The USCG rating is based on what it says on the cowling.
90% of the time, that means the HP rating is from the Powerhead and not the
Jet unit. But there are a few motors out they call "Jet Ready" and they
display the HPon the cowling based on its actual jet rating, not from the
Personally I like the Etec 115HP for a few reasons, first, it is a lighter
weight boat ( and in a jet boat, ever bit of weight and it's location
changes the attitude of the boat.) Second, the E-Tec has a greater power
curve. The Suzuki 140 have a gear reduction that does not benefit when set
up with a jet unit. But is a great set up when running a prop motor.