How much quieter is the 50 series? Would it simply be quieter, but still 'loud'? Or would the inside of the car *actually* be quieter, to the point that conversation and the radio could be heard with noticeable improvement? This would be on a slightly built Slant with Clifford headers, Offenhauser intake and 4bbl Edel. Any info would be great. In the near future I'm looking to tone down a loud Valiant into more of a sleeper, but I have to know if a quiet interior would be remotely possible before really putting any bucks on it.

At the end of the day, is there a good performance muffler that would allow for a good, quiet interior, or am I seeking the fountain of youth?

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-Anthony
1962 Plymouth Valiant Signet 200

I have yet to find the elusive muffler you seek. I just use larger-than-stock, stock-type mufflers and get my extra-flow-with-quiet that way.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I run a stainless 60 series on my work truck (Vortec EFI SBC,headers)

The truck is quiet inside and at moderate throttle ,,,,and way loud at WOT. 3" inlet/outlet ......$160

I would not use a 40 on anything

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Yeah....Im the one who destroyed this rare, vintage automobile.....

Flowmasters sound like ass anyway (or a flock of ducks farting). Go with Dan's suggestion or a Walker Dynomax Super Turbo

I'm actually looking to replace 2 40's we had put on several years ago. =) They sound ok, just obnoxious. I'm just at a point where I no longer want the loudest car around, and would rather hear my music haha. Getting a quiet muffler going is one of the first things I want to attend to when I get the Valiant back.

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-Anthony
1962 Plymouth Valiant Signet 200

Dan has good advice. I followed his advice with my brother's van and I am very happy. I wanted a free flowing but quiet exhaust and ended up using a Walker Quiet-Flow muffler designed for a 90s era 318 in a dodge truck. My brother's van now is quiet but has good flow.

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Casually looking for a Clifford hyperpak intake for cheap.

If you want quiet Dan is right.

If you want quiet you dont want a Flowmaster anything.

I have a generic "Turbo" muffler on the Valaint....plenty loud (Im 56) ....no drone.

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Yeah....Im the one who destroyed this rare, vintage automobile.....

i have a 50 series on my dart with 4bbl, small cam, clifford shorties and i get no drone and have no problem talking on my cell phone or to the person next to me. i think it has great sound and a lot of people mistake it for a small block. my exhaust merges at the firewall and runs through 2.5" pipe all the way to the bumper. another thing that might make a difference is that my muffler is a center in/center out instead of the offset inlet and outlet it should be.

either way, i like the sound of mine and would recommend it to others. mine was given to me by my brother which explains the incorrect application.

zedpapa

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1970 dodge dart w/225 /6 bored .040" over, holley 390cfm w/vac. sec., compcams 252s, clifford shorty headers w/2.5" exhaust w/flowmaster, f-body 11" front discs, aluminum A-833OD, 8 1/4 w/3.21 SG
soon to have 5 gears!!!

Flock of ducks farting lol

I have a flowmaster on mine, don't know which series but I think it sounds really nice for a slant. It has a pretty deep throaty sound to it and its not too loud. It's not quiet but it's not nearly as loud as my cherry bomb. Now THAT sounded like a flock of ducks farting

http://www.youtube.com/watch?v=pTrcjWtk0w0&NR=1
I like this sound, but am worried about what it sounds like @ higher rpm's going down the road. Who's car is this? or does anyone else have something similar? I just don't want my truck to sound like the local kids civics. (I'm adding headers or dutra duals, cam, headwork etc.)

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for profiles and pictures of my mopars--> http://www.fquick.com/dietz_diggler

Yep, sick of the civic sound too...I love the sound of that slant, clifford headers, true dual exhaust with flowmaster 40's is what I think I will get, just like that mean slant!

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-1972 Valiant-

'72 Valiant

I'd like to see/hear a video of a similar set up with a car at speed, a drive by pass. If anyone sees one on Youtube or an equivalent please post it or send me a PM with a link. I'd like to do a good exhaust but am still not sure which way to go. I like the blue duster video, it sounds good but I would still like to hear a pass w/ the engine spinning around 3 grand.
Any help would be appreciated. Thanks
Dietz

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for profiles and pictures of my mopars--> http://www.fquick.com/dietz_diggler

A set of Factory Hi- Performance 340 Mufflers sound nice and flow very well. They are quiet for a couple of weeks and deepen with age. They have nice deep mellow tone.

2.5 into a 40 flowmaster turned down infront of the axle, A tad more than 3 grand........
http://media.putfile.com/Duster-vs-Dodge-Hemi-Ram-1500

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Even in moderation i am excessive!

thanks!

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for profiles and pictures of my mopars--> http://www.fquick.com/dietz_diggler