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Mustang Forums
2011-2014 Mustangs
Exhaust
LT header noise
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<blockquote data-quote="orange_whiner" data-source="post: 14242593" data-attributes="member: 70879"><p>I tried every fix that been discussed on the web. The thing that fixed it was deleting the flex joints on the x pipe. they resonate between 2k-3k rpm under load and decel. Try taking a rubber mallet and tapping (cold exhaust) in front of the collectors, sides, flanges, around 02's, flex joints, merge of the x, and mid pipe clamps. Use varying amounts of force for each area. Light taps with a 3lb. dead blow revealed for me the flex joints were the cause of the bad vibes. (see what i did there)</p></blockquote><p></p>
[QUOTE="orange_whiner, post: 14242593, member: 70879"] I tried every fix that been discussed on the web. The thing that fixed it was deleting the flex joints on the x pipe. they resonate between 2k-3k rpm under load and decel. Try taking a rubber mallet and tapping (cold exhaust) in front of the collectors, sides, flanges, around 02's, flex joints, merge of the x, and mid pipe clamps. Use varying amounts of force for each area. Light taps with a 3lb. dead blow revealed for me the flex joints were the cause of the bad vibes. (see what i did there) [/QUOTE]
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2011-2014 Mustangs
Exhaust
LT header noise
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