How do dynomax mufflers sound

It's not to loud but still not over bearing. At 60mph it has has a nice rumble tone to it and you can still hear and talk inside the car. My friend just got a duster with flow masters. He can't hear himself think at idle or driving it is so loud. Needless to say, the flowmasters are going into junk pile.

Loud doesn't make horsepower, only noise. I posted below a chart of different mufflers with the decibel levels. I will also add that I am running the larger case "hemi" dynomax, for improved flow..

They fit a B or C body fine, I am not sure about A body.. The car picked up a ton of power from the repo factory style mufflers I replaced.. Hmm, cars must be alot louder inside then my truck.

Anybody that is going to throw away thier Flowmasters can send them to me. My truck has 3" exhaust with crossover, Super 40's and tailpipes way out the back, and long tube headers up front. When I did drive it on the street it was quite enough not to cause any unwanted attention, had a nice rumble, and nice sound at WOT. This however is a full size truck with 8' bed too.

Here is what is sounds like at rpms and a good load. The tailpipes point straight at the big chunk of steel behind my truck. Trailer puller, daily driver, 90 W CTD with smokin 5" stacks.

Off road truck 75 Dodge W 4spd 4x4 locked front and rear, twin disc clutch, E Pulling truck. Sound great, What kind of system do you have? Like your post I like them. Not too loud and not too soft. I guess they could be a tick louder at idle, but I don't care for flowmasters much. Here's a vid with the hood open in the garage and a walk around the car to the back.

My car. Ron you know that by the videos I have found the superturbos look to be more noisy really than the ultarflows but I think is more high pitch related than effective NOISE Db measuremenst covers all the audio bandwidth, BUT the mid frequency are the most disturbing to the human at same leves than lower frequencies.

So even getting same or more Db level on Ultraflows the lower frequency is less disturbing on them. With a Charger born in Chrysler assembly plant in Valencia, Venezuela. As I have had both on my car with an X-pipe, the ultraflows to me are quieter at cruising speeds. The straight through design vs.

Now I am referring to inside the car noise not exterior I am also working with 3" exhaust and IMHO,they are the best sounding muffs for Mopars. Leave the Flowmasters for the BBC and 5. I really appreciate the replies, I'm pretty sure I'll go with the super turbos they offer on the standard system.

So even getting same or more Db level on Ultraflows the lower frequency is less disturbing on them That's a very interesting point, the human ear can really on hear between - Hz, the test methods for sound pressure levels dBs usually measure all the way up to 20,Hz.

So it's very possible that mufflers could "appear" louder on a standardize chart, when in practice the opposite could be true. It's sorta like using a microscope to view a sign, then wondering why is appears fuzzy with just glasses.

It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt. Quote: They sound good. Be advised that the tailpies and type of tips change the sound pretty significantly too. While I was installing the electric cutouts, I have the tailpipe removed. It's a lot deeper of an exhaust note and is significantly louder.

Not much of a surprise there. I added a short piece of pipe and an oval megaphone after them to smooth out the harshness of the sound. It makes a big difference with and without the megaphones on in the uncapped sound quality. The coolness factor is off the charts.

The only differentiating factors are the dimensions. This model is just over 18 inches long with 3 inch pipe connections. The small size is designed to fit in areas where space may be limited.

All Race Bullet series mufflers have a tubular body that is constructed from welded aluminized steel for superior strength and corrosion inhibiting properties.

The straight through design allows the exhaust to breath improving horsepower and performance. Sound is controlled through fiberglass materials packed within the muffler and as a result, a deep race tone is produced that is 4 decibels quieter than stock. Nice rumble at idle, and a unique sound when cruising. At least to me, as I had been cruising Flowbastards in my other car for nearly a decade.

I prefer them much over the Flowbastards any day. Take the best that exists and make it better. If it doesn't exist, create it.

Accept nothing nearly right or good enough. I have the Dynomax Ultra flows, really like them. Here is a clip on youtube. Old Timer Offline Posts: 5, There's more to flowmaster then the 40 series My with 50 series suv mufflers through headers and 3 inch pipes out the rear.

Old Timer Offline Posts: 2, Here is a video of them right after installation. They got a bit louder after I broke them in. The smoke is from the burning off of the protective film on the mufflers. Junior Member Offline Posts: Tolerable at cruising and just plain mean when you open her up. Check this out, it kinda gives you an idea of the sound.

Quote from: 66chargertoy on October 21, , AM. Old Timer Offline Posts: 13, Here is my Ultra story Just took this video 15 minutes ago. Motor was still cold and didn't want to rev it up too much but you get an idea of what it sounds like now. Definitely loud and raspy.