Call me old if you want, but I like to hear my music with the motor running. I can't hear it unless I crank the volume way up, and every now and then, I like to have a conversation with my passenger without raising my voice. What I have on there now are Dynomax Super Turbo straight through mufflers. I chose them because they offer little restriction. Anybody recommend anything quieter that doesn't choke my 383? Car is wrapped in Dynomat , which helps a little but not alot. Thanx

 

Magnaflow? I can talk in my car with the top up. Wife seems to think it's fine vs the Flowmasters that were on the car.

 

Do you have headers? Since they add to the sound level that can make a difference in what muffler you might like.

 

Magnaflows are straight thru also. The hell with music-let them pipes roar!

 

I have an x-pipe system that seems to mellow it out at idle, but not at cruising speed. The only thing I know to be quieter is a stock style glass pack. Maybe somebody makes that with enough flow.

 

+1
They're mild and then get a nice growl in the midrange when getting on it!

 

You know the saying " If its to loud your to old!"....Just kidding.Magnaflow are pretty mild .

 

I thought Dynomax Super Turbo's were the quietest performance muffler out there?

Walker Quiet FLows maybe? I dunno

 

Super Turbos are not straight through - they tend to be pretty quiet, but one set I had droned like a ****.

Maybe you should trade mufflers with this guy: https://www.corvetteforum.com/forums...r-options.html

 

id use the walkers or dynomax personally
mufflers dont really make that big a difference in performance as youd think choose by sound
If you have headers and are moving more air through the motor you will have more noise period

 

Sounds like the mufflers you want are the Monza Turbos with dual 2 inch tips which I have and are no longer being made. These mufflers were chambered, not straight through, with fiberglass surrounding the tips and a 2.5 inch offset going into the muffler and center 2.5 inch outlet. They are not straight through with the pipe offsets slowing the gases mildly (and lower the sound in all rpm ranges) but not restrictive-233 RWHP with stock L-82 with a weak #6 cylinder and 2.5 duals. I am always surprised that they were not that popular, probably since they do not have a stock muffler look.




As others have stated, the power of the engine greatly effects the sound of the same muffler on different engines. The same Monza Turbos on the built 355 L-82 with 10.2:1 compression and roller cam/AFR heads (.525 lift) are much louder than on the stock L-82 (no LTH headers yet...shorties currently) but not offense or obnoxious. These mufflers have a more European sound..smoother not motorboat type sound...easy to talk at lower rpms but serious at high rpms and throttle position. Long Tube Headers make any engine louder since they flow MUCH more air...My shorty Headers made the stock L-82 louder with no other changes at the time...same exhaust pipes and Mufflers.

As for other mufflers, the magna flows are STRAIGHT through mufflers...there is no way that they are quiet...straight through mufflers cannot be. Forum member Karol has the CC magna flow 2.5 inch duals on his stock 78 L-82 (stock manifolds)...they are louder than my built L-82 355 425 HP motor with monza turbos and shorty headers. Not sure why people say that they are quiet. As long as you don't have cats, the magna flows will have some tone.

I do have 2.5 magna flow cat back system on my 2001 pontiac grand prix 3.1 V6 and even with a magna flow resonator as part of the system with the stock cat, I had to add a chambered resonator to quiet it down. So far the perfect system to me has been the magna flow cat back 2.5 system, magna flow X pipe with 4 high flow cats, and BBK shorty headers on my 94 5.0 Mustang GT convertible....reasonable sound level under normal driving...screams at WOT.

The Dynamo Super Turbo is a CHAMBERED muffler. Dynomax Ultra Flo is the straight through muffler and probably seriously loud.

Hope that helps!

 

I have Hooker Super Comps and a X pipe. What type of Magnaflows are you guys talking about?

 

I apologize, they're Dynomax Ultra flow mufflers in 2 1/2"

 

Brian, the Magnaflows have the same basic design as the UltraFlos and the sound level would be pretty similar. You may actually want what you thought you had- the Dynomax Super Turbo. Here's a link that shows their selection and they also have some sound comparisons there. The engine they use sounds mild and probably doesn't have headers but it gives you something to compare to. Their VT is probably pricey due to the design but it's said to be drone free and drone may be what's bothering you about the UltraFlos.
http://www.dynomax.com/mufflers

 

Maybe electric cut offs?

 

Look into the Dynomax VT, under normal driving they are quiet and open up with increase in back pressure

 

Thanks for the info - I'm going to check out the VT's . Super Turbos sound good, and according to the reviews on the site, people tend to say it's mellow when just driving, but when they hit it, it screams.

 

My wife had a '79 C-3 with the standard engine, (L-48?), and her younger brother decided to "dress it up" for her, and put a pair of similar mufflers on it, back in the early 80s. I think that they were made by ANSA, and they too, are no longer made. They had a nice growl, but without being obnoxious.

 

Easy decision: Dynomax Super Turbos. Mine have lasted over 10 years and only time they are LOUD is when I mash the go-pedal and things get crazy

 

Definitely Dynomax Super turbos. Quiet and not too terribly restrictive...(for a turbo muffler anyway).


Usually the Ultraflows are pretty quiet. You could also try the Pypes Race Pros but they will likely sound very similar to the Ultraflows..same design.

I have the Hooker Aerochambers and I also have a full stereo system/Dynamat everywhere etc.. All in all, it's fairly quiet, I can easily carry on a conversation with the wife.. Only time it's loud inside the car is around 1800 rpms (40 ish mph) it does drone just a little right there... Still not overly loud but you do notice it. Mine is 3" with an x pipe so the larger pipes may cause the drone. At freeway speeds, I have no drone and the car is quiet inside.

Dynomax Super Turbos are gonna be your best bet. Quieter then that, you'll need some larger frame mufflers like the Dynomax "Hemi" mufflers. They are a lot longer and very quiet. May be tough to fit them up in there tho.