Introducing the ultimate high-performance supercharger impeller for Sea-Doo 325 engines. Developed in collaboration with TiAL engineers, our XX-Charger Impeller 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.

Installation:
Due to the precision nature of this high-performance upgrade, customers must ship their original supercharger to RIVA Racing. Our professional technicians use specialized tools to remove the stock impeller and install your new 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. When finished, we will repackage your supercharger and ship it right back to you, typically within 1~2 business days. See below for shipping details.

Boost Performance:

18 PSI @ 8,000 RPM
20.5 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
Supercharger Impeller & Installation Upgrade

XX-Charger Impeller & Installation
RS17220-SIU-XX
Required Add-ons:

Bosch VT1100 Fuel Injector Kit
VT1100-INJK

RIVA Valve Retainer Upgrade Kit
RS19220-SRU

Our engineering team worked closely with TiAL USA to design optimized blade profiles that dramatically increase airflow and boost pressure. The result is massive gains in horsepower and torque, producing explosive acceleration and higher top speeds. The XX-Charger impeller is precision balanced and designed to utilize the OEM supercharger shaft, maintaining factory tolerances for smooth operation and long-term reliability.

We tested our XX-Charger Impeller 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.

Quick and easy service!
Step 1: After completing your online purchase please print and complete this form (click here).

Step 2: Package the form and your complete, original supercharger together. Ship directly to:
RIVA Racing (Order Number)
Attention: XX-Charger Impeller Installation Service
3671 N. Dixie Highway
Deerfield Beach, FL 33064 USA

Step 3: We will contact you when your supercharger arrives to confirm details.

Feel free to contact us with any questions:
sales@greenhulkstore.com
* = Be sure to purchase additional insurance from the shipping company. RIVA Racing and GreenHulk PWC Performance are not responsible for packages lost or ride plates damaged in transit to the facility.

Complete 325 XX-Charger Option: We also offer new, modified OEM superchargers equipped with our XX-Charger Impeller saving you shipping and downtime. 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 Impeller. Installation of this XX-Charger Impeller could impact the vehicle manufacturer’s warranty coverage.