Introducing the ultimate high-performance supercharger for Sea-Doo 325 engines. Our 325 XX-Charger features an advanced billet impeller developed in collaboration with TiAL USA. The optimized blade profiles dramatically increase airflow and boost efficiency, delivering massive gains in horsepower and torque. The result is explosive acceleration, incredible midrange and increased top speed.

This complete modified supercharger unlocks the full potential of the 325 engine platform - producing a solid 400 horsepower at 9200 RPM with only upgraded valve retainers, fuel injectors and RIVA/Maptuner ECU calibration.

Boost Performance:

18 PSI @ 8,000 RPM
20.6 PSI @ 8,500 RPM
22.5 PSI @ 9,000 RPM
23.3 PSI @ 9,200 RPM
24.5 PSI @ 9,500 RPM
Key Features:

Produces 400 HP @ 9200 RPM
Co-developed with TiAL USA
Lightweight billet impeller design
Utilizes OEM shaft to maintain factory tolerances
Professionally installed by RIVA Racing
Extensively tested by the RIVA Race Team
IJSBA Limited Class legal
Required Engine Upgrades:

Valve Retainer Upgrade Kit
VT1100 Fuel Injectors
RIVA / Maptuner 'STAGE 3 325 9500 VT11' Calibration
Required Add-ons:

Bosch VT1100 Fuel Injector Kit
VT1100-INJK

RIVA Valve Retainer Upgrade Kit
RS19220-SRU

We start with a complete, new 325 supercharger assembly. Our professional technicians hand assemble each XX-Charger using specialized tools to remove the stock impeller and install our XX-Charger Impeller onto the OEM supercharger shaft. This preserves factory tolerances - ensuring perfect balance, accuracy and reliability. No machining of front & rear housing is required for installation.

We tested extensively on our in-house engine Dyno and with the RIVA Race Team for over 1 year, including the grueling “2025 Jet Around Cayman” 60-mile offshore endurance race and Aquabike World Championship Racing Series.

Manufactured in the USA by TiAL exclusively for RIVA Racing.

Impeller Weight:

RIVA XX: 74 grams
Stock: 86 grams
* = iDF Delete Kit required for GTX Limited 325 models.

325 XX-Charger Impeller Option: We also offer our XX-Charger Impeller as an upgrade option for your supercharger where our professional technicians perform the installation at RIVA. Click here for details.

Disclaimer: Due to the intended use of this competition component it is sold without any express or implied warranty of merchantability or fitness for a particular purpose. RIVA Racing shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to damage, or loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchaser, which may arise and/or result from sale, installation or use of this XX-Charger. Installation of this XX-Charger could impact the vehicle manufacturer’s warranty coverage.