding Muffler for 383
« Reply #10 on: April 23, 2008, 05:52:16 PM »

my preference has been cherrybombs, but tommorow its gettin a stock 1971 chrysler 300 muffler... from 71.

we'll see how that goes.


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Jason Medhurst

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Best sounding Muffler for 383
« Reply #11 on: April 23, 2008, 06:15:47 PM »

Ok,
just installed two Dynomax Super Turbos, H pipe, and new exhaust back from the stock manifold down tube.
 
Sounds good when standing next to the car.
 
When driving at buolevard speeds, there is a really loud hum, almost like a straight six with open headers.  Once I gun it, or speed up alot more, it goes away.
 
HELP PLEASE!  It is an awful drone.  Could it be that the two lines are made exactly the same on both sides causing a standing wave inside the car.  This was with my top down too.  Any help is greatly appreciated.  I was going to contact Dynomax for help also.
 
Thanks
jaystone62008-04-23 23:29:52
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Herman

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Best sounding Muffler for 383
« Reply #12 on: April 23, 2008, 11:40:45 PM »

I also had the Dynomax mufflers under my '65 Convertible. I didn't like the stationairy drone either so I took them out.
Part of the drone-problem is perhaps the fully seperated exhaust pipes. Should you put an H or X-pipe in the system the sound will be toned down most likely.
I still have seperated pipes aswell and will be installing an H-pipe in the near future I think.

My '65 convertible now sports a set of 50series Flowmasters, which I hoped would give a similar sound as the ones under my '62 Wagon, which sound real nice.
But the new Flowmasters make more noise than the Dynomax mufflers, mainly because they are still clean inside. The ones on my wagon are mostlikely full of carbon-deposits which tamedown the noiselevels I guess.



Jason Medhurst

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Best sounding Muffler for 383
« Reply #13 on: April 24, 2008, 05:47:38 AM »

I just spoke with Dynomax.
 
They told me the drone or hum is coming from a flow problem at low RPM's.  They said that I should either try using a 2.5" pipe rather than the 2.25" that I used (right!) or move to a higher flowing muffler.  They recommended the Ultra Flow..  They said its louder outside, but I should see less cabin resonance.
 
I am going to ask my exhaust guy what he thinks today.  I might go with the Flowmaster or Magnaflow that I really have never had resonance issues with. 
 
I told them I bought this muffler due to the picture of the 68 300 Convertible on their web site, and asked them what that had installed.  They didn't know!  Strange.
jaystone62008-04-24 10:48:02
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1968 Chrysler Newport Convertible, 2002 Chevy Silverado Duramax 423RWHP, 1995 Fleetwood Brougham LT1, 2005 Ford Excursion 6.0 Diesel

Snotty

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Best sounding Muffler for 383
« Reply #14 on: April 24, 2008, 09:51:54 AM »

If it's just at certain speeds, don't drive those speeds!!! 
 
I have 2.5" pipes and no crossover and don't have that problem.  There is a rather large harmonic at 40 MPH, so I don't drive 40. 
 
I had 2.5" exhaust with Flomasters and crossover on my '62.  The harmonic was terrible from 30-65!!  After 65 the car was actually quiet.  But it was due to all the other noise that I will not use FMs anymore.
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