BBSurfer

If you don't have heaters like these, you may not realize that the position (as installed here) is awesome! Even without pulling out the tubes. I was in my Moomba Max and turned them on and they blow hard enough that the heat blows across the floor and right under the driver's seat. I was looking around for a dash vent to see where the air was hitting me from before I realized it swirls from across the walkway. 
BTW, on a closed cooling system, is the heater core heated by antifreeze or lake water? Wondering for the winterize procedure. Would be much better if it was part of the closed cooling system. Yes? 

What do you guys think about this up/down exhaust routing? 
They do that to prevent wash back to engine? 
Would it be worth adding a flap on outlet on your PVC pipes to prevent water sloshing back in? 

That is 2018 Supra SL BTW

How about a video with the plate moving up and down? I don't understand how the rubber pipe flexes or moves with the plate? 

I found some pics that show the bottom. I figure it will help someone else here. It looks like two small pipes on bottom are intake. 

and maybe they have some baffles inside to act as muffler. 

How about a strong bracket to the middle of swim step? 

How about cutting the underwater outlet at the same angle as FAE? 

Cool, I was looking to do this if I buy a 2017 Moomba Craz.

Do you have any pics of the bottom of the centurion stinger plate? I can't find any that show the bottom online? 

Also, I thought I read that the water has an intake into the stinger (from below) and then mixes and goes out the holes and back of plate. I don't understand how the water gets in there. 

I also don't see how the exhaust actually gets underwater. Or does it just get diffused at water level and stay low so surfers don't breathe it. Would be awesome to somehow get a smoke bomb in there and see where the exhaust goes. 

Maybe some of that winterizing fogger spray? 

Any videos from looking down on DIY stinger from swim step?