FZR | FZS Riva Stage 3 Kit
Stock 67 MPH @ 7,500 RPM
Stage 1 Kit 70-71 MPH @ 7,600 RPM
Stage 2 Kit Coming Soon
Stage 3 Kit
80+ MPH @ 8,300 RPM
Parts Price Total: $9,302.10 $8,828.00 Price if Purchased as Kit:
You save $474.10!
RIVA ViPEC FX-SHO FZR FZS Pro-Series ECU
Our Pro-Series ECU provides a huge performance advantage to the Yamaha 1.8L Supercharged Engine delivering over 50hp to the stock engine. ECU is fully programmable with either RIVA supplied mapping or user defined parameters. Most calibrations require use of RIVA Fuel Pressure Regulator Kit and 91+ octane pump fuel. Plugs directly into factory wiring harness via waterproof connectors.
Fits Models FX-SHO FZR FZS
RIVA Pro-Series Gen-2 Power Cooler Kit FX-SHO FZR FZS
The RIVA GEN-2 Power Cooler intercooler system features a new high-capacity
cooler element that is rated for up to 500hp! Huge cooler core resists heat soak
under the most demanding high boost/high temperature applications. Delivers an
increase of 20 peak horsepower over OEM intercooler providing arm-wrenching
results on the water. Quality manufacturing of cooler core delivers minimal
pressure drops and excellent thermal efficiency. The cooling element is
dramatically more efficient than the stock unit with exit temperatures averaging
60°F cooler than stock. This delivers cooler, denser air for increased
performance throughout the RPM range. Innovative design allows easy disassembly
of cooler element & ducting for maintenance and cleaning. Features
integrated blow-off valve mount that will accept RIVA/HKS Blow-Off Valve kit
(sold separately) for improved supercharger reliability and performance. Power
Cooler installs securely with shock absorbing rubber mounting system and
stainless steel hardware. Kit contains all necessary hardware and detailed
Key Features Include:
Large cooler element rated for 500hp.
Designed to allow easy disassembly of cooler element & ducting for
Integrated mount for optional RIVA/HKS Blow-Off Valve Kit (sold separately).
Includes billet "high flow" pump strainer providing a dedicated waterline to
Replaceable sacrificial zinc anodes protect cooler element from corrosion.
Quick release flushing system keeps Power Cooler at peak
performance. Note: Power Cooler requires use of one of the following
Fits Models FX SHO / FZR / FZS
RIVA FX-SHO | FZ Supercharger Gear Dampener
RIVA RACING FX-SHO/FZ Supercharger Gear Dampener Our damper unit is designed to protect gear teeth & sprag clutch on
supercharger drive system. Dampener features innovative cushioning mechanism
that insulates gears from harsh clutch engagement. Directly replaces OEM
intermediate gear located between clutch and supercharger shaft. Constructed
with superior materials and thicker gear teeth than OEM. Designed to be used
with new style 2011/12 Yamaha clutch (part# 6S5-17800-10-00) and
RIVA Supercharger Shaft Upgrade Kits .
Key Features Include:
Dampener mechanism protects supercharger drive gears.
Improves sprag clutch durability.
Stronger materials and thicker gear teeth than OEM.
Directly replaces OEM intermediate gear.
No auxiliary clutch systems or maintenance required.
Superior bearing material & thickness.
Use with new style 2011/12 Yamaha clutch and RIVA Supercharger Shaft Kits.
Manufactured exclusively for RIVA Racing by HKS.
Riva High-Boost Supercharger Impeller, FZR, FZS, FX-SHO
Produces 16psi @ 8,000rpm
Riva 160mm Pump Housing Upgrade - SHO FZS FZR
Riva Racing 160mm YF Series Stainless Steel Wear Ring for SHO FZS FZR
Our heavy-duty 160mm wear ring is the answer to keeping your FX-SHO or FZ pump hooked up when horespower has exceeded the capacity of original 155mm pump. Durable stainless liner with aluminum housing is a direct replacement for OEM wear ring and is designed to accept RIVA 160mm impellers. Works great with original 155mm pump stator or aftermarket 160mm stators.
*160mm Impeller Sold Seperately
RIVA FX-SHO FZR FZS Fuel Pressure Regulator Kit
Our Fuel Pressure Regulator Kit provides the precision pressure control necessary to compliment aftermarket ECU applications on the 'SHO' engine. Kit is fully assembled & mounts securely on top of fuel tank via sturdy aluminum bracket. High quality billet pressure regulator can adjust base pressure from 25 to 80 PSI. Unit can also be set up as rising rate fuel pressure regulator at a 1 to 1 ratio providing one additional pound of fuel pressure for every pound of boost gain. Plugs directly into original fuel system with OEM connectors and features a large 3/8" fuel return line that is routed through supplied rubber fuel tank cap. Includes integrated liquid-filled pressure gauge and billet Fuel Pressure Regulator Block-Off necessary for removal of stock fuel pressure regulator in fuel tank.
Key Benefits Include: Precision fuel pressure control with optional rising rate function. High quality stainless steel liquid-filled pressure gage. Large 3/8 fuel return line. Includes billet Fuel Pressure Regulator Block-Off. Easy bolt-on installation with OEM fuel connectors. Includes complete installation instructions & tuning guide.
Pro Series Reduction Nozzle Yamaha FX SHO FZR FZS GPR
Riva Pro-Series Reduction Nozzle is ideal for tuning your Yamaha pump combination to maximize performance. Nozzle exit diameter can be easily changed via interchangeable ring system. Looking for more RPM or acceleration power? Insert a larger diameter ring. Want more top speed or less RPM? Install a smaller diameter ring. Nozzle includes three precision-machined stainless steel rings in graduated sizes (81, 82 & 83mm). Additional ring sizes available.
Note: Nozzle eliminates water spout function to maximize performance and conform to racing safety rules.
RIVA/Skat-Trak 'R'-series Swirl Impeller (160mm)
RIVA | Skat-Trak 'R'-series Swirl Impeller - 160mm - 15/23 Pitch
To be used with Riva 160mm Pump Housing Upgrade Can be ordered in different Pitch Sizes - Contact Customer Support
Riva Power Filter Kit, YAM FZR/FZS/FX-SHO
Riva Power Filter feeds your 1.8L Supercharged Engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, precision-formed intake duct that attaches to the supercharger via a large 4" adapter. Cool air enters the system via an oversized K&N filter element. Includes waterrepellent pre-filter and detailed installastion instructions
Pro- Series Blow-Off Valve kit FX- SHO FZR FZS
High quality HKS Blow-off Valve reduces wear and tear on clutch & drive gears of supercharger and eliminates heat soak in discharge tube. For use with RIVA FX-SHO/FZR/ FZS Power Cooler (part# RY17040-PC). HKS Super SQV (Super Sequential Blow Off Valve) features unique sequential valve structure and a differential pressure control system, allowing for a broad operation boost range. Includes vacuum line and specific fittings necessary for installation.
RIVA FZR | FZS | SHO Top-Loader Intake Grate
Riva revolutionary new intake grate for FZR/FZS delivers the ultimate in speed, hook up & strength. All new design features oversized top loader wing and optimized inlet ramp for closed course and offshore racing. Bulletproof stainless steel construction makes this grate virtually indestructible and eliminates the need for additional restrictive support bars. Race bred design significantly reduces cavitation and provides superior handling along with unmatched durability in extreme conditions.
Key Benefits Include:
Dramatic increase in hook up due to new top-loader wing design & inlet ramp.
Improved top speed in rough water conditions.
No top speed loss on smooth water.
Race bred design provides excellent handling.
Significantly reduces cavitation.
Bulletproof stainless steel construction tested to 90mph.
RIVA FZ Performance Ride Plate, Yamaha FZR / FZS
Our new FZ Ride Plate delivers the perfect balance of top speed and improved handling in a variety of water conditions and speeds. Its race bred design features deep channels for improved acceleration and traction in turns. Provides excellent straightline stability at high speed with reduced porposing. Utilizes stock ride plate support brackets and accepts OEM speedo sensor.
Key Benefits Include:
Superior handling performance.
Quicker planing & improved top speed.
Improved straight line tracking at high speed.
Race bred design.
Improved acceleration, cornering and straight line handling.
Tunable with included shims.
Powder coated to prevent corrosion.
IJSBA/APBA Race Legal and Race Proven.
RIVA FZR FZS FXSHO Free Flow Exhaust Kit
Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft. Improves engine performance by reducing back pressure and harmful detonation. Includes mandrel bent aluminum tubing that is powder coated to prevent corrosion, high-temp silicone replacement coupler and installation instructions.
Fits Models FX SHO FZR FZS 2009 FX HO
RIVA FZR FZS Pump Seal Kit
Dramatically reduces cavitation and prop spin. Location Specific, molded inserts fill the voids in intake grate that could bleed air into pump causing cavitation. Recommended for modified craft using aftermarket intake grates.
Nozzle Ring for RY23040-N
Our Pro-Series Reduction Nozzle is ideal for tuning your Yamaha pump combination to maximize performance. Nozzle exit diameter can be easily changed via interchangeable ring system. Looking for more RPM or acceleration power? Insert a larger diameter ring. Want more top speed or less RPM? Install a smaller diameter ring. Nozzle includes three precision-machined stainless steel rings in graduated sizes (81, 82 & 83mm). Additional ring sizes available. Note: Nozzle eliminates water spout function to maximize performance and conform to racing safety rules.
84 mm Ring Recomended with Stage 3 Applications
RIVA FZR/FZS/SHO Intake Manifold Upgrade Kit
Our Intake Manifold Upgrade Kit enables your SHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the increased boost provided by our Intake Manifold Upgrade Kit.
RIVA Engine Breather Upgrade Kit FXSHO FZR FZS
Easy to install Engine Breather Upgrade Kit 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. Also improves intercooler efficiency by preventing the oil sludge coating that lowers thermal efficiency. Easy installation retains highly efficient OEM air/oil separator system. Kit includes pre-formed hose with attached K&N filter along with all necessary hardware & instructions.
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