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Re: DynoMax Mufflers [Re: Tom Hand] #733470
06/27/10 06:24 AM
06/27/10 06:24 AM
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan Offline
I Live Here
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I Live Here

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Posts: 10,847
Oakdale CT
Quote:



As soon as we get the whole system sealed and leak free, I will try to get some very good sound recordings to share along with the data we plan to collect. Should get measurements later this week.

Tom Hand




Thanks for the legwork Tom!

I saw these in the last Summit catalog, looks like an interesting twist on sound control.

Gary

383man [Re: gdonovan] #733471
06/27/10 11:38 PM
06/27/10 11:38 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
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Posts: 27,421
Balt. Md
I run the 3" Ultra-Flows and I love them. I always race with the pipes hooked up as I have never uncapped my 63 and they sound good. Much quieter then my boys Dart with Flow Masters and I can listen to my radio cruisin down the road. Ron




Last edited by 383man; 06/29/10 02:06 AM.
Re: DynoMax Mufflers [Re: Tom Hand] #733472
06/28/10 06:31 AM
06/28/10 06:31 AM
Joined: Jan 2006
Posts: 8,162
USA
3
360view Offline
Moparts resident spammer
360view  Offline
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Posts: 8,162
USA
Thanks for posting your experience with the VT series muffler so far,
and i for one look forward to info on what backpressure is required to open the spring loaded valve.

Didn't Nissan have a factory muffler that had an internal bypass valve?

Re: DynoMax Mufflers [Re: CompSyn] #733473
06/28/10 08:54 AM
06/28/10 08:54 AM
Joined: Jan 2003
Posts: 16,122
Grand Haven, MI
patrick Offline
I Live Here
patrick  Offline
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Joined: Jan 2003
Posts: 16,122
Grand Haven, MI
Quote:

Quote:

Tom, before you pop for the UltraFlo Welded, look into the new Dynomax VTs. You could run the 17956 and have a sweet sound, no drone, and plenty of noise at WOT. They really are pretty darn slick. We have three sets we are playing with right now.
And, there is rebate on them too so for $75 you get state-of-the-art technology, great sound, no drone, and all stainless steel body and tubes.
Tom




I plan on running Dynomax mufflers on my Road Runner. But I'm not sure I like the idea of a spring/back pressure operated butterfly valve in my muffler. I'm sure it works fine when new, but what happens if/when the valve corrodes shut due to condensation/soot? What happens if the spring/linkage breaks?



Just throwing it out there...




don't they have a lifetime warranty like other dynomax mufflers? if so, send 'em back and get a replacement for free...just went through this with my 17769 muffler that the case split on from corrosion.

I'd like to see a larger body VT series for even more stealthiness...if they made one in similar size to my 17769 I'd be tempted to replace mine...


1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
Re: DynoMax Mufflers [Re: TOMRR] #733474
06/28/10 01:37 PM
06/28/10 01:37 PM
Joined: Aug 2007
Posts: 1,819
Middle of A Field
O
OrangeProwler Offline
top fuel
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top fuel
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Joined: Aug 2007
Posts: 1,819
Middle of A Field
I have the 17533s on the Coronet and they sound great with the 318 and headers. Quiet driving around and not horribly loud at WOT. I have no resonance from them either.

Re: DynoMax Mufflers [Re: Dabee] #733475
06/29/10 07:13 PM
06/29/10 07:13 PM
Joined: Jan 2003
Posts: 1,013
LEE, MASS
T
TOMRR Offline OP
super stock
TOMRR  Offline OP
super stock
T

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Posts: 1,013
LEE, MASS
Quote:

Got-em on my Bee and love em!



I just put the DynoMax Ulta-Flows on my RR,They are Great
NO MORE flowmasters for me

Re: DynoMax Mufflers [Re: TOMRR] #733476
06/29/10 08:00 PM
06/29/10 08:00 PM
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem Offline
master
Dodgem  Offline
master

Joined: Mar 2008
Posts: 5,746
Ontario, Canada
I took me some time to convince Dabeast2 to put them on his Bee and another friend on his 496 67 Plymouth last year both thought they were a little loud first drive then they both swore they mellowed right out??

When I had mine installed a few years back guy that put them on for me (h pipe now an X pipe) said take it for a drive when I came back he was shaking his head. I said what. He says I cannot believe a 3" straight through mufflers can be that quiet. I said well that is what they advertise!!!

Re: DynoMax Mufflers [Re: Dodgem] #733477
07/29/10 09:13 PM
07/29/10 09:13 PM
Joined: Aug 2009
Posts: 121
Detroit, MI
kz5rt2 Offline
member
kz5rt2  Offline
member

Joined: Aug 2009
Posts: 121
Detroit, MI
I just thought I'd throw in my with some feedback/experience with the new Dynomax VT's. I was running a superstock setup with max wedge/superstock exhaust manifolds full 3" out the back X pipe and TTI tailpipes and had a terrible drone with flowmaster super 40 series (flowjunkers). I read all the forums about exhaust/drone and what I gathered was... I'd never be able to rid the drone with cast iron manifolds. Well... I can't say enough about these mufflers! The VT's took care of it all! No more drone/vibration, I can hold a conversation and listen to the radio! My girlfriend will ride with me in the car now, so that says a lot!

Anyway, to say the least I'm very satisfied! My father is running a 528" Hemi and has just ordered himself a pair as well.

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