you might be hearing your internal wastegate opening more, which lets more of the natural engine sound (unmuffled by the turbo) of the engine at 6-7k rpm.

when my 1.8t had an internal wastegate, i could hear it when it opened. a subtle roaring sound.

 

that describes it best, a subtle roarding sound that coincides with engine speed.... Damn almost lunch time....

 

its after 4 pm on the east coast...where r u man?

 

Seattle, lol.

Anyone in Seattle area, stop by BECU and we'll go for a mob...
(Boeing Employees Credit Union)

 

oh i see...yeah i am in the Atlanta Ga metro area...so that explains alot :P