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Resonance After Header Install

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Old Sep 4, 2007 | 09:30 AM
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Atomic-Punk's Avatar
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From: Laredo Texas
Default Resonance After Header Install

Finally got to install my American Racing Headers with stock mufflers and have developed a rather annoying resonance while cruising 62-75 mph and in gear while at a stop. The resonance seems to be coming from the rear so I assume it is the mufflers provoking this. I am going to check that they are not rubbing against the body/frame after the install of course, but are their any suggestions as to what my options are for good quiet mufflers that will eliminate the resonance or at least improve it.
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Old Sep 4, 2007 | 10:42 AM
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From: Sugar Land TX
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I have the same resonance or drone with my 1 7/8" Kooks w/catted X pipe. Looks like these NPP mufflers are a little noiser than the stock 07 style.
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Old Sep 4, 2007 | 11:14 AM
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From: North Ridgeville Ohio
Default Drone!

That is definatley a muffler issue not a HEADER issue.
Look into CORSA mufflers?
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Old Sep 4, 2007 | 03:22 PM
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From: Southampton NJ
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Originally Posted by Atomic-Punk
Finally got to install my American Racing Headers with stock mufflers and have developed a rather annoying resonance while cruising 62-75 mph and in gear while at a stop. The resonance seems to be coming from the rear so I assume it is the mufflers provoking this. I am going to check that they are not rubbing against the body/frame after the install of course, but are their any suggestions as to what my options are for good quiet mufflers that will eliminate the resonance or at least improve it.
not with the stock mufflers must be a clamp or something rubbing the frame, plus you wouldn't get the drone at idle stopped
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Old Sep 4, 2007 | 03:26 PM
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That's kind of what I was thinking, (clamp, etc..) I'll check it out. Thanks for the replys
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Old Sep 4, 2007 | 10:51 PM
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From: Hawthorn Woods Illinois
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Originally Posted by Atomic-Punk
That's kind of what I was thinking, (clamp, etc..) I'll check it out. Thanks for the replys
Atomic,
Sorry to hear of your problem. It's always a bummer when something like this happens. I have a different setup: Kooks headres, Hi-flow cats and Corsa Sports exhaust and have no problem with resonence/drone as of yet. Installed about 2 weeks ago. I'm agreeing with Dennis that it probably is something else. I hope that's what it is as these systems are pretty awsome regardless of manufacturer. Keep pluggin away at investigating and you'll come up with a solution Good luck.
Fran
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