I'm considering a DE Cruiser that would need an investment to get the sound down in the house. This will be my first DE and I already know a "loud" house will be a non starter with the admiral on long cruises. The current wet exhaust is an 8" exit from Turbo going to a Y with 4" out the back on either side (no mufflers). No current Sound Down under the floor although appears to be plenty of room. Questions from the experts (i know some of this is real subjective). * What is an "acceptable" Decibel level in the house at cruise to have a conversation with the admiral without shouting ? * Would a conversion from two 4" to one 8" custom exhaust with muffler help a lot ? Beyond sound I think this setup in this boat would provide more margin for error to protect the turbo from having a drink. Seriously considering this investment with this boat just want thoughts how much this might help with sound. * OR would just investing in Sound down, plugging all holes with foam etc. give more "bang for the buck" in terms of DB sound reduction ? Investing in both options for this candidate is on the table. thanks in advance for your opinions.