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Transform your BMW M135i F40 with Ecotune ECU software. Achieve massive power gains and sharper response. Expertly installed at MGM Leeds with optional TCU gearbox tuning.
Fast UK Delivery on all Orders, please see delivery information.
All returns must be postmarked within fourteen (14) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.
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Unlock the true performance of your BMW M135i F40 (2.0 Petrol) with our Ecotune ECU recalibration. Specifically developed for the B48 turbocharged engine, this software delivers a substantial increase in power and torque while maintaining the sophisticated driving characteristics of the xDrive system. Engineered for reliability and peak efficiency, it is the definitive upgrade for the F40 platform.

This software requires professional application to ensure your vehicle's safety and performance limits are respected. Our team at MGM Leeds performs a comprehensive health check before any software is uploaded.
We offer software calibrations to suit your vehicle's current hardware setup. Whether you are running a stock car or have added performance intakes, we have the right map for you.
Designed for stock hardware. Focuses on safe, reliable gains that transform the vehicle without needing mechanical changes.
Optimized for vehicles with upgraded downpipes and cooling hardware. Maximizes the flow potential of the B48 engine.
To fully realize the performance gains of your ECU remap, we highly recommend adding a TCU TUNE. This gearbox software raises torque limits and reduces shift times, ensuring your ZF8 transmission can handle the increased output from the engine.
This software is specifically calibrated for the F40 chassis M135i xDrive models equipped with the 2.0 Petrol engine.

| Metric | Typical Gains (Stage 1) |
|---|---|
| BHP Increase | +30 to +45 BHP (Fuel dependent) |
| Torque Increase | +50 to +85 Nm |
| Speed Limiter | Removal Optional |
Important Note: For cars manufactured after June 2020, an ECU unlock may be required. Please contact the team at MGM Leeds to confirm your vehicle's compatibility before booking.