Returned today with Keith to inspect noise concerns that were reported from living room/mudroom, master bedroom & kids & bonus room.Tested each system hearing noises that were reported.There are currently Honeywell 4 inch media filters MERV 11 installed confirmed the filter door was properly intact along with furnace doors were properly intact.Removed the filter noticing the noise has quieted down will need to return with three 16x25x4 MERV 8(NON-HONEYWELL).Looked within equipment finding shipping bolt still installed on each blower assembly which is improper each was removed which also helped with the noise as well.Lastly the kids bedroom/bonus room & master bedroom return need to be extended/rerouted to help with excessive noise being distributed through the return vents.