Exhaust bi-pass valve or back box delete - droning !?

[A1EK]

Audi 1.8 T


just had the car mapped and lowered and the cars performance is night and day with over 40% more torque.


Looking at now either buying a remote bi-pass exhaust valve and install after the cat, or could just go with removing the rear twin back boxes.


Question though, does the car drone without the back box baffles? I have a 6 hour commute so don't want to make it unbearable. !


thanks in advance !