You could do what I’m doing and have a flange at the downpipe for the wastegate merge. This way you can run recirced with one wastegate tube and then a blockoff plate and open dump… This way you can coat the shit and decide later which you like better prove if there is an actual difference besides noise.
This is my reasoning also… I like to hear the motor… and I don’t need attention when I stab the throttle. You can easily hear my car from 2miles away. EvoMR on the boards whent to recirced because of noise violation at trackdays, his car was much more tolerable on the streets and no more exhaust fumes ever. With an open dump you will smell the fumes sometimes or alot of the time.