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is h-pipe functional, structural, both ?

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Old Sep 9, 2008 | 04:55 PM
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Default is h-pipe functional, structural, both ?

Searched and didn't see anything like this so ... here goes ...

Just got an 08 c6 and am shopping for more sound. Coming from the late-model GTO camp where we found the "H-pipe" was just a pipe welded between the 2 straight-throughs with no openings to the side pipes at all. All we could figure was it's there to hold 2 sections of pipe together.

Has anyone verified that the H on c6 vettes is functional (e.g. open to side pipes)? ... and then same question goes for 08 X ...

One would assume the X to be functional ... but, we thought that about the h too so just wanted to see if anyone has verified ... or even asked.
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Old Sep 9, 2008 | 05:29 PM
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Don't worry..It's functional..
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Old Sep 9, 2008 | 09:39 PM
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Cool - thanks. That means I can spend that bit of change on something else

Originally Posted by Modshack
Don't worry..It's functional..
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Old Sep 10, 2008 | 11:49 AM
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Yes it works! I highly recommend the X-pipe even with stock exhaust, LOOK at them all try to get the type thats an X chamber, not just two pipes siamesed together
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Old Sep 10, 2008 | 02:35 PM
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Not sure about the C6, but on the C5 the H-pipe was a joke. The pipe connecting the two larger pipes had an opening that was about 1" connecting the two sides. Not nearly large enough to balance the exhaust pulses. Ditch the h-pipe when you get headers.
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Old Sep 10, 2008 | 02:39 PM
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Here is a picture of an H-pipe that had been cut in half. Notice the tiny hole. And I was wrong, it was only 1/2"

http://www.vetteweb.com/tech/0307vet.../photo_07.html
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Old Sep 10, 2008 | 03:43 PM
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Originally Posted by s ladd
Here is a picture of an H-pipe that had been cut in half. Notice the tiny hole. And I was wrong, it was only 1/2"
Glad my H-pipe is history after seeing that!

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Old Sep 15, 2008 | 10:28 AM
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yepper ... wonder if the h on the c6s is like that ... and what the new x looks like inside. Interesting.
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