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Unlock the full performance potential of your 2019-2023 BMW X5M or X6M with the German Car Accessories GCA Performance ECU Tune. Designed specifically for the F95 X5M and F96 X6M platforms, this performance calibration is engineered for BMW’s high-performance 4.4L Twin Turbo V8 S63 engine to deliver increased horsepower, stronger torque delivery, sharper throttle response, and improved overall drivability.

Developed with a performance-first mindset, the German Car Accessories GCA Performance ECU Tune transforms the way your BMW M SUV responds, accelerates, and delivers power. Throttle input becomes more immediate, torque delivery becomes stronger and more consistent, and the entire powerband is optimized for improved acceleration from the mid-range surge to the top-end pull.

GCA Performance securely saves your factory ECU data before tuning, allowing you to restore your vehicle back to the original factory software settings at any time. Whether you are looking for enhanced daily performance or maximum potential from the S63 twin-turbo V8 engine, this ECU tune provides a complete upgrade in performance while maintaining the ability to return to stock.

Vehicle Fitment

Fits the following BMW models:

• 2019-2023 BMW X5M (F95)
• 2019-2023 BMW X5M Competition (F95)
• 2019-2023 BMW X6M (F96)
• 2019-2023 BMW X6M Competition (F96)

Engine Compatibility:

• 4.4L Twin Turbo V8 (S63 Engine)

Features

• Developed by German Car Accessories under the GCA Performance lineup
• Custom ECU calibration engineered specifically for the BMW S63 twin-turbo V8 engine
• Increased horsepower and torque throughout the RPM range
• Improved throttle response for faster acceleration
• Stronger and more consistent torque delivery
• Optimized power delivery from mid-range acceleration to top-end performance
• Downpipe readiness with check engine light suppression (for off-road use only)
• Enhanced exhaust acoustics with extended or adjustable burble settings
• Factory speed governor removal for unrestricted performance
• Octane-specific calibration tailored to your fuel quality
• Fully configurable cold start behavior (On/Off)
• 100% reversible ECU tuning with the ability to return to factory settings at any time
• Stage 1 tuning available for vehicles equipped with factory downpipes
• Stage 2 tuning available for vehicles equipped with German Car Accessories Performance Downpipes
• No additional charge for Stage 2 tuning
• Stage selection will be confirmed after purchase during the tuning process

Performance Gains

• Horsepower Gain: 100 HP Increase
• Torque Gain: 100 TQ Increase

Actual performance gains may vary depending on fuel quality, vehicle condition, supporting modifications, and environmental conditions.

Tuning Instructions

• Once purchased, tuning instructions will be emailed to you
• Vehicle tuning is completed using an ENET cable, which is provided with your purchase
• If you purchase the ECU Unlock service, additional unlock instructions will also be provided
• Vehicles with build dates after June 2020 (06/2020+) come equipped with factory-locked ECUs
• If you do not purchase the ECU Unlock service, you will need to arrange your own ECU unlock before tuning can be completed

Warranty

• All German Car Accessories products include a 1-Year Warranty
• Factory ECU data is securely saved, allowing the vehicle to be restored to stock settings at any time