Our Stage 2 Kit provides the ultimate performance increase for your RXT with no heavy internal engine modifications required. We designed this kit to deliver loads of reliable power (+25HP / +7 MPH) with easily installed engine & handling components. Requires the use of 91+ octane pump fuel.
RIVA Performance Power Filter Kit is installed. Power Filter provides greatly improved acceleration and a 150~200rpm increase by replacing restrictive stock intake system. Features a large 3" diameter intake duct and oversized K&N filter element that feeds your Supercharger with a steady diet of cool air. Installs quickly and securely using a silicone coupler and sturdy bracket.
RIVA XX-Charger supercharger impeller & spacer are installed. Our new XX-Charger for 215 engines delivers 12.5 psi of boost pressure producing arm wrenching acceleration and increased top speed. High performance billet impeller & 3mm spacer increase horsepower through superior impeller blade design and larger interior housing volume. Lightweight billet impeller features a sophisticated blade design that is precision balanced to deliver smooth operation. Spacer & impeller install quickly and easily onto stock supercharger base plate. IJSBA Limited Class legal. Includes detailed installation instructions.
42lb injector kit is installed. These 42lb injectors provide proper fueling required for the Gen 3 Super Charger upgrade on this Stage 2 kit.
RIVA 'GEN-3' Power Cooler Kit is installed replacing original intercooler system. Power Cooler is dramatically more efficient than original intercooler system delivering an increase of 15 peak horsepower with exit temperatures averaging 50°F cooler than stock. Features large, unrestricted core that exhibits minimal pressure loss compared to stock intercooler. Includes integrated blow-off valve mount for improved reliability and performance. Pro-Series Blow-Off Valve (sold separately) relieves unwanted pressure during off-throttle operation reducing supercharger clutch wear and eliminating heat soak in discharge tube.
RIVA Rear Exhaust Kit is installed. Kit allows removal of restrictive sound suppression system located between waterbox and hull exit. Improves engine performance by reducing back pressure & restriction. Includes custom molded exhaust tube and billet through hull exhaust outlet. It is necessary to install Rear Exhaust Kit to accommodate RIVA Power Cooler Kit.
RIVA Top-Loader Intake Grate is installed. Unique wing design eliminates prop spin and cavitation while delivering improved handling and top-speed.
Solas 'R'-Series Concord Impeller is a special performance impeller offered exclusively by RIVA and RIVA authorized dealers. This impeller is specifically pitched for our Stage 2 RXT package using a pitch block to ensure accuracy. Billet impeller cone is included.
RIVA Pump Wedge is installed between pump stator and output nozzle. 2° wedge trims up your pump nozzle raising the bow of your craft for less drag substantially improving top-speed. Features a double-sided lip to retain silicone sealant and prevent cavitation.
RIVA Pro-Series Sponson Kit is installed. Our sponsons dramatically improve the handling of the RXT with superior blade & backing plate design. Sponson depth is adjustable to accommodate riding style.
RIVA O.P.A.S. Performance Block-off Kit is installed. Removal of O.P.A.S. System improves handling characteristics for competition use. Removal of O.P.A.S. System is necessary to accommodate RIVA Rear Exhaust Kit. RIVA Racing does not recommend the removal of O.P.A.S. system for recreational use.
NOTE: RIVA Performance Kits intended for competition use only.