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Old 01-23-2013, 12:04 PM   #1
zosozoso
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Join Date: May 2011
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Location: Anacrime
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Default 07 sti exhaust on my 2.5i weird noise

Hey guys I have an 07 2.5i and I just put a 07 sti axel back on. It sounds good. Exudes around 1500 rpm it gets this really high pitch exhaust note to it and then dies off a couple hundred rpms later. I have heard of other people having this problem. Do you think it is from the piping size difference? Or what do you think it is from? I could take my old stock axel back piping and weld it on the the sti muffler do you think that would help the problem out? Thanks and I look forward to hearing your guys thought!
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Old 01-23-2013, 07:55 PM   #2
zosozoso
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Anyone have a thought on it?
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Old 01-23-2013, 10:53 PM   #3
NIN8185
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I have a 3" axleback to my stock mid pipe and no strange noises, i dont think* its a piping issue.
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Old 01-24-2013, 02:09 AM   #4
zosozoso
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You have any idea what it could be? It's only loud before 1500 and then not loud at all...
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Old 01-25-2013, 01:59 AM   #5
TrickNipple
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Did you replace the gasket? Sounds like it might be an exhaust leak.
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Old 01-25-2013, 02:04 AM   #6
zosozoso
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No but I reused the old one and it looked to be in good condition, and I made sure to tighten it extra tight cuz I didn't put a new seal in
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