especially if you have a skyview or Moon roof? Want to know if there's any sound improvement for having one of these?

I have a Skyview and it's pretty noisy when having the bike racks on.

Please give me any feedback , before I purchase this.

andaya

 

I have installed the MB moonroof deflector and have not experienced any improvement. I also added a thule rack for ski/kayak and found wind noise so bad I take it off whenever I don't need it.