Description
Unlock the true performance potential of your BMW S63TU4-powered vehicle with the MG Flasher Stage 1 Tune. Developed for drivers seeking maximum performance from an otherwise stock vehicle, this calibration safely increases power and torque while maintaining excellent drivability and smooth power delivery.
The Stage 1 calibration is engineered to optimize the entire powerband, eliminating factory power dips and improving throttle response, boost control, and overall engine efficiency. Designed specifically for stock hardware vehicles, this tune provides substantial gains without requiring major performance modifications.
A valid MG Flasher License is required to flash any OTS or Custom Map.
ECU Unlock Information
- ECUs manufactured in July 2020 and newer are supported with a bench unlock provided by Femto or AutoTuner.
- The ECU must be shipped to the unlock provider or unlocked by a qualified third-party tuner using appropriate bench tools.
- Recent BMW software updates may require a Bench OBD Unlock before flashing.
- Authorized MG Flasher dealers can perform ECU unlocking services.
- Additional third-party bench unlock fees may apply.
Stage 1 Performance Features
- Increased boost pressure calibration
- Optimized ignition timing strategies
- Lambda optimization
- Torque limiter recalibration
- Enhanced throttle response
- Improved horsepower and torque delivery
- Smooth and consistent powerband optimization
- NBT display horsepower and torque gauge recalibration
- Optimized for xHP transmission tuning software
Adjustable Map Features
Each Stage 1 OTS calibration includes access to available MG Flasher tuning features:
- Adjustable exhaust burble settings
- Switchable map functionality where supported
- Max Cooling activation
- Speed limiter removal
- Cold start adjustment (off-road use only)
- High-flow catalytic converter adaptation (off-road use only)
- Exhaust flap control
On-The-Fly Feature Information
- Switchable Maps On-The-Fly are currently supported on specific BMW F-Series Gen 1 B58 applications.
- Hybrid platforms and additional Gen 2 on-the-fly functions continue to be expanded through software development.
- Supported adjustable options can typically be modified prior to reflashing using the MG Flasher platform.
- Future software updates may expand on-the-fly functionality across additional platforms.
Transmission Limiter Information
MG Flasher incorporates advanced torque management strategies that preserve accurate load calculations and smooth transmission behavior.
Gen 2 Platform Support
- No transmission tuning required for torque limiter calibration adjustments.
- Maintains accurate torque and load calculations.
- Preserves factory-like shift quality.
- Torque limit adjustments available directly through MG Flasher software.
- Supports torque limiter increases up to 1000 Nm on supported platforms.
Gen 1 Platform Support
Vehicles equipped with the ZF 8HP50 transmission may benefit from additional transmission calibration adjustments.
Recommended solutions include:
- Raising transmission torque limits through xHP transmission tuning software.
- Professional transmission ECU recalibration performed by a qualified tuner.
Additional Benefits
- Improved acceleration throughout the RPM range
- Enhanced driving experience and throttle sensitivity
- Factory-like drivability under normal operation
- Compatibility with future MG Flasher software updates
- Ability to return the ECU to stock calibration when desired
Fitment
BMW Vehicles Equipped with the S63TU4 Engine
- BMW M5 Competition (F90 LCI) 2021-2023
- BMW M8 Coupe Competition (F92) 2020-2025
- BMW M8 Convertible Competition (F91) 2020-2025
- BMW M8 Gran Coupe Competition (F93) 2020-2025
- Additional BMW vehicles equipped with the S63TU4 4.4L TwinPower Turbo V8 engine and supported MG1 ECU platforms
Engine Compatibility
- BMW S63TU4 4.4L Twin-Turbocharged V8 Engine
- MG1 ECU-equipped vehicles
- Stock hardware vehicles
- Vehicles running factory catalytic converters or factory-style emissions equipment
- Compatible with supported gasoline fuel calibrations
ECU Compatibility
- ECUs manufactured before July 2020 are generally supported when otherwise compatible.
- ECUs manufactured in July 2020 and newer require a bench unlock before flashing.
- Compatibility may vary depending on ECU software version and BMW firmware updates.
- Vehicle verification is recommended before purchase.
Disclaimer
MG Flasher products are intended for competition racing and off-road use only and may not be legal for use on public roads in all regions. Users are responsible for ensuring compliance with local regulations, emissions requirements, and vehicle warranty considerations.
Bench unlocking services are performed by third-party providers and are not included with the purchase of this software. Additional charges may apply depending on the selected provider.
