The R&D 2018 RXT-X 300 Stage 2 Kit delivers an impressive increase in acceleration and will add 10 MPH top speed performance gain while improving overall handling, pump hookup, and straight line stability. The R&D Performer Kit maintains the integrity of “Stock Reliability” by keeping RPM’s low and pump gas friendly! The R&D Stage 2 Kit is very easy to install and is available at a reasonable retail price. Most parts in the Stage 2 Kit can be used individually as a “stand alone” product. The R&D R2 ECU will unlock an additional 3 pounds of boost! The R&D Sponson Kit will completely transform the handling of the Sea-Doo RXT-X 300 to an exciting new level of performance, a huge “bolt on” handling difference! The RXT-X 300 with a R&D Stage 2 Kit installed is sure to deliver increased speed, and much improved handling performance. The kit parts are: R&D R2 ECU Speed Control Removed/R2 Advancements, R&D Aquavein Intake Grate, R&D High performance Air Filter Kit and R&D Pro Series Billet Sponson Kit.
Performance data
Stock 2018 RXT-X 300 Avg. Speed 67.5 (67-68) mph @ 7850 RPM (Average after Speed limiter).
R&D 2018 RXT-X 300 Stage 2 Kit Avg. Speed 77-78 (78) mph @ 8100/8150 RPM.
NOTE: R&D recommends the installation of an R&D RXT-X Surge Protection Kit offered, which will substantially reduce wear and tear on the O.E.M. supercharger clutch assembly. Automobiles with Turbo Chargers or Supercharges generally always include surge protection valves to protect the supercharger from harmful compressor surge. The R&D RXT-X Surge Protection Kit offered is Part # 613-95258.
NOTE: The R&D 2018 RXT 300-X Stage 2 kit development, tachometer, and top speed information posted was gathered after an initial 5-mile warm-up to stabilize engine temperatures. All testing was performed exclusively with Chevron 91 octane pump gasoline at 500 feet above sea level. Ambient air temperature during testing in March was between 75 and 85 degrees. These test results may change as we continue to gather data, and monitor O.E.M. stock boat speed averages, and production impeller consistencies. The information posted in the R&D Performer Kit are averages. In many cases we hear of feedback from Sea-Doo owners with performer kit packages reporting of higher speeds than posted.
