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Hiss At High RPM

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Old Jan 13, 2008 | 02:33 PM
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Default Hiss At High RPM
After installing the gutted catatlytic convert, I notice at high rev, 6000 or more RPM, a hissing sound. It fades as the RPM drops. I checked for exhaust leaks at the donut and flange when it idles, nothing. Could this be exhaust leak?

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Jason
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Old Jan 13, 2008 | 05:59 PM
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Old Jan 13, 2008 | 07:24 PM
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could just be how it sounds with more flow
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Old Jan 13, 2008 | 07:56 PM
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...its your turbocharger spooling up
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Old Jan 13, 2008 | 11:38 PM
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Watch out...

.....................SNAKES IN S2K.
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Old Jan 14, 2008 | 09:17 AM
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LOL, no. I listen to it closely today. It sounded more like a whislter. It only happens at 6000 or more RPM.
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Old Jan 14, 2008 | 09:21 AM
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throttle body.
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Old Jan 14, 2008 | 09:29 AM
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vtec snake is warning you of vtec
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Old Jan 14, 2008 | 09:46 AM
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Originally Posted by J'sS2K,Jan 14 2008, 01:17 PM
LOL, no. I listen to it closely today. It sounded more like a whislter. It only happens at 6000 or more RPM.
?
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Old Jan 14, 2008 | 05:56 PM
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If it doesn't leak at idle what are the chances of it leaking at full throttle?

Jason
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