Has anyone used water lift mufflers in a performance application?

i have seen some pictures and references to the Parvey’s Black Thunder having some type of water jacketed mufflers in the engine compartment, but everything else I find is on Searay cruisers

Yes similar to what inboards use, “water trap”, “water lift”, not sure what’s in wakeboard I have not been in many.

something like what centek makes, not the in-line ones, the ones where the exhaust and water dump into a chamber, and then exit up and out then through the hull.

I have very, very low mounted engines and I don’t like relying on a flapper to keep water out of my engines, and I could use some more drop to help with reversion. Not trying to make it more quiet. I was considering Fabing some stainless ones but I haven’t seen them on a performance application, a lot more heat and flow than they are typically used for.

Yes something similar to that, if you have pictures of how they run the exhaust from the muffler then out of the hull that would be great!

i am very reluctant to buy used parts these days, most end up being junk. I can’t find any that are 3” in/out much less dual 3” in, so I imagine I will be custom fabbing them if I go that route.