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Need help deciding between Remote and Dyno? Ask us first →For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.
The response when you open the throttle is a big part of the fun. Our Sea-Doo GTR-X 300 ECU remap for 2025 focuses on power delivery you can enjoy while riding, with guided remote tuning for your own craft, fuel and fitted parts.
Tell us how your craft feels now and what you would like from its response. We use that feedback alongside the requested data, so the calibration reflects your GTR-X and its actual specification. The device-inclusive and Tune Only options let you choose around the compatible equipment you already own.
Our custom tunes include up to four revisions in the first 30 days, followed by log reviews at 3, 6 and 12 months. Your feedback helps us refine the calibration and check how your vehicle is running after you have had time to use it.
We also offer physical upgrades for most vehicles. If you're looking to take yours further, tell us what you have in mind. We can help you choose suitable parts and plan the tuning around them.
| Option | What you get | SKU |
|---|---|---|
| Tune & Tuning Device | Custom remote calibration with the tuning device, required licence and delivery included. You keep the device. | HA-V53787296301398 |
| Tune Only | Custom calibration for use with a compatible tuning device you already own. A new device is not supplied. | HA-V53787296334166 |
Remote tuning lets us work with you while the craft stays at your location. First, we confirm support for your vehicle and check its fitted hardware and the fuel you plan to use. We then guide you through reading and loading the calibration with the device. Send us the requested logs and your feedback so we can check the response and refine the tune.
Tune & Tuning Device includes the tuning device, required licence and delivery. You keep the device. Choose Tune Only when you already own compatible equipment.
Collect any requested data in a suitable, safe and lawful setting, following the tuner instructions. If a reading or a running concern needs attention, tell us before continuing so it can be assessed.
| Specification | Details |
|---|---|
| Application | Sea-Doo GTR-X 300 |
| Model years | 2025 |
| Service provider | Hoonies Adrenaline |
| Device-inclusive package | Tuning device kept by customer; required licence and delivery included |
| Custom tune aftercare | Up to four revisions within 30 days; log reviews at 3, 6 and 12 months |
Tell us the exact craft, fitted parts, intended fuel and any running concerns before tuning. Keep the hardware and fuel consistent during calibration. Speak to us before later changes that affect the tune; further calibration may be needed.
Tuning is a vehicle modification and can affect warranty cover. Discuss it with your insurer and warranty provider before the work.
Once you have had a chance to ride, tell us how your craft feels. Our custom tunes include up to four revisions within 30 days, plus log reviews at 3, 6 and 12 months to check how everything is running.
Tell us about your Sea-Doo GTR-X 300, its fitted parts and what you would like from it. Get in touch with us and we will help you choose the right tuning route.
Yes. Tell us about the parts on the craft and the fuel you will use, so the calibration can account for them.
Tell us before fitting parts that affect engine operation or fuelling. The calibration was developed for the current combination, so further tuning may be needed.
Up to four revisions within 30 days, followed by log reviews at 3, 6 and 12 months to check how everything is running.
It can. Treat the tune as a vehicle modification and discuss cover with your warranty provider and insurer before the work.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
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