Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+
Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+
Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+
Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+
Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+
Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+

Sea-Doo RXT-X 300 Stage 3 Tune Bundle 2020+

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Sea-Doo RXT-X 300 2020
Top Speed: 85 mph
RPM Limit: 8600 rpm


The MaptunerX Bundle is utilized to reflash the original ECU. MaptunerX provides ability to quickly and easily load performance tunes directly into your stock ECU eliminating downtime that results from shipping for programming. Maptun Tunes are calibrated to provide optimum fuel delivery, ignition timing and rev limits. OEM dash display, engine diagnostics & engine safety functions are retained. MaptunerX features a full color, touch screen display, ability to restore stock tune settings and access to Maptun's tune library and technical support.

Our new Sea-Doo RXT/GTX 300 Power Filter feeds your supercharged engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, precision-formed intake duct that attaches to the supercharger via a large 4” adapter. Cool air enters the system via an over-sized K&N filter element. Simple installation & quick removal allow easy access for engine maintenance. Includes water-repellent pre-filter and detailed installation instructions.

NOTE: Installation of this Power Filter Kit requires either of the following two products for the engine breather. 

  • Catch Can Kit: Redirects power-robbing crankcase fumes and oil vapor to a remote reservoir that can be drained as needed.
  • Power Filter Breather Hose: Returns crankcase fumes and oil vapor to engine.

Seadoo 300 XX Charger 135 x 3mm
Delivers up to 17.5 psi of boost pressure. Impeller is 22 Grams lighter than stock providing improved reliability of clutch and bearings. Spacer & impeller install quickly and easily onto stock supercharger base plate.

High performance 1100cc fuel injector kit supplies modified Sea-Doo engine.

Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm.
Includes 12 lightweight, precision-machined titanium valve retainers and 6 OE rocker arm shaft bolts that must be replaced during installation.
A must for IJSBA & APBA Stock Class race craft.

NOTE: Does not work with iS & aS suspension deck models.

RIVA Free Flow Exhaust replaces the restrictive sound suppression system located between the waterbox and hull exit on your watercraft. Improves engine performance by reducing back pressure and harmful detonation. Includes mandrel bent aluminum tubing that is powder coated to prevent corrosion, high-temp silicone replacement coupler and installation instructions.


1 MaptunerX
1 Standard Tune Library License
1 BRP Cable
1 set VT1100 Fuel Injectors
1 RIVA XX Charger 135mm
1 RIVA Power filter
1 RIVA Free Flow Exhaust