Exaust System

The exaust exit around 15-20 cm above the waterline on the port side

Constraints exist in calculating the entire system levels according to Vetus specification, relative to the engine position, elevation on the DWL and lenght of the tubing.
With some careful thinking I think we found a solution and placed the hole and inside the muffler with relative gooseneck.

External rim.

Muffler with integral goosneck.