IS F (2008-2014) Discussion topics related to the IS F model

HELP!! Suspension THUMP noise

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Old 04-04-13, 08:48 PM
  #31  
F1nALMSfan
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Originally Posted by ToothDoc
I found out the cause. The suspension makes the exhaust rattle. Yup, my sound came back and after a thorough examination, my borla exhaust was hitting a hanger. Now, after moving the exhaust around, my rattle is completely gone.
Hey never thought of that! It would be great if it was that simple. I'll take a look this weekend and see if that cures it.
Old 04-04-13, 10:10 PM
  #32  
LOLM3
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I had this problem with my old Stance coilovers, it was because the top nut was not screwed down tightly so thats why I always go this annoying clunking. Check and make sure they are snug!
Old 04-06-13, 05:41 AM
  #33  
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So it appears that the top nut was indeed not as tight as it should be. Once I got it tightened up, the noise went away. The Borla exhaust was still on there as tight as the day I put it on; wasn't the culprit in my case, Thanks for the great advice all.
Old 10-21-13, 04:29 PM
  #34  
MK4Sup_isF
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I might need to check the top nut on my BCR now too. I get that strange vibration/thumping noise under throttle on hard right turn.
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