📦 Important: send us your product
For this service, you must send your product to us. Please print the shipping label and attach it clearly to the parcel before sending it.
📄 Download shipping label
🔥 ECU FLASH – Kawasaki Z900 / SE / Z900RS / Café / RS SE
More torque. Smoother throttle response. Maximum performance. 🏁
With our PKB ECU flash for the Kawasaki Z900 you unlock the full potential of your inline-four – for the assigned model years of the Z900, SE and Z900RS variants.
The 948cc inline-four in the Z900 already delivers strong performance as standard, but is significantly restricted by factory emissions requirements, mapping limits and conservative maps
👉 This is where we come in.
Vehicle compatibility and exclusion of the A2 version
This offer applies to the standard Kawasaki Z900, model years 2017–2026, and the Z900 SE with the higher-output standard engine, model years 2022–2026. The separate 70-kW/A2 version, including vehicles based on it that are restricted to 35 kW, is excluded.
Conversion of this 70-kW/A2 version to the higher-output standard version is not offered with this ECU flash. Our technical assessment found cylinder-head hardware differences; a software-only change is not sufficient.
Please specify the exact vehicle version, original rated power and model year when ordering. Also supported: Kawasaki Z900RS 2018–2026, Z900RS Café 2018–2023 and 2026, and Z900RS SE 2022–2026. Market availability and ECU version may vary by model year.
⚙️ What we optimize
✔ Adjustment of fuel injection & ignition maps
✔ Significantly improved throttle response
✔ Removal of torque & power restrictions
✔ Optimization for aftermarket parts (exhaust, air filter, etc.)
✔ Smooth engine running throughout the rev range
✔ Fan control & auxiliary functions can be optimized
🏁 The result
🔥 Noticeably stronger low-end pull
🔥 Significantly sharper throttle response
🔥 Smooth power delivery without hesitation
🔥 Rideability on a whole new level
The standard Z900 impresses with its free-revving character – our setup makes it even more aggressive, precise and controllable
💻 PKB Performance setup
All tunes have been:
✔ Developed in-house
✔ Tested on our own dyno
✔ Validated in real-world riding conditions
➡️ Not a generic file, but proven PKB setups developed through practical experience
📦 Process
- Remove your ECU & send it to us
- Flashing carried out in-house
- Return shipping or collection
➡️ Express service available by appointment
⚠️ Important information
❗ For racing / export only – not approved for public-road use under German road traffic regulations (StVO)
❗ No guarantee or warranty
❗ The vehicle must be in sound mechanical condition
💬 Conclusion
The Kawasaki Z900 is a formidable starting point –
we turn it into a perfectly tuned package.
👉 More performance. More control. More PKB. 💪