Fits: Kawasaki Ultra 250X. R&D Performance 1.05:1 Supercharger Pulleys provide a boost in torque and overall horsepower over the stock pulley. Designed and manufactured from high quality billet aluminum and precision hard anodized to resist belt wear.

Fits: Kawasaki Ultra 250X. R&D Performance 1.1:1 Supercharger Pulleys provide a boost in torque and overall horsepower over the stock pulley. Designed and manufactured from high quality billet aluminum and precision hard anodized to resist belt wear.

Fits: Kawasaki Ultra 250X. R&D Performance 1:1 Supercharger Pulleys provide a boost in torque and overall horsepower over the stock pulley. Designed and manufactured from high quality billet aluminum and precision hard anodized to resist belt wear.

Fits: Kawasaki Ultra 250 Surge and Blowoff Valve Air Filter Kit

Fits: Sea Doo 215 RXP/RXT/GTX-SC. The next generation high-performance replacement impeller that delivers 9lbs of boost @ 8,100rpm in RIVA Stage II applications.

Fits: 2008 Sea Doo 255/215.

Fits: 2006-2007 Sea Doo 215.

Fits: 2004-2005 Sea Doo 215.

Sea-Doo Supercharger Shaft Holder Tool makes servicing your supercharger a snap. Ergonomically designed billet handle allows a sure, firm grip without fatiguing your hand.

Fits: Sea-Doo 215/255/260 Models.

For use with RS17080-ICUK & RS1751-PC Kits installed on 215hp Sea-Doo Stage I & II.

The Riva Blow-off Valve Kit improves supercharger reliability and performance by relieving unwanted pressure during off-throttle operation. Reduces supercharger clutch wear and eliminates heat soak in discharge tube.

For use with RS17080-ICUK & RS1751-PC Kits.

For use with RS17080-ICUK & RS1751-PC Kits installed on 255hp Sea-Doo Stage II & above or 215hp Sea-Doo Stage III & above.

Fits: Sea-Doo 255/260 Models. The new XX2-Charger delivers 15 psi of boost pressure at 8,500rpm producing arm wrenching acceleration and increased top speed.

Presenting the ultimate (drop-in) performance supercharger impeller for the Yamaha 1.8 liter SHO Engine! Produces 11.5psi @ 7,700rpm.

Presenting the ultimate (drop-in) performance supercharger impeller for the Yamaha 1.8 liter SHO Engine! Produces 16psi @ 8,000rpm.

High quality HKS Blow-off Valve reduces wear and tear on clutch & drive gears of supercharger and eliminates heat soak in discharge tube. For use with RIVA FX-SHO/FZ Power Cooler (part# RY17040-PC).

Fits: Yamaha FX-SHO/FZ. The H1 Race Charger was designed for serious racers and tuners who demand the ultimate performance gains.

Performance Blow-off Valve Kit 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.