Riva Yamaha 2021-2024 GP1800R Stage 3 Kit

This kit delivers an awesome level of performance (+20 mph) through easy to install modifications. Expect huge gains in acceleration and torque along with fantastic top speed. Requires use of fresh premium pump fuel (91~93 octane).

Tested by RIVA: Stage 3 | 88 MPH @ 8800 RPM

The MaptunerX Bundle delivers instant plug-in horsepower! Quickly and easily load our Stage 3 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 easy 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:

RIVA Pro-Series 1,000cc Fuel Injector Kit is installed. High impedance fuel injectors deliver additional fuel to modified engines required for high boost applications.

RIVA High Flow Billet Fuel Rail is installed. Large, precision machined body directly replaces restrictive factory fuel rail for improved fuel delivery. Provides increased flow capabilities essential for supporting highly modified engines.

RIVA Power Filter 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 'R3' Supercharger Impeller is installed. Designed to deliver more horsepower and torque throughout the RPM range resulting in excellent acceleration and top speed. Produces 20psi at 9,000 RPM.

RIVA Supercharger Shaft Upgrade Kit is installed. Advanced design dramatically increases the reliability of your supercharger in high boost applications.

RIVA 'GEN-3' Power Cooler Kit is installed. Power Cooler is dramatically more efficient than original intercooler system delivering an increase of 20 peak horsepower. Features integrated TiAL 50mm Blow-off Valve that relieves boost pressure during off-throttle operation reducing supercharger clutch wear and eliminating heat soak in discharge tube. 

RIVA Pro-Series Engine Cooling Upgrade Kit is installed. Kit delivers dramatically improved cooling efficiency to engine and oil cooler for increased performance & reliability. Greatly enhances water flow & pressure by replacing restrictive OEM pump strainer & water fittings with high-flow billet components and superior routing. 

RIVA Valve Retainer Upgrade Kit is installed. Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm.

RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between water box and hull exit reducing backpressure and engine operating temperatures.

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 Pump Seal Kit dramatically reduces cavitation and prop spin. Location specific, molded inserts fill the voids in intake grate ramp that can bleed air into pump causing cavitation. 

RIVA Top-Loader Intake Grate is installed.. Race bred design features oversized top loader wing and optimized inlet ramp for racing applications. Bulletproof stainless steel construction makes this grate virtually indestructible and eliminates the need for additional restrictive support bars.

FOR COMPETITION USE ONLY. KIT NOT FOR USE ON POLLUTION CONTROLLED VEHICLES.