When I had my engines serviced I also had my generator done. It is a Kohler but I don't know the specific model. the mechanic changed the raw water intake hose and said the exhaust hose also needs to be done but it goes off into an area where it is difficult to see. He wants me to have my cabinets torn our... ya... don't want to do that.... so I am hoping for same advice. There is a Centek Industries Wet Marine Exhaust box that it passes though and the 1 1/2 hose coming out is in rough shape. I can't see where it goes, and I don't know how far back I would need to get to replace it. Has anyone does this before?