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RXT-X/GTX Ltd. 300 2018 - 2019

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RXT-X/GTX Ltd. 300 2018-19 Stage 1 Kit

RXT-X/GTX Ltd. 300 2018-19 Stage 1 Kit

RS-RPM-RXTX300-18-1

This kit delivers an awesome level of performance (+8mph on U.S. models) through easily installed electronic and air intake components. No internal engine modifications are required. RIVA Speed Control Override Module is installed. Module removes the restrictive GPS controlled speed limi...

  • Retail Price
    $1,030.85

  • Discounted Price
    Sale: $876.22

    • Save: 15% off
    Add to Cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 1 Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 1 Kit

  • Retail Price
    $1,030.85

  • Discounted Price
    Sale: $876.22

    • Save: 15% off

    This kit delivers an awesome level of performance (+8mph on U.S. models) through easily installed electronic and air intake components. No internal engine modifications are required. RIVA Speed Control Override Module is installed. Module removes the restrictive GPS controlled speed limi...

    Add to cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 2 Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 2 Kit

    RS-RPM-RXTX300-18-2

    This kit delivers an awesome level of performance (+13mph on U.S. models) through easily installed electronic and air intake components. No internal engine modifications are required. RIVA MaptunerX BRP Bundle is utilized to reflash original ECU. MaptunerX provides ability to quickly and eas...

  • Retail Price
    $1,992.75

  • Discounted Price
    Sale: $1,693.84

    • Save: 15% off
    Add to Cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 2 Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 2 Kit

  • Retail Price
    $1,992.75

  • Discounted Price
    Sale: $1,693.84

    • Save: 15% off

    This kit delivers an awesome level of performance (+13mph on U.S. models) through easily installed electronic and air intake components. No internal engine modifications are required. RIVA MaptunerX BRP Bundle is utilized to reflash original ECU. MaptunerX provides ability to quickly and eas...

    Add to cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 3 Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 3 Kit

    RS-RPM-RXTX300-18-3

    KIT INCLUDES Engine & Drivetrain RIVA Maptuner Nano BRP Bundle (All except SPARK) RS210SC-B-1 Bosch VT1100 Fuel Injector Kit VT1100-INJK RIVA Sea-Doo 300 XX-Charger RS17140-135-1 RIVA Sea-Doo 4-TEC Valve Retainer Upgrade Kit RS19050-SRU-1 Air Intake RIVA Sea-Doo 2018-19 RXT/GTX ...

  • Retail Price
    $3,881.50

  • Discounted Price
    Sale: $3,299.28

    • Save: 15% off
    Add to Cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 3 Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 3 Kit

  • Retail Price
    $3,881.50

  • Discounted Price
    Sale: $3,299.28

    • Save: 15% off

    KIT INCLUDES Engine & Drivetrain RIVA Maptuner Nano BRP Bundle (All except SPARK) RS210SC-B-1 Bosch VT1100 Fuel Injector Kit VT1100-INJK RIVA Sea-Doo 300 XX-Charger RS17140-135-1 RIVA Sea-Doo 4-TEC Valve Retainer Upgrade Kit RS19050-SRU-1 Air Intake RIVA Sea-Doo 2018-19 RXT/GTX ...

    Add to cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 3 PLUS Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 3 PLUS Kit

    RS-RPM-RXTX300-18-3.5

    KIT INCLUDES Engine & Drivetrain RIVA Maptuner Nano BRP Bundle (All except SPARK) RS210SC-B-1 Bosch VT1100 Fuel Injector Kit VT1100-INJK RIVA Sea-Doo 300 XX-Charger RS17140-135-1 RIVA Sea-Doo 300/260/255/230/215 Racing Camshaft RS19140-BCS RIVA Sea-Doo 4-TEC Valve Retainer Upgrad...

  • Retail Price
    $4,881.45

  • Discounted Price
    Sale: $4,149.23

    • Save: 15% off
    Add to Cart
    RXT-X/GTX Ltd. 300 2018-19 Stage 3 PLUS Kit

    RXT-X/GTX Ltd. 300 2018-19 Stage 3 PLUS Kit

  • Retail Price
    $4,881.45

  • Discounted Price
    Sale: $4,149.23

    • Save: 15% off

    KIT INCLUDES Engine & Drivetrain RIVA Maptuner Nano BRP Bundle (All except SPARK) RS210SC-B-1 Bosch VT1100 Fuel Injector Kit VT1100-INJK RIVA Sea-Doo 300 XX-Charger RS17140-135-1 RIVA Sea-Doo 300/260/255/230/215 Racing Camshaft RS19140-BCS RIVA Sea-Doo 4-TEC Valve Retainer Upgrad...

    Add to cart

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    The GreenHulk PWC Performance Parts Store has been the number one trusted source for PWC enthusiasts since 2006. We carry only the aftermarket parts and accessories for your Sea Doo, Yamaha Waverunner and Kawasaki Jetski that have been tested and proven. In addition, most of our performance parts have been discussed in great depth by some of the most skilled PWC tuners in the world on our forums at GreenHulk.net. In addition to personal watercraft performance upgrades, we sell factory OEM replacement parts for all skis, Honda, Yamaha, Kawasaki, Suzuki and Can-Am dirt bikes, street bikes, Quads, ATV, UTV and Yamaha outboards.

    We offer the absolute best customer service in the industry, guaranteed. We look forward to serving your needs!

     2026 PWC Performance