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       You are here: Home > Watercraft > Performance Packages > Kawasaki > Ultra 250X `07 Riva Stage 1 Kit
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Kawasaki Ultra 250 Sponson Kit
RIVA Ultra 260 250 Pro-Series Sponson Kit
Delivers a significant improvement over the stock sponsons with superior blade design and backing plate. Includes a bulletproof mounting system that features three anchor points with billet inserts in sponson fins. Backing plate is precision machined from high strength billet aluminum that is anodized to prevent corrosion. Sponson depth and forward/aft position are adjustable to control the amount of influence they have on the craft. Easy installation requires no drilling.

Our Price: $389.95
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Kawasaki Ultra 260 Performance Power Filter Kit
RIVA Ultra 260/250 Performance Power Filter Kit
RIVA Performance Power Filter is installed providing greatly improved performance by replacing restrictive stock intake system. Delivers an increased volume of air via a large 4" diameter intake duct and oversized K&N filter element. Includes water repellant pre-filter cover for primary filter.

Our Price: $249.95
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Kawasaki Ultra 260 Ride Plate
RIVA Ultra 260 / 250 Performance Ride Plate
Dramatically Improves Top Speed (+2mph)
Improves Handling
Reduces Porposing
Provides Quicker Planing
Integrated Reverse Gate Brackets
Powder Coated to Prevent Corrosion
IJSBA Race Legal

Our Price: $229.95
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RIVA Ultra 250X Free Flow Exhaust Kit
RIVA Ultra 250X Free Flow Exhaust Kit
Enables you to bypass or remove secondary muffler (weight savings of +10lbs) improving engine performance by reducing back pressure and harmful detonation. Mandrel bent aluminum exhaust tube is lightweight and powder coated to resist corrosion. Included billet exhaust tip (also sold separately) with laser etched graphics is anodized to prevent corrosion. High temperature silicone couplers included with detailed installation instructions.

Our Price: $199.95
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kawasaki Intake Grates
RIVA Ultra 260/250 Intake Grate
Our top-loader intake grate features a unique tapered wing design that eliminates prop spin and cavitation while delivering enhanced acceleration and 2mph additional top-speed. Deep side rails improve stability and handling. Durable black race coating protects from corrosion. Race Legal. Fits all Ultra models.

Our Price: $199.95
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Kawasaki Valve Cover Block off
Riva Kawasaki Valve Cover Block-off, 4-stroke Engine
Currently Unavailable - See R&D Part # 331-25000

Our Valve Cover Block-off Kit is designed to seal off the ports on the valve cover when removing the emission control system for racing applications. There are two major benefits to removing the factory emissions system: 1) For racing applications it is recommended to remove all necessary equipment from your craft for increased reliability and reduced maintenance. This also cleans up plumbing in the engine compartment providing a clean look. 2) To accurately monitor air/fuel ration for tuning purposes you must remove the emissions system. The OEM system pumps fresh air into the exhaust stream throwing off air/fuel ratio. Plates are precision machined from billet aluminum and anodized to prevent corrosion. Includes two block-off plates and installation instructions.

Our Price: $39.95
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