Crossofiron

2011 Z 06. When I am getting on it between 5 and 7000 rpm, I hear a very sight sucking or intake noise. This is with the radio off and windows down. I am a bit concerned because I had heard a loud noise under the right passenger seat like I had run over something. Is there any type of part on that side of the car that if it fell off would cause that type of noise?

383vett

With the windows down between 5 and 7 thou, the noise of the motor, exhaust and wind is so loud I can't hear a thing. Check the engine compartment for missing intake stuff, check underneath for missing exhaust stuff. If the car still pulls, I wouldn't worry about it.

TAILWAG

do you have the stock airbox or an aftermarket intake?

seamus2154

I have the same problem on my 2011 Zo7. Sounds like a slight whistle or hissing like it's sucking air at one of the couplers. I noticed it after I put on my Airaid CAI. Either is at the coupler or i can now just hear it at the filter. Couplers are tight going to have to give it another look.

Crossofiron

I have an Attack Blue filter but stock intake and air box. It runs very well, so I guess it is OK.?

cocoz06

I just heard the same noise for the first time after owning my Z for a year. Very strange noise...... it reacts to the gas peddle

Chevy Cust Svc

cocoz06 – are you thinking about getting this checked out at all?

Thanks,
Laura
GM Customer Service

JJC5

Hey Robert! Never heard that with mine but it's nice to hear you're getting that bad boy to 7K RPMs though!!
Saw you driving around the area one day recently...the Z looks great!