Hooker Maxflow or Dynomax Ultraflo

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Oct 3, 2010 | 10:09 PM

mean_greenZ

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Hooker Maxflow or Dynomax Ultraflo

looking to build a custom 3" or 3.5" single in/out catback and am at a tossup between these two mufflers. I know both are straight thru design but what are the differences in packing material on sound quality? Which will last longer?

hooker has ceramic wool packing, while dynomax uses continuous roving fiberglass.

Oct 3, 2010 | 10:27 PM

brucer

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any difference of them having mesh or perforated core? a mesh core will flow better..

probably could save yourself a bit of cash using some sprintcar mufflers..

Oct 3, 2010 | 11:18 PM

formula vincent

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i run a hooker aerochamber muffler on my 94 formula ..4 years now and it sounds great.

Oct 3, 2010 | 11:43 PM

01ssreda4

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From: Turnin' Wrenches Infractions: 005

Hooker all the way. I ran an aerochamber and it was pretty nasty

In a good way.

Oct 4, 2010 | 08:28 AM

mean_greenZ

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Quote:

Originally Posted by brucer

any difference of them having mesh or perforated core? a mesh core will flow better..

probably could save yourself a bit of cash using some sprintcar mufflers..

Dynomax has a perf. tube and judging by pics the maxflow has stainless mesh. What makes the mesh flow better?

I've considered the aerochamber too.

Oct 4, 2010 | 02:02 PM

Wicked94Z

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maxflow is painted black, and that ^^^ is what my 4" looked like.

Oct 4, 2010 | 02:29 PM

mean_greenZ

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So how does a stainless mesh core flow more than a perforated tube? Straight thru is straight thru.

Do u have any videos wicked?

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Oct 4, 2010 | 04:21 PM

Wicked94Z

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Quote:

Originally Posted by mean_greenZ

So how does a stainless mesh core flow more than a perforated tube? Straight thru is straight thru.

On the old motor I gained ~9hp/tq on the whole curve with the cutout open right before the axle. I have these in the y pipe as well...

Oct 4, 2010 | 05:19 PM

#10

thebird

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dynomax sounds pretty damn good i would have to say

Oct 4, 2010 | 06:48 PM

#11

Tbird232ci

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The Maxflow is a little bit quieter than the Ultraflow. I ran both on a previous car, and the Maxflow was a bit more smooth, and quiet.

Oct 4, 2010 | 10:38 PM

#12

mean_greenZ

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Quote:

Originally Posted by Wicked94Z

On the old motor I gained ~9hp/tq on the whole curve with the cutout open right before the axle. I have these in the y pipe as well...

was that with the maxflow setup?

Oct 5, 2010 | 02:00 AM

#13

Wicked94Z

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From: Spokane, Wa

yea open cutout made 9hp/tq more than through the 4" maxflow. it'd probably make 10hp/tq more than the cutout with open headers + extensions with the cam i'm running now. This motor doesn't like exhaust...

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Hooker Maxflow or Dynomax Ultraflo

Hooker Maxflow or Dynomax Ultraflo

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