I have a 1989 Hunter30 and need to replace the wet exhaust hose from the muffler to the discharge port. Sailboat owner support can only verify 2GM hose is 2". Without removing the existing hose first, I am hoping to confirm that the wet exhaust would also be 2". Tight fit to get at to replace and can't return hose if I order wrong size. Any help on verification of hose size would be appreciated.