Help wanted Sea ray 220

[Wild card]

Hi all

i am new here great site but i cant find some info i need

maybe someone can help me

i have à 1994 Sea ray 220 ov select with à 496 mag bravo3
i want to install à Corsa exhaust thru the back of the boat
do i need mufflers i dont want to have à screaming noise

thanks

regards danny

 

[Wild card]

Do someone have à good site who ships to the Netherlands ?