New Sea-Doo RXP and RXT 300 Performance Products Lucas Cooney April 19, 2016May 12, 2016 Shares Comments Riva Racing offering rear exhaust and water box for high-performance PWCWhile the RXP 300 and RXT 300 are the most powerful personal watercraft Sea-Doo produces, Riva Racing is offering a pair of new products to push the performance envelope even further. Rear Exhaust Kit Riva Racing has come to market with exhaust kits for both the RXP 300 and RXT 300. Each kit retails for $349.95. Here is what Riva Racing has to say about the new exhaust kits: “Our rear exhaust kit delivers performance and cutting-edge style. Allows for removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure and restriction. Includes mandrel bent aluminum exhaust tube that is powder coated to prevent corrosion, large billet through-hull exhaust outlet, OEM exhaust outlet block-off and high-temp silicone couplers along with all necessary mounting hardware & installation instructions.” Click here for more information on the RXP 300 kit and here for the RXT 300 kit. Water Box To further improve the performance of your RXP or RXT 300, Riva Racing also has developed a new Water Box ($419.95) which is designed to increase horsepower. Here is what Riva says about its new Water Box: “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.” Click here for more information about the Riva Water Box. Share Share Subscribe Like PersonalWatercraft.com on Facebook Related Stories RIVA unveils 500-horsepower Sea-Doo turbo kit RIVA Racing Releases Host of Sea-Doo Spark Products Upgrade the Steering on Your Sea-Doo Spark Comments Most Popular Remembering the Sea-Doo XP March 16, 2016 2024 Kawasaki Jet Ski STX 160X Review June 14, 2024 2025 Yamaha JetBlaster PRO 2-Up Review August 22, 2024 2013 Yamaha VXR Review January 29, 2013 2017 Yamaha VXR Review February 21, 2017 Top Guns: Sea-Doo RXP-X 300 vs. Yamaha GP1800R SVHO July 4, 2022 Latest Stories 2025 Sea-Doo FishPro Apex Review 2025 Yamaha JetBlaster PRO 2-Up Review The Toys Of Summer Kemimoto 4 Bow Bimini Top and Boat Bumper Review Repowering Your PWC Like us on Facebook Follow us on Twitter Newsletter