STAGE 1 File Modification – Personal Watercraft

Do you want to unlock the full potential of your personal watercraft (PWC)?

Our STAGE 1 File Modification – Personal Watercraft service includes an individual ECU calibration prepared based on your original file. We optimize engine control parameters, throttle response, torque limiters, RPM, and top speed – depending on the model and electronics used.

We prepare ECU tuning files for Sea-Doo, Yamaha WaveRunner, and Kawasaki Jet Ski personal watercraft. We support both popular naturally aspirated units and more powerful supercharged versions.

⚙️ How does it work?

1. Purchase the STAGE 1 – Personal Watercraft service.
2. After the purchase, you will receive a message from us. In response, please send your original BIN / ORI ECU file to the address:
   📧 tuningfileskrk@gmail.com
3. Based on your file, we perform an individual ECU calibration, tailored to your specific model, engine, and controller version.
4. You will receive a finished online tuning file, ready to be uploaded by you or your workshop.

🔧 What can we modify?

The scope depends on the specific watercraft and controller. It most often includes:

• optimization of fuel and ignition maps,
• increase in available power and torque,
• improved throttle response,
• throttle characteristic optimization,
• RPM limit adjustments,
• torque limiter adjustments,
• raising or removing the factory speed limiter,
• parameter optimization for modified watercraft,
• calibration matching for installed mechanical modifications.

For more powerful supercharged units, we can prepare a calibration suited to the specific configuration of your watercraft.

🏁 Popular models that can be tuned

Sea-Doo

• Spark / Spark TRIXX
• GTI 130
• GTI 170
• GTR 230
• GTR-X 300
• GTX 170
• GTX 230
• GTX 300
• RXT-X 300
• RXP-X 300
• RXP-X 325
• RXT-X 325
• Wake 170
• FishPro
• Explorer Pro

Sea-Doo has a very wide base of available tuning calibrations, covering the Spark, 130/170 HP units, as well as the more powerful 230/300/325 HP versions. For newer models with the Bosch MG1 ECU, prior unlocking of the controller may be required.

Yamaha WaveRunner

• EX
• EXR
• VX
• VX Cruiser
• VX Cruiser HO
• GP HO
• GP SVHO
• FX HO
• FX SVHO
• FX Cruiser SVHO
• FX Limited SVHO

Particularly interesting for tuning are models equipped with the 1.8 SVHO engine, used in the GP SVHO and FX SVHO, among others. This unit has great potential for further modification.

Kawasaki Jet Ski

• STX 160
• STX 160X
• STX 160LX
• Ultra 310X
• Ultra 310LX
• Ultra 310LX-S

Kawasaki utilizes the 1498 cm³ engine in the STX 160 models and a supercharged unit in the Ultra 310 family, among others.

If your model is not on the list, send us your ECU file. We will check the controller, software version, and modification possibilities.

⏱️ Turnaround time

Up to 2 hours from receiving the correct ECU file.

In the case of an unusual controller, non-standard software version, or if additional analysis is required, we will inform you before starting the work.

🌊 Who is this for?

The service is intended for personal watercraft owners as well as workshops and tuners who want to offer their customers professional ECU modifications without needing to prepare the calibrations themselves.

Why is it worth it?

• Individual calibration based on your original ECU file.
• Support for popular Sea-Doo, Yamaha, and Kawasaki watercraft.
• Capability to work with naturally aspirated and supercharged units.
• Calibration matched to the specific model and ECU version.
• Fast turnaround – up to 2 hours.
• Ready-to-use online tuning file for you or your workshop to upload.

🛒 Order STAGE 1

Increase the capabilities of your personal watercraft with a professional STAGE 1 file modification.

Buy online → send the ECU file → receive the finished calibration.