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Old Aug 1, 2005 | 06:49 PM
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Default dynomax help

Looking at purchasing my new mufflers and dynomax seemed to be a popular choice...now I need to decide which model. Ultraflos seem nice but cost 104 a piece...super turbos are only 39 will the super turbos flow enough? What about the sound from each? Is for the 71 454 mild cam and 1-7/8 primaries on the hookers...

Steven
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Old Aug 1, 2005 | 07:02 PM
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Super Turbos are almost as quiet as stock exhaust. But they provide a unrestricted (although not straight) path through the muffler. Highly recommended unless noise is what you're looking for. Just did the swap yesterday!
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Old Aug 1, 2005 | 07:14 PM
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You probably want to get the Vette specific Super Turbos that cost about $100-$120 each. They come with the right tailpipe/inlet and the right length casing. If you can find those for $39 you need to tell us where.

The Super Turbos are quiet at cruise, loud at WOT and have a fairly quiet idle. A lot depends on the compression ratio and the camshaft timing. On a near stock Vette they are pretty tame. The flow is excellent.

-Mark.
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Old Aug 1, 2005 | 07:27 PM
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Just got my 100.00 rebate on the Ulta-Flows(17219's) , I think the price was about 70.00 each at a local speed shop, end price was 20.00 each.
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Old Aug 1, 2005 | 07:31 PM
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I paid $169.00 for two Super Turbos three years ago..Nice sound..louder that stock..excellant flow..got many compliments on sound..Ok for long road trips..
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Old Aug 1, 2005 | 08:42 PM
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Originally Posted by page62
Super Turbos are almost as quiet as stock exhaust. But they provide a unrestricted (although not straight) path through the muffler. Highly recommended unless noise is what you're looking for. Just did the swap yesterday!
I agree. I have the super turbos in the 3 inch size and they are about as quiet as I could find. They are 3 inch all the way through and just pass the exhuast gas back and forth a few times to quiet it but the flow is good.
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Old Aug 1, 2005 | 10:00 PM
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I had a "super turbo" a few years ago, no sound at all (as quiet as the stock muffler)... now, after two years listening to that flowmaster noise I bought a "ultra flow" and I'm amazed.... no restriction (straight thru design) and it's quiet on the interstate at 2500 rpm....it's loud (I mean LOUD) at wot
This is on a '99 Z28....... I would think that the difference between the two is not a lot different on the Corvette.... the 2.5" inlet/outlet 'ultra flow' mufflers are $79 each at AdvancedAutoParts...
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Old Aug 1, 2005 | 10:14 PM
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Default Part numbers...

70-73 5.7L and 7.4L
Super Turbo Mufflers
RH 17764
LH 17765

Check out the Dynomax site for more information about additional required hardware for 68-73

Chris B
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Old Aug 1, 2005 | 10:14 PM
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Originally Posted by 72-LT1
Just got my 100.00 rebate on the Ulta-Flows(17219's) , I think the price was about 70.00 each at a local speed shop, end price was 20.00 each.
I bought these also....$69.88 each from Summit....after I receive my $50 rebate per muffler, they will have effectively cost 19.88 each. I spent the money I saved on an x-pipe . Vids w/Dyomax mufflers here:
http://f1.pg.briefcase.yahoo.com/bc/..._sound&.view=l

Brett
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Old Aug 1, 2005 | 11:32 PM
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Originally Posted by Brettmc
I bought these also....$69.88 each from Summit....after I receive my $50 rebate per muffler, they will have effectively cost 19.88 each. I spent the money I saved on an x-pipe . Vids w/Dyomax mufflers here:
http://f1.pg.briefcase.yahoo.com/bc/..._sound&.view=l

Brett
Where did you buy your x-pipe from? I've been searching all over the place for a reasonably priced x-pipe to finish my exhaust and it either comes in a kit with a bunch of stuff I don't need or stainless steel and costs a mint for instance from Magnaflow. I need a decent aluminized x-pipe in 2.5".
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Old Aug 1, 2005 | 11:40 PM
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Ordered it from Summit along with the mufflers. It's a Hedman X-pipe, Summit part no. HED-18820.
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