The RIVA/ARP Sea-Doo Pro-Series Cam Gear Bolt Upgrade Kit is a high-strength bolt kit that directly replaces the OEM cam gear bolts on modified Sea-Doo 1503 & 1630 4-TEC engines. Superior materials and design improve durability under high stress conditions. An essential upgrade for reliable performa...

Our new bulletproof sleeve system is the ultimate foundation for your high performance engine. Engineered specifically for the Yamaha SHO engine by Darton Sleeves, the leader in racing sleeve technology, these sleeves will hold up to extreme punishment in high boost applications. Innovative “Flat-...

The RIVA/Solas Race Pump & Nozzle delivers increased acceleration & top speed along with reduced cavitation. Designed for high performance applications that exceed the limits of original pump efficiency. Features computer designed 159mm/14-vane stator section that is far more efficient than the stoc...

If you're looking for an instant boost of speed and power, look no further than this Solas pump upgrade. This Solas 14-vane pump will put the power of your Sea-Doo straight to the water as it pushes water through. Adding this 161mm pump to your personal watercraft will give you a boost of accelerati...

Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure ac...

Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure ac...

Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure ac...

Designed by RIVA Racing's Development Team this new pump impeller for our 2018+ RXT/GTX 300 Stage 2 Kit produces an additional 2~3mph top speed and +150rpm. This new 159mm pump impeller is an exclusive "R" model and requires installing a smaller 159mm wear ring. This new pump combination is an ea...

Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure ac...

Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure ac...