Does anyone have any experience with this exhaust?? Is it loud?? Is it good??

I want an exhaust that is quiet!!! My only alternative is the RSR ex mag exhaust but it is only 2.5"

I am running turbo, so I need piping to be as big as possible.

I hear the Kteller exhausts are loud.....

What do you guys think??

Suggestions..I did a search for different exhaust and only come up with ktellers for turbos...