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

md spacer whistle

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Old Jul 26, 2014 | 03:02 PM
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md spacer whistle
just installed my copper iso spacer.... when I accelerate I get a whistling sound from my engine bay.... retightened all the bolts... still hear it. whistling goes away above 40 mom...

is this normal?
 
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Old Jul 26, 2014 | 03:15 PM
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It usually will emit a slight "whistle"
More like a hiss sound almost
 
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Old Jul 26, 2014 | 03:42 PM
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Originally Posted by jerseytaylor
It usually will emit a slight "whistle"
More like a hiss sound almost
yea I heard the loud hiss at WOT....but under normal driving?
 
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Old Jul 26, 2014 | 04:16 PM
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Cud be a leak
 
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Old Jul 26, 2014 | 05:48 PM
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hmm... took it for another drive... seems to be anytime I give it a little gas... whistle or hiss seems to be coming from my intake...

perhaps my intake drawing in more air now due to increased space?
 
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Old Jul 26, 2014 | 06:32 PM
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Dude. This is exactly what cold air intakes do. They hiss.
 
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Old Jul 26, 2014 | 07:43 PM
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Originally Posted by PLENUMCOUPE
Dude. This is exactly what cold air intakes do. They hiss.
sighhhh.... I've had the intake on for several months with no hissing. so I'm guessing the spacer had to do with the sound now..
 
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Old Jul 27, 2014 | 12:22 AM
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I didnt like it either. I sold my intake and went back to stock with plenum spacer and oem intake.
 
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