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Muffler suggestions
#1
I've got stock duals and looking for some nice sound for the exhaust.
I have Magnaflow catbacks on my G8GT and love the deep low tones.
The problem is that I am not sure if it will sound the same with the Magnaflows with the 351 without all of the cats and resonators.
And hopefully no droning!

Any one with experience using Magnaflows chime in.

Also anyone that can suggest any other mufflers with the sound I am looking for?
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#2
I have 3 inch magna flow glasspack and all I can say is they sound amazing! I went with cherry bombs and hated them so I swapped to magnaflow. The sound is super low and deep. But, they have some drone issues. If you are worried about drone issues go with the dynomax VT muffler. You won't get the deep tone, but it will sound like a muscle car with no drone issues.

THE HOOFBEAT IS LOUDER THAN THE HEARTBEAT!!!!!
SINCE 1964


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#3
I guess i'm old but I still love the sound of flowmasters series 40
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#4
My favorite are "turbo" style muffler. I went with Hooker aerochamber's this time to be different. They sound like the turbos, but deeper... And they don't have the glasspackesk "blat blat" that I don't like about magnaflows, nor the "fart in a garbage can" tinny sound that flowmasters can have.




1973 Mach 1 Q code 351 4V, 9A paint, standard interior, 3.50 rear, C6 trans.
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#5
Sounds good Pat. I too am in the market for new mufflers.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
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#6
Is it normal for a 351C 2V to be super quiet? When I first got mine running I was astonished at how little noise it made. My resonator and muffler are rather well rusted out as well. Is the general thought to go to a dual exhaust set-up and run twin mufflers? Totalled, yours sounds simply amazing, that perfect muscle car gurgle, very nice choice!

2013 Ford Focus SE Flex Fuel 5spd - Daily Driver
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#7
http://www.spintechmufflers.com/

These used to be called Spintrap mufflers, but the original owners of Dr. Gas sold the rights to the guy that was actually building the mufflers for them several years ago. I have been running these since 94 and wouldn't consider using anything else on a muscle car. They are deep and throaty without a lot of droning. At idle they have a good rumble and actually smooth out at higher rpm.
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#8
I've heard that an X-pipe helps "mellow" the exhaust sound and usually eliminates the drone. Does anyone know if this is true?
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#9
The question of an x-pipe and reduced drone is very scientific in nature. The same physics for organ pipes come into play. The drone comes from the frequency of the pipe matching the harmonics of the engine frequency. The X-pipe puts a node in the overall length of the pipe and changes the pipe's musical note. The shortened length of pipe raises the frequency at which the harmonic tune begins to resonate. The other part of the equation is that there are naturally occuring notes in the pipes. So the pipe frequency could be a multiple of the base frequency. Like music notes repeating an octave higher or lower. So introducing a forced node via x-pipe may not change the rest or the natural repeating nodes.

An x-pipe may move the rpm at which the drone happens to a higher rpm. There are many factors with pipe diameter and legenth being the two big ones. A best case senario to eliminate drone completely is to introduce nodes at other points in the system so that the laminar frequency flow is disrupted into a shaken up non-repeating pattern; meaning no pattern at all.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
  Reply
#10
caspianwendell;128057 Wrote:I guess i'm old but I still love the sound of flowmasters series 40

+1

Jim

M code 71 Mach 1, 351 4V Cleveland, Ram Air (not factory), C6 Trans, 3.5 rear
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