I feel the need to quiet the cummins. We are expecting our first child in a few weeks and I have been thinking about my little girl having to listen to that drone. I have the turbo back 5" mbrp system on now. I have been wondering if adding a muffler like the donaldson to the system would help. I would just leave the mbrp muffler and add another. Do yall think it would help, or would I be throwing money out the window.