I think what I need to understand is that, regardless of being near target boost or not, the wastegates are still somewhat open causing a noisy drone at sub boost conditions (highway cruising). I had it in my mind that the wastegates keep 100% closed until ~20% below target boost psi. Hopefully I'm reading everyone's comments correctly.
In the end I think I'll still need to resonate my exhaust by swapping out pieces. I'll try the recirc option firstly then go from there.
Thank you for everyone's feedback.
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