RIVA Racing Sea-Doo 300 Power Filter Kit – 2020+ RXT-X / GTX 300, 2021+ RXP-X 300 / Apex & 2024+ GTR-X 300 | RS13121-2

The RIVA Racing Sea-Doo 300 Power Filter Kit delivers a steady supply of cool, high-volume air to your supercharged Rotax 300hp engine, producing noticeably sharper throttle response, stronger mid-range acceleration, and higher top-end RPM.

This premium intake system completely replaces the restrictive factory airbox with a high-volume, precision-formed intake duct that connects directly to the supercharger via a large 4" flow-matched velocity stack. Cool air is drawn through a proprietary oversized stainless-steel mesh flame arrestor (U.S. Coast Guard SAE J1928 certified) for maximum airflow and safety.

Simple bolt-on installation and a quick-release design allow fast removal for routine engine maintenance. The kit includes a water-repellent pre-filter and detailed instructions.

Updated Features

• Delivers significant gains in acceleration, throttle response, and top-end power
• Proprietary oversized stainless-steel mesh flame arrestor (USCG SAE J1928 certified)
• Large 4" intake duct with flow-matched velocity stack for optimal airflow
• Includes water-repellent pre-filter
• Quick-release design for easy engine access and maintenance
• IJSBA legal for all classes
• Stock ECU automatically compensates for the increased airflow

 Updated & Expanded Fitment (Current as of 2026) Fits the following Sea-Doo models (300hp supercharged engines only):

• 2020–2026 Sea-Doo RXT-X 300
• 2020–2026 Sea-Doo GTX 300 / GTX Limited 300
• 2021–2026 Sea-Doo RXP-X 300
• 2023 Sea-Doo RXP-X Apex 300
• 2024–2026 Sea-Doo GTR-X 300

Does NOT fit 325hp models (RXP-X 325, RXT-X 325, GTX Limited 325 — use RIVA RS13220 instead).

Important Installation Notes

• Requires one of the following for the engine breather:
  • RIVA Catch Can / Engine Breather Kit (RS19050-BCC-6) or
  • RIVA Power Filter Breather Hose (RS19050-PFBH)
• Not compatible with the Sea-Doo Secondary Battery Harness Kit