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RIVA Racing Kawasaki Ultra 250x Stage 1 Kit
RIVA Power Filter Kit RIVA Pro-Series Water Box RIVA Free Flow Exhaust Kit RIVA Top-Loader Intake Grate
RIVA Performance Ride Plate RIVA Pro-Series Sponson Kit    
Performance Data Bookmark and Share
Stock 65 MPH @ 7,700 RPM
Stage 1 70 MPH @ 7,850 RPM
 
Note: All testing performed with 1/3 tank of fuel.  
Stage 1 Performance Parts
Part Description QTY Part # Info
Performance Power Filter Kit 1 RK13090 More Product Info
Pro-Series Water Box 1 RK16091-1 More Product Info
Free Flow Exhaust Kit 1 RK16090-08 More Product Info
Top-Loader Intake Grate 1 RK22090 More Product Info
Performance Ride Plate 1 RK21090 More Product Info
Pro-Series Sponson Kit 1 RK26090 More Product Info
Parts Price Total $ 1,679.70  
Special "Kit" Price $ 1,596.00 Add to Cart
 
Stage 1 Performance Overview
This modification delivers the maximum level of performance (+ 4mph) through easily installed air intake, exhaust, and pump enhancements. No internal engine modifications are required.
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.
RIVA Pro-Series Water Box and Free Flow Exhaust Kit are installed. Provides a larger unrestricted exhaust outlet for improved acceleration and top speed. Includes new billet thru-hull outlet and high-temperature silicone couplers.
RIVA Top-Loader Intake Grate are installed. Eliminates prop spin and cavitation while delivering improved handling and acceleration with no loss in top speed.
RIVA Performance Ride Plate is installed. Ride plate provides quicker planing and increased top speed by trimming nose up for reduced drag. Also improves handling and reduces porposing with superior design.
RIVA Pro-Series Sponsons are installed. Our sponsons dramatically improve the handling through their superior blade & backing plate design. Sponson depth and forward/aft position is adjustable to accommodate riding style.
After extensive testing of aftermarket impellers we have determined that the stock impeller provides the maximum performance for both stock & Stage I applications. We will report updates to our impeller recommendation at such time as we find an aftermarket advantage to the stock impeller.
NOTE: RIVA Performance Kits intended for competition use only.
 
Additional Performance Ugrades
Part Description QTY Part # Info
Pro-Series Power Filter Kit 1 RK13096 More Product Info
Bypass Upgrade Kit 1 RK1750-BPUK More Product Info
Mirror Block-off Kit 1 RK5-U250X-MB More Product Info
RIVA/Jettrim Custom Seat Cover 1 RK5-ULTRA-COLOR More Product Info
RIVA Pro-Series Steering System 1 RK20090-U-8.75 More Product Info
Billet Throttle Trigger 1 RY2401COLOR More Product Info
Throttle Trigger Adapter 1 03-05-241 More Product Info
Aluminum Handlebars (32") 1 RY203COLOR More Product Info
Racing Grips (Black) 1 RY206B More Product Info
RIVA Ultra Pro-Series Steering Lower 1 RK20090-L More Product Info
Steering Column Cover
   * For use with UMI Steering only.		 1 RK5-SCC-090 More Product Info