Which "Quiet" Mufflers

[stepn67]

Okay, I know not another "What Mufflers Should I Use" thread, but what I'm looking for is a quiet muffler which is the least restrictive. I'll be running my pipes exiting at the steps (short stepside) in fornt of the rear wheels, but want it to be reasonably quiet without a ton of restriction. Any reccomendations?

[crazy longhorn]

Originally Posted by stepn67

Okay, I know not another "What Mufflers Should I Use" thread, but what I'm looking for is a quiet muffler which is the least restrictive. I'll be running my pipes exiting at the steps (short stepside) in fornt of the rear wheels, but want it to be reasonably quiet without a ton of restriction. Any reccomendations?

Dyno Max Superturbo's (14" body)are hard to beat for the money. If you run an H pipe in the system, you should get a nice mellow note cruising......but it will be throaty when you stand on the "loud peddle) For super quiet, you might look at the Hemi turbos(18" body). best of luck, L

[Orange]

I agree with crazy longhorn - the Dynomax Super Turbo or the heavier version. That's what I was thinking before coming in here and reading his response.

DLB

[Olden Days]

I dont care for loud exhaust either. I am going with flowmaster 70 series and an H pipe when I get around to doing the exhaust. They have a nice throaty tone without being obnoxious.

[TierAngst]

Flowmasters don't flow for crap just fyi, if you're in it just for the sound then they're great. I've got dual 2.5 with crossover on my 92 wagon with 350 and running magnaflow straight throughs. They're very quiet for being one of the highest flowing mufflers on the market, I did a lot of research before choosing them and was in your same situation.

[piecesparts]

I would argue the Flowmaster flow compared to certain models of the magnaflow. I have had both on the same truck and the
Flowmaster improved the flow on it. I also went through two of the Magnaflows in about two years time for each of them. You have to buy the really high dollar ones to get the quality, and possibly the better flow characteristics.

The magnaflows were quiet and sounded good on the road, though.

[jimfulco]

Dynomax "Hemi Super Turbo" muffler is pn 17749 for a 2-1/2" inlet/outlet model that has a 20"-long case. It's good for ~380hp in a dual system, and it's real quiet under normal running, and just a little louder than stock at WOT. An X-type crossover before the mufflers tends to soften the noise a bit, also.

pn 17747 is a similar unit with 2-1/4" in/out.

[stepside454]

Yep, Ive got a pair of 2.5" Dynomax Super Turbos behind my 454 , I love em. Had 50 Series FLowmasters @ one time, hated em, & It performs better with these Turbos anyway. The Hemi Super Turbos are quieter yet.

[Olden Days]

I am willing to sacrafice some flow for quieter.
Here is something I found on the web for what ever its worth.

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.

[stepside454]

Nice list, wish it was more detailed, they dont say what Flowmaster they tested, also doesnt show any turbo mufflers

[Orange]

Originally Posted by Olden Days

I am willing to sacrafice some flow for quieter.
Here is something I found on the web for what ever its worth.

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.

If you can afford the Borla's - then get them.
I wish I could have a Borla exhaust...ahhhhhhhh.

[cdowns]

i've always just used the generic $20 turbo mufflers from the chain stores without much problems