FX-HO `08 RPM Kit
- Stock 59~60 MPH @ 10,100 RPM
- RPM Kit 64 MPH @ 10,300 RPM
Note: All testing performed with 1/3 tank of fuel; trim neutral.
RIVA Performance Power Filter is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.
RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between waterbox and hull exit reducing backpressure and engine operating temperatures.
RIVA Pump Seal Kit is installed. Location specific molded inserts are siliconed in to the voids of the OE transom plate and RIVA Top-Loader Intake Grate significantly reducing cavitation.
Top-Loader Intake Grate is installed. Prop spin and cavitation found with the stock grate is greatly reduced along with the modified FX's tendency to drop on its nose when the throttle is let off at high speeds.
Solas DynaFly Impeller is installed. After extensive impeller testing we found the Solas DynaFly to be the best all around impeller. Billet impeller nose cone included.
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.
NOTE: RIVA Performance Kits intended for competition use only.
These are additional performance upgrade parts that can be purchased individually to improve the performance kit.
- Item Requires Shipping