This Stage 1 tuning file is precisely engineered for the modern Seat Leon 1.4 TSI with the CZCA engine, managed by the Bosch MED17.5.25 ECU. This calibration is designed to enhance the driving pleasure by making the responsive TSI engine even more engaging and lively.
Our remap focuses on improving throttle response for a more direct connection between the driver and the car. We optimize the boost and fuel maps to deliver a stronger and more linear power curve, making acceleration feel more urgent and satisfying. This tune provides a noticeable performance uplift for daily driving, turning the Leon into a more exciting and fun-to-drive hatchback, all while maintaining factory safety parameters.