after riding my little stunt hull all year . the one complaint I have had is that its toooo loud , So I bought a powerfactor waterbox. I had a westcoast silencer installed in the nose of the ski. so I pulled that all out and replaced it with a straight pipe.( the waterbox would not fit in the nose of the ski) Dang it!!
so the only place I could make it work was where the battery usually goes .... my battery fits in between the gas tank and the motor.
Took this out to the lake a few days ago for a test ride, with wildman and mossman and what a difference in noise level ... It was really frikking cold and was able to get about an hour of a ride in , I feel that there was little to no power loss .
that is a tight engine compartment though!