HP
Typical planning range: +35 to +50 HP with full setup review
Rotax 1503 4-TEC supercharged / 2012-2017
Sea-Doo 260 Stage 3 Performance Kit
An advanced legacy 4-TEC build path for riders ready to review tune, fuel, cooling, and driveline setup.
Price
$2,200
Build-path planning estimate
Install
Advanced
8-12 hours plus setup
What you get
Included GT40 SKUs
GT40-SD-STG2-260
Stage 2 base path
GT40-SD-SC-260
Supercharger support review
GT40-SD-OLC-260
Cooling upgrade review
Torque
Build-dependent; tune and clutch condition matter
Boost
Tune-dependent higher-output boost range
Recommended for
Experienced 4-TEC owners
Riders rebuilding around higher output
Machines already inspected for maintenance baseline
| 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 Stage 3 right for an older ski?
Only if the machine is mechanically ready. Inspect maintenance state first.
Does Stage 3 require professional setup?
Yes. Use an experienced installer or tuner for this level.
Can I use Stage 3 parts on a 215?
Some paths overlap, but verify the exact 215 or 260 model 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.