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comments and opinions on a dynomax ultraflow dual in/dual out muffler

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Old 02-26-2007, 09:27 AM
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Default comments and opinions on a dynomax ultraflow dual in/dual out muffler

hey guys im thinking of getting the dynomax ultraflow dual in/dual out muffler for my true dual system, mainly to get rid of some interior noise and drone/rasp. I was told that this muffler would help all of that. Comments and opinions on this is greatly appreciated.
Old 02-26-2007, 07:04 PM
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going up!
Old 02-26-2007, 07:18 PM
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Dnyo max makes great parts i've not seen too much about them atleast in the box form like you are speaking of used on ls1s. But as far as fit and finish and flow, i've never seen any problems with them.

I'd like to see pics of the setup when done, almost no one has box muffler duals on these cars.
Old 02-26-2007, 07:52 PM
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+1, i would like to see pics also
Old 02-26-2007, 08:31 PM
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yeah i thinkin of switched out my bullets for this setup, but want opinions and comments first. Kinda scared of fitment, hp loss( if any), etc.
Old 02-26-2007, 11:14 PM
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I've got the magnaflow dual in dual out.. 3" true duals



http://media.putfile.com/roys-dyno
Old 02-26-2007, 11:18 PM
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thats through 3" magnaflow cats(and a blown motor-valve spings going) and an x pipe
Old 02-26-2007, 11:51 PM
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by looking at it BA78ta, you have two mufflers and not a single dual in/dual out muffler.
Old 02-26-2007, 11:55 PM
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no. I don't. I have one magnaflow true X 12599. I built it.
Old 02-27-2007, 12:23 AM
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Originally Posted by JayAsh
by looking at it BA78ta, you have two mufflers and not a single dual in/dual out muffler.

you must have been looking at the tips...
Old 02-27-2007, 11:26 AM
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yeah i guess thats what it is. you like ur setup??
Old 02-27-2007, 02:54 PM
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yah, I like it... its different...... here it is with no cats... from the inside

http://media.putfile.com/mtn-run3 warning... I drop a huge f-bomb in it do to running through gravel at speed after heating the tires up
Old 02-28-2007, 02:10 PM
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more opinions
Old 03-01-2007, 11:17 AM
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nothing??
Old 03-01-2007, 11:44 AM
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The dynomax muffler is the one I had welded in, in place of the original bassani muffler. It sounded great, deep with no drone or rasp. See web page for tons of sound clips. Here is what it looked like:

Old 03-01-2007, 12:33 PM
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yeah but how will the sound change with longtubes and cam?
Old 03-01-2007, 12:35 PM
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Deeper and louder.
Old 03-01-2007, 02:49 PM
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Originally Posted by lsx24
The dynomax muffler is the one I had welded in, in place of the original bassani muffler. It sounded great, deep with no drone or rasp.
So you ditched the Bassani muffler? too loud?
Old 03-01-2007, 02:52 PM
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Originally Posted by Ragtop 99
So you ditched the Bassani muffler? too loud?
Actually I wanted to test the chambered non-chambered theory. The bassani has a large chamber the exhaust collects in, and the dynomax is just straight through. There was zero difference on the dyno, so the Bassani must have done something right during research and design. The Dynomax was also slightly quieter, which is what I wanted.




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