RIVA Performance Power Filter Kit is installed. to increase air flow to motor. No internal carburetor modifications are performed. "Tamper Caps" are removed from high and low speed carburetor adjustment screws to optimize carb settings.


RIVA Cat Removal D-Plate is installed in place of restrictive catalytic converter increasing top-end speed while reducing under-hood operating temperatures and allowing the use of regular 2-storke oil. A high quality stainless steel replica of the plate that is standard equipment on export model Yamaha watercraft without emission controls.


RIVA Cat Temp Sensor Chip is installed to prevent warning lights & beepers from activating when catalytic converter is removed.

RIVA Pump Seal Kit is installed. Location specific molded inserts are siliconed into the voids of the OE pump inlet shoe significantly reducing cavitation.


Top-Loader Intake Grate is installed. Intake grate provides increased top speed through better jet pump efficiency in choppy water conditions. Also, prop spin and cavitation found with the stock grate is greatly reduced, resulting in improved acceleration.


Solas Concord Impeller is installed. After extensive impeller testing we found the Solas 12/18 Concord to be the best all around impeller for stock and the RPM Kit for the XLT/XLL 1200's.