great job !! and getting cooler air to the engine is great as they breather the hot air trapped under hatch

Cool !

Are those then sealed to the outside openings on side of boat ?

Here's a pic of JayTee's arrangement for those that did not click on link and scroll thru pics

Thanks,
they're sealed to the outside for the most part....darned steering hoses, throttle and shift cables and wiring harness's running in the vicinity
prevented it from matching the inside shape of the top cap , but they're notched out where they pass through....after it was done I measured the air temp inside of the box mounted to the hatch and it was the same as outside.

What you don't see is the additional hosing and blowers that I had to add just to turn the engine compartment air, since the engine isn't drawing it in anymore.

Huh. I guess the engine, at its own detriment, is a huge vacuum keeping the air moving.

looks real nice, and well done too,
like the hour meter location as well, that's were mines going

the whole boat looks nice, hard to go up from that