Riva Yamaha GP1300R 05-08 Stage 1 Kit

RIVA Performance Power Filter is installed. Screen-type element mounts directly onto opening at front of original flame arrestor case replacing the restrictive baffling system. Provides improved throttle response and all around performance gains.

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 into the voids of the OE pump inlet shoe significantly reducing cavitation.

RIVA Top-Loader Intake Grate & Performance Ride Plate are installed. Our ride plate and intake grate combo increase top speed, significantly enhance handling characteristics and create better "hook up" in choppy water conditions. Prop spin and cavitation found with the stock grate is greatly reduced.

Solas DynaFly Impeller is installed. After extensive testing we found the 14/20 to be the best all around impeller for our Stage 1 Kit. Billet nose cone included.

Trim Tabs are installed in place of original trim tabs. Designed to trim craft up for increased top speed and serve as a quick fix to unwanted proposing. Tabs are 2.5 inches longer than stock.

NOTE: RIVA Performance Kits intended for competition use only.