In my opinion, it helps the MDS sound and makes it better by 1000%. Again, in my opinion, that is the most annoying part of the “drone” associated with this particular setup. Of course all of this is subjective but for my ears, once you go aftermarket muffler, the resonators only create issues and annoying noise. This setup does not create the type of “loud in cab drone” that the aggressive systems do but again, that is highly subjective. What isn’t as subjective though is removing the resonators cleans up the MDS related sound. I guess as an in between what some members have done is plug the weep holes in the resonators with some jb weld (or actually had them welded) but that may eventually (?) lead to the resonators rusting but I’m not sure how that’s any different from having straight tailpipes since now I don’t have any weep holes either...All I can say is having taken this in steps and not being someone who likes “loud exhausts” I am very happy with where I’m at now.