Please include your phone number in the response. I apologize if this seems a bit curt; however, due to the large number of scams we have received from our recent CL ads, we will not respond to any queries without a phone number.
I have one marine water exhaust muffler for $40.00. This was working well when I took it off my 1963 Chris Craft Cavalier. The muffler mixes the exhaust with the sea water from the cooling system to reduce noise and increase efficiency. The inlet and outlet size appears to be 2.5 inches in diameter.