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GP1800 SVHO Stage 1 PLUS Kit

Parts Price Total $1986.55
Special "Kit" Price $1885.30
Was: $1,986.55
Sale: $1,885.30
Save: 5%
Save: $101.25


Our Stage 1 PLUS Kit delivers a huge performance gain with simple bolt-on modifications! Expect awesome acceleration and a top speed increase of 14 MPH.


MaptunerX programmer is utilized to reflash your original ECU (Engine Control Unit) for added performance.


The MaptunerX Bundle delivers instant plug-in horsepower! Quickly and easily load our Stage 1 performance tune into your Yamaha ECU eliminating the need to ship out your ECU for programming. Features a slick, full color, touch screen display. There is no limit to the number of vehicles or tunes you can reflash with the MaptunerX. Simply purchase one additional tuning license for each vehicle that you would like to program. The MaptunerX features a slick, full color, touch screen display for east operation. Includes full access to RIVA's World Famous Tuning Library along with unmatched technical support. Easily switch between performance tunes and then back to stock settings if you wish.


MaptunerX Features and Benefits:

  • Awesome acceleration and a top speed increase of 9 MPH!
  • Reflash your ECU instantly without shipping it out for programming.
  • Switch between performance tunes quickly & easily.
  • Restore stock tune settings if you wish.
  • Easy to use, full color, touch screen display.

    RIVA Performance Power Filter Kit is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.


    RIVA Engine Breather Upgrade Kit is installed. Eliminates power-robbing crankcase emissions from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil.


    RIVA Engine Cooling Upgrade Kit is installed. Kit improves water flow to Yamaha SVHO engine and intercooler for improved performance & reliability. Greatly reduces loss of power due to "heat fade" on stock and Stage 1 modified craft.


    Solas Concord Impeller is installed. New design incorporates a large blade area and superior hub design that deliver increased acceleration and top speed. Billet nose cone included.


    RIVA Performance Ride Plate is installed. Our ride plate increases top speed and significantly enhances handling characteristics.


    Note: We also offer Solas 13/18 pitch impeller (YV-CD-13/18) that produces approximately 300 more RPM than 13/20 pitch impeller (YV-CD-13/20). Although target RPM for this kit is 8100, RPM is often reduced by high altitude operation or extreme ambient heat and humidity. 13/18 impeller can be utilized to achieve target RPM under these extreme conditions.



    Engine Upgrade Kit

    Our Engine Internals Upgrade Kit delivers bulletproof reliability to the Yamaha 1.8L engine in racing and high boost applications when you're pushing it to the limit and looking for maximum dependability. Click here to learn more.

    Additional Upgrades

    These are additional performance upgrade parts that can be purchased individually to improve the performance kit.


    • RY-RPM-GP18-1.5-18
    • RY-RPM-GP18-1.5-18
    • Performance Kits
    • New

    Shipping Information

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