6 MPS — Stage 3 ECU Tune
- Increased power output to 215kW
- Enhanced throttle response
- Improved engine spirit and responsiveness
- Restored intake valve efficiency through carbon deposit removal
- Optimized turbo boost characteristics
The first-gen MPS on the Mazda 6 chassis is a solid platform once you address the usual intake valve coking and open up the exhaust side. This one came through after a full hardware refresh: larger turbo, intake, downpipe, and a thorough carbon clean of the intake valves—critical on these direct-injection motors if you want consistent airflow and stable fuelling.
Calibration focused on dialling in the new hardware for closed-circuit use, with fuelling and ignition maps built around the upgraded turbo's flow characteristics. Final result landed at 215 kW at the wheels and 390 Nm, which is a healthy step up from factory and well-suited to track work where the extra midrange comes into play. No dramas on the dyno, and the tune held stable through multiple pulls.
Why is intake valve cleaning so important on these engines?
Direct injection means fuel never washes the intake valves, so carbon builds up over time and chokes airflow. Cleaning them before tuning ensures the calibration reflects actual available flow, not restricted flow that will only get worse.
Is this setup suitable for street use?
This is a Stage 3 build intended for off-road and closed-circuit competition use. The hardware and calibration are optimised for performance, not daily driving.
What does 215 kW at the wheels translate to at the engine?
Drivetrain loss varies, but typically you'd add 15–20% for an AWD platform like the MPS. Either way, the figure supplied is what the workshop recorded at the wheels.
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