There was a request on another thread for pix, but there's so many pix I thought I'd put them in a seperate thread.
Here's the install so far, these first two are of the overall install behind the seat on the gunwale shelf, those silver squares are the brackets for the bench seat back. You can also see a bit of the wrapped exhaust pipe.
I wrapped the exhaust pipe in a crazy amount of header wrap over the insulating sock it came with, in places I'm almost an inch worth of insulation where I thought there might be a concern.
The angled shot shows the outside combustion air intake, the actual pipe is inside the plastic bilge pump pipe for noise reduction. Also you can just see the standoff I had to fab for the mounting plate, the D4 was too big to fit in the gunwale shelf, so it's half out of it, but still clears the seat cushions and seat back.