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1965 fastback 306 hci v3-si @10psi Pro M efi. Tko600 3:55
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Discussion Starter #21

  1. I have the Dynomax VT. It is a straight through design but incorporates a spring loaded valve that stays mostly closed under light loads. No drone whatsoever and the noise level is not bad just driving around. Under load though the valve opens up for unrestricted flow. I dont see them on Dynomax's website now.
    I think they’re not making the VT’s anymore
Sure wish I could hear sound clip of the oem style walkers with hci and off road h pipe.
Also flow numbers.
 

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1965 fastback 306 hci v3-si @10psi Pro M efi. Tko600 3:55
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Discussion Starter #22
Hoping to have them installed by the end of the year, I’ll make a post.
Happy New Years!
Any updates?
I’m still thinking about going with the Dynomax superturbos
They seem to be the quietest
Love to hear something else like the walker oem replacements.
 

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Happy New Years!
Any updates?
I’m still thinking about going with the Dynomax superturbos
They seem to be the quietest
Love to hear something else like the walker oem replacements.
Happy new year to you as well.

Sadly I have not installed them yet. I had a head gasket cut loose so I’ve been replacing that and installing a gang of parts I’ve been collecting. Hope to have them on soon
 

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This is obviously subjective. I had Dynomax superturbos and while they were relatively quiet they also droned like crazy. I replaced them with Dynomax VTs and I like the VTs more. The VTs don't drone they are a little louder at WOT though. Unfortunately the VTs are no longer made.
 

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1965 fastback 306 hci v3-si @10psi Pro M efi. Tko600 3:55
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201 Posts
Discussion Starter #25
This is obviously subjective. I had Dynomax superturbos and while they were relatively quiet they also droned like crazy. I replaced them with Dynomax VTs and I like the VTs more. The VTs don't drone they are a little louder at WOT though. Unfortunately the VTs are no longer made.
I know exhaust noise is always subjective - so many variables!
The VT’s are out as they no longer make them
I’m wondering how the walker quiet flow (oem replacements) sound with no cats and h pipe.
Can’t seem to find any YouTube videos
Seems most people want there mustangs loud
My Combo is in 65 fastback so zero cats are required
The Borla Rs sounds good at idle but Crack up and crumble same as the magma flow.
They are both just straight through glass pack
So for me at this point
Walker quiet flow
Or Dynomax super turbos
I just want smooth quiet tone
I’ll be about 425 hp with first pulley but plan on forged short block with more boost so don’t want my exhaust system to choke down @ 600 hp too bad.
Decisions decisions ?
 
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