RIVA High Performance Valve Kits are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is...
TDR Silencer Baffled Waterbox. This baffle design waterbox is for the Yamaha Superjet rider who wants a power increase with a deep throaty sound. This waterbox design works well with mildly and highly modified Yamaha...
Our custom rear traction mat with oversized RIVA Racing logo might tip off the competition to your power source! A RIVA Racing logo and design is laser engraved to reveal details in blue on our mat providing an...
Our cool running Thermostat Kit reduces the operating temperature of your modified 4-TEC? engine by 30?F for maximum reliability and performance.Kit includes:Replacement thermostatBillet coolant inlet flangeStock...
The ultimate racing and recreation covers for your Yamaha GP1800 or VXR Watercraft. These covers are handmade in the USA with the finest materials including Ballistic Nylons, Ultra-Grade Marine Vinyl, and proprietary...
This kit significantly improves the performance & reliability of your intercooler system. This is an essential upgrade for all racing and recreational performance craft.Key Features Include:Direct upgraded replacement...