Why don't you just put it on when you get it and see if the awful sounds folks are reporting really bothers you. Some folks are more sound sensitive than others.
I added a Ricochet about a month after I bought my TW and all I hear is a little 200cc motorcycle engine putt-putting. And I work as a sound engineer on occasion.
I have skid/bash plates on 3 of my motorcycles and other than sometimes being in the way of a clear oil change drop, none of them have bothered me audibly.
Yes, try it out first. There's a app that you can use with your phone called Decibel Meter. I think the lowest version is free at the App Store. Check it out at your ear or by your helmet before you get and install the Ricochet. Then again at the ear after. There should or would be negligible increase (meaning some but not a lot).
All Winter when I'm wearing a full-face helmet my Ural sounds just like my BMW's. When it gets warmer and I sometimes use a 3/4 helmet it sounds like a clanking frying pan of marbles. Shape of your helmet affect audible effects as well.