I posted this under another topic and apparently it should be under this one. Since the search is still broken, I am sorry if this is a repeat question.

I installed an AEM intake, but I was getting this noise before I installed it. When I hit about 76 - 77, I get this really high pitch noise that is directly associated with the throttle. If I stop giving the car gas, the noise goes away, but it is almost unbearingly loud at 80 and since I drive about 80 most of the time, it is really starting to annoy me.

Is there anything that I can do to get rid of this noise short of trying to insulate the interior. I saw that some guying were dynomatting their interiors, but I like the engine noise, I just hate this high pitch noise.

Any help is greatly appreciated!

 

I have the same problem but it's hard to get the dealer to acknowledge the problem because the tech refuses to take the car up to 80 (which is when the whining sounds start).

 

This is a NORMAL condition. Around 79mph exactly I hear this on mine. Trust me on this one.

 

normal huh...that sucks...it is really loud, but i guess if i wanted quite, i should buy a G35...lol

 

I get this too.. its been driving me nuts!! So this is normal??

 

It is the MAFS, I get it on mine too. It happens at about 4k rpm. Many people ask about this, it isnt a problem, just an annoyance.

 

am i really at 4000rpm's at 80? That sounds a bit high for this car.

 

yeah i get this also.. almost exactly when i hit 3K on 6th gear (80mph).. i hear that whine sound. its been posted a lot of times in the past... there wasn't a definitive answer to it. most just accepted it and turned up the radio