HP
Typical planning range: +35 to +60 HP with full setup review
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Rotax 1630 ACE 325 / 2024-2026
A higher-output 325 build path for riders planning tune, cooling, and driveline review before pushing the platform harder.

Price
$2,500
Build-path planning estimate
Install
Advanced
8-12 hours plus setup
What you get
GT40-SD-STG2-325
Stage 2 base path
GT40-SD-SC-325
Supercharger support review
GT40-SD-OLC-325
Cooling upgrade review
HP
Typical planning range: +35 to +60 HP with full setup review
Torque
Build-dependent; prop, tune, and clutch setup matter
Boost
Tune-dependent higher-output boost range
Recommended for
| 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
No. Stage 3 should be treated as a build path with tune, cooling, fuel, and driveline review.
You can plan the path at any time, but Stage 3 assumes the supporting Stage 2 foundation is handled.
Use an experienced installer or tuner familiar with higher-output 1630 ACE builds.
In-stock GT40 parts normally ship from the current GT40 fulfillment queue. Check the product page before checkout for live availability.
Any performance modification can affect factory warranty coverage. Confirm with your dealer and installer before modifying a new craft.
Yes. Use your exact year, model, and engine when ordering so the GT40 team can confirm the correct fitment path.