Our RIVA Jetboat Yamaha Performance Blow-off Valve Kit for SVHO/SHO improves supercharger reliability and performance by relieving unwanted pressure during off-throttle operation. Reduces supercharger clutch & gear wear and eliminates heat soak in discharge tube. High-strength silicone hose with int...

Our Performance Air Filter directly replaces the stock paper element delivering performance through greatly improved air flow without sacrificing filtration or reliability. Built to our specifications, the unique pleated filter element is washable, reusable and built to last. These automotive replac...

Our Intake Manifold Upgrade Kit enables your TR-1 naturally aspirated engine to produce more horsepower by delivering increased air flow. Precision machined billet sleeve directly replaces restrictive mesh element in OEM plastic intake manifold. Provides improved low end punch and mid-range pull. In...

Our Performance Air Filter directly replaces the stock paper element delivering performance through greatly improved air flow without sacrificing filtration or reliability. Built to our specification, the unique pleated filter element is washable, reusable and built to last. Key Features Include:...

The ultimate racing and recreation covers for your Yamaha Watercraft. These covers are hand made in the USA 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 w...

The ultimate racing and recreation covers for your Yamaha Watercraft. These covers are hand made in the USA 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 w...

Our Power Filter feeds your Yamaha HO engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, K&N filter element that is attached to throttle body via a precision machined velocity stack. Also features an easy to insta...

Our billet Block-off Kit covers the opening left in the hood when mirrors are removed for competition. Enhances craft's sleek lines and aerodynamics. Easy installation requires no special tools. Precision machined from billet aluminum and anodized to prevent corrosion. Includes rubber mounting pad &...

Dramatically reduce cavitation and prop spin with our easy to install Pro Pump Seal Kits. Location specific, molded inserts fill the voids in OEM pump inlet shoe that bleed air into pump causing cavitation. Recommended for modified craft using aftermarket intake grates. Includes detailed installatio...

Our Intake Manifold Upgrade Kit enables your Yamaha 1.8L engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull thr...