Stock RXP-X 260 Avg. Speed 67.5 (67-68) mph @ 7850 RPM / 7 lbs. Boost
R&D RXP-X 260 Stage 1 Kit Avg. Speed 74.5 (74-75) mph @ 8100/8150 RPM / 10 lbs. Boost


Description of Parts
R&D R1 ECU Reprogram (must send in the OEM ECU to program)
Part #: 803-01501
R&D Pro Pitch Impeller 14/21 or 14/22
Part #: 133-01421/133-01422
R&D Aquavein Intake Grate
Part #: 113-95008
R&D Sponson Kit
Part #: 123-95111
R&D Ride Plate Trim Pad Kit
Part #: 123-80622
R&D Power Plenum Air Filter Kit
Part #: 203-00260
Total: $2004.75
Performance Upgrade over Stage 1 Kit, See R&D Stage 2 Kit

Parts/Kit Overview

The R&D RXP-X 260 Stage 1 Kit delivers an impressive increase in acceleration and easily adds up to 7 MPH top speed performance while improving overall handling, pump hook up, and straight line stability. The R&D Stage 1 Kit maintains the integrity of “Stock Reliability” by keeping RPM’s low and it’s pump gas friendly. The R&D Stage 1 Kit is very easy to install and is available at a reasonable retail price. Each part in the Kit can be used individually as a “stand alone” product.

  • The R&D ECU Reprogram Service is one of the first performance upgrades that should be done to the new RXP-X 260. The new RXP-X ECU has an internal acceleration governor and top speed governor that’s GPS controlled to only allow 67-68 mph. The GPS speed governor controls the throttle plate to modulate and restrict airflow into the intake plenum. The throttle plate modulation controls and limits the boost pressure to 7 pounds. The R&D ECU Service is a vital and necessary key to unlocking and adding performance to the new Sea-Doo 260 engine platform. Whether you are a recreational enthusiasts or an off shore racer who is interested in more performance, the R&D ECU is an absolute “Must Doo” Upgrade.
    The R&D R1 ECU Reprogram produces some great performance gains through its advanced ignition timing, re-calibrated fuel map, increased rev limit to 8450, removed GPS speed control, eliminated acceleration governor (starts in sport mode), and eliminated boost limiter to allow maximum boost pressure to be reached. With the 8450 rev limiter option and removal of the GPS control, the O.E.M. boost pressure (7 pounds) is allowed to increase up to 10 plus pounds. The R1 ignition timing safely maximizes performance with 91 octane pump gas allowing the Sea-Doo 260 engine to accelerate much quicker out of the hole and pull harder through the mid range with significant speed gains. NOTE: The R&D R1 ECU can be ordered with either 8350 or 8450 rev limiter sequence settings. Contact the Pro’s at R&D to find out what’s best for your personal performance package or program updates.

  • The R&D RXP-X 260 Aquavein Intake Grate kit will keep your Sea-Doo RXP-X’s pump loaded, hooked up, and off the rev limiter to improve handling and top speed performance. Improved straight-line stability and smoother, tighter turning capabilities will be noticed instantly. Top speed improvements of 2.5 -3.5 have been documented by R&D customers in both flat and rough water conditions. The R&D RXP-X Intake Grate’s Race Technology Inspired Wing concept will efficiently load the Impeller/pump at all speed ranges to promote maximum acceleration performance.

  • The R&D RXP-X Pro Series Sponson Kit will increase top speed stability in rough water conditions, as well as add increased and improved turning performance. The Sea-Doo RXP-X 260 sponson has a unique stock feature that is tabbed as a “decelerator fin”. The decelerator fin does a good job of keeping the RXP-X stable at slow cruising speeds with a stock engine package. However, who needs a decelerator fin when you want to accelerate hard and go faster? The Pros at R&D have incorporated into the R&D Sponson lots of race inspired technology to keep the RXP-X 260 ultra stable at top speed, corner sharp and smooth, and actually increase acceleration from zero to 30 mph by leaving the “decelerator fin” out of the design. R&D has done all this without loosing any of the cool inside lean handling performance the RXP-X 260 is admired for. The R&D Sponson Kit offers 2-position sponson blade adjustability, which will guarantee this kit to out perform any other 1, 2, or 3 up. The R&D Pro Series Sponson Kit offers a smoother more predictable ride with much better low and high speed turning capabilities. Track tested and race proven! Kit installs in less than 10 minutes with basic tools and comes complete with all hardware and instructions.

  • The R&D RXP-X 260 Ride Plate Trim Pads will increase overall and straight line handling stability, as well as add to top speed performance. The R&D Trim Pad Kit is a must for rough water conditions to significantly reduce porpoise and bow hunt. Racing Offshore? The R&D Trim Pads are a must to help keep the hull flat and the pump hooked up to keep the engine off the rev limiter. Straight line top speed averages are increased in rough water, and there is ZERO speed loss in perfect flat water conditions. What’s the secret? The stock trim pads have a downward hook built into them which in general robs speed. The R&D Trim Pads are lengthened over stock and are flat which will allow more top speed! Also, as a bonus, they double for a great deep water boarding step.

  • The R&D RXP-X High Performance Air Filter Kit was designed and developed exclusively for the new Sea-Doo RXP-X. The R&D filter kit will unleash restricted low-end, mid-range and peak horsepower trapped in the OEM air filtration system. The new R&D Cool Air Filter Kit installs at the front of the hull above the gas tank and replaces the restrictive OEM air box. Replacing the OEM air box with the R&D Filter offers a very economical way to improve airflow CFM and overall performance. Sounds good, looks great, saves cash and will install in minutes.

  • The R&D/Solas 14/21 Pro Pitch Impeller is a custom Pro Pitch Tuned impeller that meets the performance demands of the R&D Stage 1 and Performer Kit. The R&D/Solas 14/21 is custom tuned and tested to work exclusively with the R&D Boost Box, R1, R2, and R3 ECU Programs. R&D stocks a complete line of Pro Pitch Impellers that will out perform “out of the box” aftermarket impellers. Performance gains include reduced cavitation, increased acceleration and improved top speed. Call R&D for other custom Impeller pitch options that will work with your choice of ECU rev limit settings, or riding environment and conditions. NOTE: R&D Recommends the 14/21 Impeller for 90-110 degree weather conditions, and the 14/22 Impeller for 60-85 degree weather conditions.

NOTE: R&D recommends the installation of an R&D RXP-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 harm full compressor surge. The R&D RXP-X Surge Protection Kit offered is Part # 613-95258.

NOTE: The R&D RXP 260-X Stage 1 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 Stage 1 Kit are averages. In many cases we hear of feedback from Sea-Doo owners with performer kit packages reporting of higher speeds than posted.


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