Still considering repowering with the Volvo MD2001, 9Hp, 1 Cyl, but I have to consider an exhaust system. Being new to marine engines I was wondering what exactly I would need for an exhaust. With this engine it will have to be a wet system but what parts will I need? The old engine just had a straight pipe with a rubber water jacket around it and a loop at the end before it exited the hull. I would think I would need a muffler, one of those fibreglass waterlift types and some sort of goose neck and an anti-siphon valve. Is there another way? Any suggestions or info on how to design one would be appreciated.