Our Exhaust Race Plate allows easy removal of restrictive honeycomb element on Ultra 310 & 300 models for competition use. OEM exhaust element is located inside exhaust system obstructing exhaust flow and producing...
Presenting the ultimate performance supercharger for Sea-Doo 300 engines! The all new RIVA XXX-Charger is a complete supercharger assembly featuring a lightweight billet aluminum 142mm impeller that is precision...
Our ultra high strength crankcase main stud kit is essential equipment when upgrading internal components on your high boost Yamaha engine. Precision machined from premium grade 8740 alloy and heat treated to exacting...
RIVA Racing's Yamaha SuperJet Power Filter Kit is designed to increase airflow to your carburetors allowing your engine to produce more horsepower. Kit fits original 38mm carburetors. Includes stainless capped,...
Our Valve Train Upgrade Kit increases the reliability of your modified engine by reducing the possibility of valve float at high rpm. Includes lightweight, precision-machined titanium valve retainers, racing valve...
Introducing the ultimate race proven steering system for 2017~20 Yamaha GP1800 & 2015~19 VXR/VXS models! Design features billet aluminum construction for maximum strength & rigidity. Directly replaces bulky OEM...
HKS Super SQV (Sequential Blow Off Valve) uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low boost to high boost. Its Pull-Type...
Precise ignition timing is essential to produce maximum horsepower. However, one timing setting is not ideal for an engine?s entire rpm range. The dynamics of air and fuel flow into the engine as well as the speed...