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Old Jan 21, 2011 | 10:41 PM
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jaymx410
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I have 06 f 150 5.4 with k+n filter intake kit not sure if that's where its comin from but loud whistle at certain rpms worse when its below 20 degrees
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Old Jan 21, 2011 | 11:03 PM
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Originally Posted by jaymx410
I have 06 f 150 5.4 with k+n filter intake kit not sure if that's where its comin from but loud whistle at certain rpms worse when its below 20 degrees
I get that too on my 98 4.6 w/ gotts mod...
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