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SeaDoo Switch Performance

Experience jet-driven power and precision.
The Sea-Doo Switch combines Rotax acceleration, tri-hull stability, and fingertip control for a ride that’s fast, smooth, and built to thrill.

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Seadoo Performance

GT40Marine delivers high-quality Sea-Doo performance upgrades — from catch cans to intercoolers — built for power, reliability, and speed on the water.

Seadoo Performance

GT40 High-Flow Air Intake

Our performance air intake system boosts airflow, throttle response, and overall horsepower — keeping your Sea-Doo running cooler and stronger every ride.

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🔥 Summer Performance Special

Upgrade your Sea-Doo with our best-selling parts at discounted prices—only for a limited time!

Air Intake

Exhaust

Catch Can

Seadoo Switch Stage 1

Seadoo 230 - 300 Stage 1

Seadoo 325 Stage 1

We Ship Worldwide

Welcome to Gt40 Marine! Your ultimate marine parts store for Seadoo and boat parts. We offer high-quality, affordable parts for all your marine supply needs.