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Our Pro-Series Sea-Doo Water Boxes deliver increased horsepower and performance by reducing exhaust restriction and back pressure. Developed on a flow bench, our water boxes feature radiused exhaust tubes and end caps for optimum exhaust flow. Innovative short design allows easy servicing of supercharger without removal of exhaust system. High strength aluminum construction & precision welds will survive backfires & overheating. Powder coated to prevent corrosion. Includes detailed installation instructions.
Important Notes:
Requires use of RIVA O.P.A.S. Block-off Kit (Performance or Pro-Series) as well as RIVA Rear Exhaust Outlet Kit (part# RS15050-ET).

Will directly replace and upgrade RIVA Rear Exhaust Kit (part# RS15050-1) utilizing existing rear exhaust outlet installation. If rear exhaust has not been installed order our Rear Exhaust Outlet Coupler Kit (part# RS16082-ECK) to complete the installation.