If later on you decide that the drone is annoying, have your exhaust guy install a Helmholtz resonator.Yeah, a little, but with how wide open it is, it's less than I expected. Going 70-75 MPH you will hear some, around 2K RPMs. But it's not bad IMO. Even my wife said when we are on the phone she doesn't notice it.
My '18 5.0 F150 had brutal drone in the 1700-2100rpm/66-75mph range after muffler delete, but retaining the factory resonator.
I built a Helmholtz resonator with info from this thread that addressed the drone in that rev range.(there is some math involved)
Exhaust Drone Cure - Ford F150 Forum - Community of Ford Truck Fans
Now the drone is completely gone! The only thing I don't like...is it looks weird...but you really can't see it.