"wha Wha" sound from engine at WOT?

[TWARDEN]

I have a 06 A6 Corvette and under WOT, I hear almost a "Whirling" sound very hard to describe.


Anyone elese heard of this problem? Is this normal? Before I bought the car I did a Service History on it and the R&R Replace is on there so I take they have already changed the fluid in the rear. The Car has 10,600 miles.

Here is a small clip with my phone. Turn your speakers up, the sound is at the end of the WOT. Its a Wha Wha sound




Any help or direction would be appreciated.

 

[NORTY]

After playing your video 4 times, it sounds like your issue is during WFO, not after WFO.

Any mods to the induction? I'd look for the carbon decals in the intake if stock. Also, any codes?

 

[TWARDEN]

After playing your video 4 times, it sounds like your issue is during WFO, not after WFO.

Any mods to the induction? I'd look for the carbon decals in the intake if stock. Also, any codes?

I have a FAST 90 intake and the car has 10k miles, dont think theres a whole lot of carbon in the intake.