on my last boat ( the new one has thru hull only) we installed captains call so there was no need to pull the motor or the y pipe since it was still needed. I got a captn call sys for 450 bucks on ebay ( I think it was ebay) so all we had to do was cut the holes coat them with resin and install the tips and 4 inch hose. I think 450 was well invested since i didn't have to pull the motor and could turn it back thru the prop for docking and skiing.