HELP - Need Quiet Muffler without sacrificing performance ... or Dynamat?

[Professor]

I know this is the opposite of the typical request. I have a set of Flowmaster Super 44 mufflers on the Marauder. It sounds great. I loved the old school muscle sound. In some ways I still do. Unfortunately, I have been diagnosed with a rare condition (Meneire's Disease) that affects my inner ear in a number of bad ways, including permanent loss of hearing in a very specific range and echo/resonance from certain other ranges of sounds. This means that my beloved Flowmasters produce a sound that makes it difficult for me to understand my passengers right at the frequencies of the human voice.

I love the car. It is my daily driver. An ugly option is to trade it for something that is ridiculously quiet (e.g. Lexus) ... but I don't want to do that. My question:

1) Can anyone recommend a free flowing muffler that is quiet (stock or quieter). I don't want to lose performance.

2) Has anyone noticed a significant difference in quietness from interior sound dampeners like Dynamat? Did you just put it under the carpet, or did it go under the rear seat and seatback, door panels, etc.?

Thanks!

[ctrlraven]

The cheapest and easiest route would be to get rid of the flowmasters and go with some Magnaflows. They will actually outflow the flowmaster mufflers (CFMs) while also being slightly quieter as cruising speed.

Flowmaster is a chambered muffler while the Magnaflow is a straight-thru design. Less air bouncing around in the muffler will equal resonating frequencies.

https://www.youtube.com/watch?v=Xhir2VIK-V4
Xhir2VIK-V4

[lji372]

+1 magnaflows

love'm

http://www.maxautosupplies.com/product.asp?itemid=5608&gclid=CjwKEAjw9qafBRCRiYrL4-fpuFkSJACvocQ1iAS4tPuhVQF-5RCJGqxitHbkMjv_cp0nT3MiN16-IBoCq7nw_wcB

[2,4shofast]

I run the Magnaflows as well, get a set of 18" mufflers. If that still isn’t quiet enough you can also put a magnaflow resonator on.

[fastblackmerc]

I know this is the opposite of the typical request. I have a set of Flowmaster Super 44 mufflers on the Marauder. It sounds great. I loved the old school muscle sound. In some ways I still do. Unfortunately, I have been diagnosed with a rare condition (Meneire's Disease) that affects my inner ear in a number of bad ways, including permanent loss of hearing in a very specific range and echo/resonance from certain other ranges of sounds. This means that my beloved Flowmasters produce a sound that makes it difficult for me to understand my passengers right at the frequencies of the human voice.

I love the car. It is my daily driver. An ugly option is to trade it for something that is ridiculously quiet (e.g. Lexus) ... but I don't want to do that. My question:

1) Can anyone recommend a free flowing muffler that is quiet (stock or quieter). I don't want to lose performance.

2) Has anyone noticed a significant difference in quietness from interior sound dampeners like Dynamat? Did you just put it under the carpet, or did it go under the rear seat and seatback, door panels, etc.?

Thanks!

Go back to the stock mufflers.

[Mr. Man]

The stock mufflers flow well. In fact the stock system flows fairly well. The choke point is right before the mufflers where the piping sizes down for some reason. Swap that section out with 2 1/4 X or H piping and your all set. Quiet, but free flowing.

[Limited360]

+1 magnaflows

love'm

http://www.maxautosupplies.com/product.asp?itemid=5608&gclid=CjwKEAjw9qafBRCRiYrL4-fpuFkSJACvocQ1iAS4tPuhVQF-5RCJGqxitHbkMjv_cp0nT3MiN16-IBoCq7nw_wcB


These FTMFW

[Marauderjack]

Magnaflow 18's and H-Pipe...problem solved!!:beer:

[lji372]

Magnaflow 18's and H-Pipe...problem solved!!:beer:

i have the 18's on blue n/a car. all bark zero bite=EPIC fail

[Limited360]

i have the 18's on blue n/a car. all bark zero bite=EPIC fail

Maybe it needs BOOST to get that bite? :mad2:


Seriously tho... go with the large Magnaflows... sound is ideal in my book.

[Jeronimojc]

Borla Pro XS mufflers and resonated tips. See this thread:
http://www.mercurymarauder.net/forums/showthread.php?t=91483


Sent from my iPhone using Tapatalk

[RubberCtyRauder]

Borla Pro XS mufflers and resonated tips. See this thread:
http://www.mercurymarauder.net/forums/showthread.php?t=91483


Sent from my iPhone using Tapatalk

I'm putting these on my boosted, kooks, xpipe car thus coming Monday. My magnaflows are too loud and drone with my set up. So I will see how it goes soon. Plus I am extending the tips out from under the car .

[TAKEDOWN]

Magna Flow might still be a bit loud, stock may be the way to go...

[stevengerard]

stock would be fine, doesn't look like you have a ton of mods anyway and the mufflers as others have said are not much of a restriction.

[71cyclone]

Go back to stock or Magna Flow XL [interior flapper valve ]

[Marauderjack]

i have the 18's on blue n/a car. all bark zero bite=EPIC fail

Then you must have put an X-Pipe in......raspy crap that sounds like a couple mad Hondas with "Fart Can"!!:rolleyes:

My Magnaflows are a little louder than when new but ALL sound is out back......NO DRONE.....JUST RIGHT!!:beer:

Sorry about your "EPIC fail"!!;)

[lji372]

Then you must have put an X-Pipe in......raspy crap that sounds like a couple mad Hondas with "Fart Can"!!:rolleyes:



My Magnaflows are a little louder than when new but ALL sound is out back......NO DRONE.....JUST RIGHT!!:beer:



Sorry about your "EPIC fail"!!;)


Only epic fail is n/a

Sounds good- but it's a poser therefore fail

[Limited360]

Only epic fail is n/a

Sounds good- but it's a poser therefore fail

Not to mention the shifts are rough in that beast :mad2:

[Marauderjack]

Only epic fail is n/a

Sounds good- but it's a poser therefore fail

Sorry......I didn't know that!!:(

[jwernatl]

You know I dropped the back cats with stock mufflers. Not to loud, not to soft. It really does give a nice low growl.

[champ1173]

I have the 14' Magnaflows, rear cat delete, and the stock exhaust tips extended about a 1/4 past the rear bumper. The rest is stock. Quiet as a church mouse ideling, nice rumbling while cruising, and bad ass full throttle! No drone either! At least, I haven't noticed any. I don't know, maybe that would be to much noise for ya. Though, I bet it's quieter than the Flowmasters

[89TxDPSstang]

I'm running Dynomax VT mufflers on my 89 Mustang. Drone free in the interior so I can have a conversation. It does let you know when you are accelerating.

Tom

[Sammich]

I don't know much about exhaust, but there is a ton you can do to make the car quieter inside (sound deadening). Dynamat is very good but expensive. There is also spray-on rubber(ish) noise canceling material. Places to put sound deadening would be under the carpet, in the trunk, in the doors, and under the roof.

[lji372]

I just noticed I have some stockers, if you wanna pay shipping they're yours

[sflrainmaker01]

I'm not sure if I have the 14" or 18" Magnaflows, but with the Kooks, Xpipe and Magnaflow front cats (only-no rear) and 3.5" non resonated tips, the car is loud at WOT and otherwise reasonable at other speeds. There is no drone at highway speeds, however, sometimes, it's a tough decision as to listening to the sweet sounds of the engine/exhaust or my favorite music! ;)


Now, the Mustang (in sig) has ceramic coated shorty headers, 2 chamber Flowmasters, high flow catted Hpipe and 2.5" front to back through stainless tips and that car has a ton of drone @ ~2000-2200 rpm. The rest of the time, though, sounds awesome! :D