G35Driver - Infiniti G35 & G37 Forum Discussion

Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Why does my exhaust make a hissing noise?

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Old Jul 4, 2019 | 08:41 PM
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kaial's Avatar
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2005 5AT G35
Why does my exhaust make a hissing noise?
https://www.reddit.com/r/G35/comment...hissing_sound/

Sound occurs at 2.5-3k rpm

my setup is non resonated test pipes, stock resonator, and muffler delete. could it be the resonator making the noise? or do i need a tune

 
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Old Jul 4, 2019 | 11:11 PM
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You just get a lot of unwanted frequencies and rasp out of the tailpipe when there is only a resonator to quiet it down.
 
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Old Jul 6, 2019 | 05:39 PM
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2005 5AT G35
so what do u suggest i do
 
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Old Jul 6, 2019 | 05:40 PM
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2005 5AT G35
Originally Posted by cleric670@gmail
You just get a lot of unwanted frequencies and rasp out of the tailpipe when there is only a resonator to quiet it down.
so what do u suggest i do
 
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Old Jul 6, 2019 | 06:31 PM
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Add a muffler for starters.
 
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Old Jul 7, 2019 | 11:17 AM
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Originally Posted by cleric670@gmail
Add a muffler for starters.
Great idea! By having test pipes and muffler delete you have what is known as the famous "Ghetto Exhaust!" You've removed everything that makes the system sound good, cheaply! Go to Magnflow and get a muffler that will make your exhaust sound somewhat normal!
Gary
 
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Old Aug 12, 2019 | 07:58 PM
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2005 5AT G35
Originally Posted by gary c
Great idea! By having test pipes and muffler delete you have what is known as the famous "Ghetto Exhaust!" You've removed everything that makes the system sound good, cheaply! Go to Magnflow and get a muffler that will make your exhaust sound somewhat normal!
Gary
Yeah it sounds like ****
 
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Old Aug 14, 2019 | 06:04 PM
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At 16 yrs and 207,9XX miles, I finally needed a new resonator and muffler as it would not pass a safety inspection--plus it was getting quite loud in the cabin.

Didn't have much time to shop around, so I ended up going with OEM (or the currently available) resonator and muffler.
 
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