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Sidepipe muffler inserts

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Old Jan 15, 2015 | 10:42 AM
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Default Sidepipe muffler inserts

Ordered these to day from Summit
DOU-D952
to replace the hooker existing look to be way to restrictive.
A little WD-40 and they came right out.
Anybody else running these? Supposed to be louder and deeper less restrictive.
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Old Jan 15, 2015 | 02:28 PM
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Yes, I put these in this summer and they are great. The only way I can explain the sound is they sound like the Cobras. My original pair was stock from XS-Power and were a little quiet for me. These have a good sound and really open up with a foot to the floor. I tack welded mine in so as not to have them rattle.
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Old Jan 15, 2015 | 02:42 PM
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Do you know what size the core is?
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Old Jan 15, 2015 | 02:51 PM
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Default core

less than 4"
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Old Jan 15, 2015 | 02:55 PM
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Originally Posted by Kryptonite
less than 4"
Well that's obvious.
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Old Jan 15, 2015 | 03:13 PM
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this link shows the three types Doug's has but does not give internal dimensions, but visually the largest core looks pretty large
http://www.corvetteonline.com/tech-s...dougs-headers/
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Old Jan 15, 2015 | 03:32 PM
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If I remember correctly, the center hole was "banana" sized....not too loud where the guy next to you is rolling up his window, but enough to turn heads.
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Old Jan 15, 2015 | 09:06 PM
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I went from the stock Hooker inserts to the largest opening "Sweet Thunders" .... velllly nice ...
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Old Jan 15, 2015 | 10:34 PM
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I didn't like the sound of the summit inserts- sounded way too much like a couple of muddin' trucks my friends have.

I'll be posting my corvette idle video on youtube soon and you can see what the Classic Chambered Exhaust inserts sound like with a mild 355 under the hood. I'm searching for my driving videos as well.

At 47-50 mph its the sweetest sounding hot rod I've ever driven or ridden in.


Well worth the cost and I believe there's a 3" core version now- I wish I had those!!

I'll post a link as soon as youtube stops being so slow at uploading...

I forgot- I've got the idle video on facebook if you want to check there.

Last edited by Cheapo78Vette; Jan 15, 2015 at 10:37 PM. Reason: Added info
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Old Jan 15, 2015 | 10:43 PM
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Here's the link to my youtube video:


Watch and enjoy- feel free to ask questions or comment, here on the forum, or on youtube...
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Old Jan 16, 2015 | 08:43 AM
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Originally Posted by Kryptonite
Ordered these to day from Summit
DOU-D952
to replace the hooker existing look to be way to restrictive.
A little WD-40 and they came right out.
Anybody else running these? Supposed to be louder and deeper less restrictive.
They look like my Hooker Max Flow inserts which have a 2.5" opening straight through.

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