RXP-X 300 2021~23 Stage 4 Kit

This kit delivers a significant level of performance (+20mph on U.S. models) through easy to install engine upgrades. No internal engine modifications are required. Requires use of fresh premium octane pump fuel (91~93).

The Maptuner Nano Bundle delivers instant plug-in horsepower!

Includes everything you need to connect to and reflash your watercraft's ECU in one complete package.

Flash your vehicle's ECU for more power, monitor and log critical engine data, read & clear error codes all from your smartphone! This revolutionary app based device is controlled with your phone via wireless Bluetooth connection. Intuitive & easy to use with a few simple steps!

There is no limit to the number of vehicles or tunes you can reflash with the Nano. Simply purchase one tuning license for each vehicle that you would like to program. This gives you 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.

Features and Benefits:

• Wireless Bluetooth connectivity to Android or iOS smartphone.
• Switch between performance tunes quickly & easily.
• Restore stock tune settings if you wish.
• Allows reading & clearing fault codes and throttle reset.
• Includes live monitoring & data logging of critical engine data.
• Access to our World Famous Tuning Library.

Bosch VT1100 Fuel Injector Kit is installed. High performance 1100cc fuel injector kit supplies modified Sea-Doo engines with the necessary amount of fuel to produce reliable horsepower.

RIVA Power Filter Kit is installed. Air intake is relocated forward away from hot engine delivering cold, fresh air to engine via large 4" smooth-bore ducting that is attached to supercharger with unique velocity stack and sturdy billet clamps.

RIVA Catch Can/Engine Breather Upgrade Kit is installed. Easy to install catch can/oil breather eliminates power-robbing crankcase fumes and oil vapor from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil. Also improves intercooler efficiency by preventing the oil sludge coating that lowers thermal efficiency.

RIVA 300 XXX Charger is installed. A complete supercharger assembly featuring a lightweight billet aluminum 142mm impeller that is precision balanced to deliver smooth operation. Includes billet spacer and machined front & rear housings that increase interior volume producing huge performance gains.

RIVA Intake Manifold Upgrade Kit is installed. Removal of restrictive screen element from inside of intake manifold enables your engine to produce more horsepower through increased boost pressures (+1lb). Special o-ringed, billet block-off plug with integrated fitting for aftermarket boost pressure gauge fills opening left after removal of screen element.

RIVA Racing Camshaft is installed. Camshaft delivers a serious gain in horsepower and torque with its optimized valve lift profile.

RIVA Valve Retainer Upgrade Kit is installed. Titanium valve retainers increase reliability of modified engine by reducing the possibility of valve float at high RPM. To ease installation of Valve Train Upgrade Kit we offer a unique Valve Compression Tool that allows installation without removal of cylinder head saving you time and money. IJSBA Stock Class legal.

RIVA Free Flow Exhaust Kit is installed. Kit allows removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure & restriction.

This Solas impeller was designed in cooperation with the RIVA Racing Research & Development Team specifically for use with this performance kit. Impeller design reduces cavitation, increases acceleration and maximizes engine horsepower.

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