Lukos Engineering / All Products

Sea-Doo GTR-X 300 2025 Custom ECU Tuning

✓ Fitment checked
£920.00 VAT included. Shipping calculated for your destination.

Available to Order

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Delivery, customs and taxes Know the landed cost before you order

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.

Lead times and urgent orders Check timing before you commit

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.

Fitment checked before you order

Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.

Technical specifications
Provider Lukos Engineering
Service Custom ECU tuning
Application Sea-Doo GTR-X 300, 2025
Options Tune + device; tune only

Summary

Custom ECU tuning for the 2025 Sea-Doo GTR-X 300, calibrated by Lukos Engineering. The GTR-X 300 already punches hard for its size; a machine-specific calibration sharpens how that delivery arrives - response and consistency refined from your craft's data, not a file built for someone else's. Choose the tune with the tuning device included, or tune only if you already run compatible hardware.

Best For

  • GTR-X 300 owners refining response for harder riding
  • Riders who want their specific craft calibrated, modifications included
  • Owners choosing data-driven work over generic flashes

Key Specs

  • Provider: Lukos Engineering
  • Service Type: Custom ECU tuning
  • Vehicle Application: 2025 Sea-Doo GTR-X 300
  • Options: Tune and Tuning Device; Tune Only

Fitment And Setup Checks

Confirm your craft is the 2025 GTR-X 300 before ordering and mention any modifications. Recent Sea-Doo ECUs can require an unlocking step before calibration - check the requirements for your exact craft with us first so the process is planned end to end. Tune-only assumes you already own compatible hardware.

Delivery, customs and taxes

Know the landed cost before you order

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.

Lead times and urgent orders

Check timing before you commit

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.

Questions before you order

Frequently asked questions

Will my ECU need unlocking?

Possibly - some 2025 Sea-Doo ECUs require an unlock before tuning. Check with us for your craft before ordering.

Which option do I need?

Tune-only if you already run compatible tuning hardware; otherwise take the option with the device included.

Confirm the craft and let the GTR-X be calibrated around the way you actually ride it.

Fitment first

Exact fit for your vehicle, checked before you order

Use the checked vehicle route, then confirm model year, engine, drivetrain, hardware and existing modifications on the product page or with our team before you commit.

✓ Fitment checked
Need help with this product?

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.

Sea-Doo GTR-X 300 2025 Custom ECU Tuning
Sea-Doo GTR-X 300 2025 Custom ECU TuningTune & Tuning Device
Available to Order £920.00