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2018 5.0 header install

 
Old 02-02-2019, 11:14 PM
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Originally Posted by Ecks View Post
It almost sounds like tire squeal. Except I wasn't spinning.
Will have to take a look tomorrow for leaks.
somethings rubbing?
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Old 02-03-2019, 07:51 AM
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Can you post post a video of the noise?
is it more of a air screaming out of a leak whistle?
or more of an internal exhaust noise thatís like too open of an exhaust so Iím hearing extra internal noises type whistles?

is it more high pitches?
or more hollow?

and exhaust leak would sound like a rusted header

Originally Posted by Ecks View Post
Just got the Kooks headers with green cats installed today. I'm noticing a weird "whistling" sound around 3k rpms. It's quiet at idle.
Any idea's what it could be?
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Old 02-03-2019, 02:43 PM
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Originally Posted by RR778 View Post
Can you post post a video of the noise?
is it more of a air screaming out of a leak whistle?
or more of an internal exhaust noise thatís like too open of an exhaust so Iím hearing extra internal noises type whistles?

is it more high pitches?
or more hollow?

and exhaust leak would sound like a rusted header


Here's a video of it
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Old 02-03-2019, 02:58 PM
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Yup normal
Originally Posted by Ecks View Post
Click Here Here's a video of it
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Old 02-03-2019, 04:53 PM
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If its an exhaust leak, give it a week or so then check all the connections for black carbon streaks which would indicate leaking exhaust. However the noise doesn't sound out of the ordinary for an aftermarket supercharged vehicle....pulley harmonics and blower noises is what that sounds like. Removing the stock cast iron manifolds may have opened the door for some harmonics.
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