Drop-In Interchangeable Hub Propellers

If you don't have one, your propeller may be slipping. It only aids in preventing cavitation and, in the worst-case scenario, complete blow-out of a thru-hub exhaust system by keeping the exhaust gases in the slipstream (the water flow between the bottom...

The diffuser ring keeps exhaust gases from re-entering the blades at low speeds. If you don't have one, your propeller may be slipping. Only on a thru-hub exhaust system do they aid to keep the exhaust gases in the slipstream (the flow of water between...