I recently purchased a 2006 44 Sundancer with a hard top and TNT lift. I have noticed this boat is noisier than our diesel 40 when running at cruise. This boat has cummins 500's. I would like to hear from anyone with this boat and any suggestions such as engine room insulation etc. I have speculated that maybe the extended platform has changed the dynamics of the exaust and it is bouncing of the hard top. Thanks for any help.