Sea Doo RIVA S3 T3 RXT-X RXT-iS/aS GTX-iS/aS RXP-X 260 Performance Water Box RS16091

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Sea Doo S3 T3 RIVA Performance Water Box


100% Genuine RIVA

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.


  • 2012 & Newer Sea-Doo RXP-X (T3) Models
  • 2009 & Newer Sea-Doo RXT/GTX iControl (S3) Models (suspended & fixed deck)

The following Additional RIVA Exhaust Components are required to complete the installation.


NOTE: Water Box not designed or intended to be used with stock rubber exhaust hose and/or stock exhaust outlet.