exhaust note changed, have question

Blackcrimzon

I just got my car back from having a Twin Turbo installed. I have berk hfc and a Berk exhaust installed. When I started it up and took it for a test drive before taking the car home, I noticed that the sound that I loved so much from the Berk exhaust was gone. It now sounds like a stock exhaust. So my question is to those that have a TT set up did your exhaust note change or did it stay the same? I was thinking of getting a different exhaust now and I was also wondering if I went with test pipes would that help or would my car not change its tone at all because of the turbos? I was also wondering for those that have a HKS exhaust and a TT how much did your note change as I am leaning towards this instead of my Berk. Or if anyone in my area has this step up of a TT and an hks exhaust I would really appreciate it if I could listen to your car. Or really any TT set up in San Diego that I could listen to as I do want a different exhaust. The only reason I got the berk exhaust was for the sound and I no longer have that sound. Thanks for any help that you all can offer.