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 extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that...

Introducing our all new Ride Plate for 2022+ Kawasaki Ultra 310 & 2023+ Ultra 160 models. We incorporated the race proven and championship winning design from our extensive line of ride plates to create the perfect balance of increased top speed (3+ mph) and improved handling no matter the condition...

Our Ultra 310 ‘K3’ Supercharger Pulley Kit produces +3 PSI over the OEM supercharger pulley delivering incredible horsepower and torque. The 101mm diameter main pulley is constructed of high strength billet aluminum and coated with a military spec material for improved belt wear and corrosion re...

Our Exhaust Race Plate allows easy removal of restrictive honeycomb element on Ultra 300 for competition use. OEM exhaust element is located inside exhaust manifold obstructing exhaust flow and producing excessive heat. Installation of Race Plate increases horsepower and reduces under-hood operating...

Delivers greatly improved acceleration and increased top speed by replacing the restrictive stock intake system. The Power Filter feeds your supercharger with an increased volume of air via a large 4” diameter intake duct and proprietary oversized, stainless-steel mesh filter element that is certi...

This SCOM effectively removes the speed limiter on both US and International models. The RIVA Speed Control Override Module removes the restrictive speed control function on Kawasaki Ultra 310 & 300 models delivering significant increases in top speed with stock ECU. Easy to install module delive...

he ultimate racing and recreation covers for your Kawasaki Watercraft. These covers are made with the finest mateials including high-tec Kevlar, ballistic nylons, marine grade canvas and Jettrim's own non-slip naugahyde non-slip traction material. Available in a variety of colors to match your water...

The ultimate racing and recreation covers for your Kawasaki Watercraft. These covers are made with the finest materials including Ballistic Nylons, Ultra-Grade Marine Vinyl, plus Jettrim's exclusive Nada-Hyde, Non-Slip Traction Material. Available in a variety of colors to match your watercraft's pa...

The ultimate racing and recreation covers for your Kawasaki Watercraft. These covers are made with the finest materials including Ballistic Nylons, Ultra-Grade Marine Vinyl, plus Jettrim's exclusive Nada-Hyde, Non-Slip Traction Material....

This kit eliminates the factory wastegate that is prone to fail and leak boost resulting in decreased performance. The factory wastegate is designed to open at 16.9psi, but often vents at lower boost levels due to wear on the internal spring mechanism. Kit includes precision machined billet aluminum...