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pressure question with duals

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Old 01-26-2006, 06:26 PM
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Default pressure question with duals

pretty much any gear except first, when rolling and I let off the gas after about a second or 2 of the regular gurgle gurgle, it seems as if the exhaust is creating some sort of vacuum. Then you tap the gas again and it seems to reverse the vacuum and POPS. Its been doing it since I've had the headers exhaust for a year with no adverse effects on power, just bugs me and I wonder if I'm gonna float a valve or something

3 inch duals, xpipe, dynomax bullets, dumped
Old 01-26-2006, 07:45 PM
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My car does that too. I've thought it was because of a lack of cats. I'm pretty sure it won't harm anything. Besides, I kinda like the way it sounds.
Old 01-26-2006, 07:50 PM
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ya I don't have cats either. and it sounds good till you hit the gas. If the RPMs are high then its a reeeal loud pop.
Old 01-26-2006, 09:12 PM
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back pressure
Old 01-26-2006, 09:14 PM
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Same thing with the A4! If you let off and coast, then hit the gas again, it tends to pop. Or go WOT then let off real quick. Other than that, gotta love the duals!
Old 01-27-2006, 07:11 PM
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ttt!!




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