HP
Typical planning range: +25 to +40 HP with tune-matched setup
Rotax 1630 ACE 300 / 2016-2025
Sea-Doo 300 Stage 2 Performance Kit
Airflow, catch can, BOV, and tubing support for 300 HP Sea-Doo riders building past the first step.
Price
$1,600
Live kit price
Install
Intermediate
5-8 hours
What you get
Included GT40 SKUs
GT40-SD-INT-300
300 Air Intake
GT40-SD-CC-4TEC
4-TEC / ACE Catch Can Kit
GT40-SD-TUBE-300
300 Intercooler Tubing with BOV
Torque
Stronger midrange under repeated acceleration
Boost
Mild-tune boost range; verify with tuner
Recommended for
Riders who want the popular 300 HP stack
Owners adding air and support together
Builds that need stronger repeated-pull consistency
| Feature | Stage 1 | Stage 2 | Stage 3 |
|---|---|---|---|
| Air Intake | Yes | Yes | Yes |
| Intercooler Tubing with BOV | Yes | Yes | Yes |
| Cooling review | Optional | Optional | Yes |
| Exhaust/waterbox path | Optional | Optional | Yes |
| Tune required | Optional | Optional | Yes |
FAQs
Is this the right kit after Stage 1?
Yes. Stage 2 is the natural next step once the first Air Intake upgrade is handled.
Does Stage 2 include every possible upgrade?
No. Stage 2 is the practical air/support package. Stage 3 adds higher-output planning.
Should I check fitment before checkout?
Yes. Confirm exact year, model, and any existing modifications before buying.
How fast does the kit ship?
In-stock GT40 parts normally ship from the current GT40 fulfillment queue. Check the product page before checkout for live availability.
Will this affect my factory warranty?
Any performance modification can affect factory warranty coverage. Confirm with your dealer and installer before modifying a new craft.
Can GT40 help verify my exact model?
Yes. Use your exact year, model, and engine when ordering so the GT40 team can confirm the correct fitment path.